Surveillance aérienne

Total E&P UK a chargé Oil Spill Response Limited (OSRL) de procéder à un survol régulier de la zone où se situe la plate-forme Elgin. L'objectif est de contrôler régulièrement la présence et l'ampleur de la pollution maritime consécutive à la fuite de gaz et de condensats du 25 mars.

OSRL est un groupement d'organisations spécialisé dans la gestion des déversements et des fuites d'hydrocarbures. Les moyens déployés par OSRL en cas de déversement ou de fuite d'hydrocarbures sont très vastes (solutions techniques, personnel qualifié). 

L’OSRL estime les quantités d’hydrocarbures présentes à la surface par la méthodologie donnée par l’Accord de Bonn. Elle consiste à noter l’aspect et l’étendue des surfaces affectées puis d’appliquer à chacune les volumes selon le tableau suivant :


Les aires en km2 données par OSRL correspondent à l’aire rectangulaire la plus large au sein de laquelle certaines parties sont irisées. OSRL donne ensuite la proportion de cette aire réellement couverte par des hydrocarbures. « Sheen area » correspond aux aires couvertes en catégorie 1 « Reflet (argenté/gris) ».


Pour effectuer la mission de surveillance demandée par Total E&P UK, OSRL a mobilisé un appareil Dornier 228. Le plan de vol est déterminé d'un commun accord entre Total E&P UK et OSRL, autour de la plate-forme Elgin, sur la base d'observations préalables, en fonction des conditions météorologiques et en mer.


OSRL a rédigé un rapport pour chacun des vols de surveillance effectués, duquel est extraite la section « Résumé des observations » ci-dessous (en anglais uniquement) :

 

Over Flight Report – May 20th – 09h00

Date : 20th May 2012 Flight #104 Wheels up : 0801 (BST) Wheels down : 1046 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of between 1 and 6 nm, 1200 ft cloud base, a 15-20 knot north easterly wind (040°) and slight seas.

No sheen was observed.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #105 Date 20/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________

Over Flight Report – May 19th – 14h00

Date : 19th May 2012 Flight #103 Wheels up : 1257 (BST) Wheels down : 1554 (BST)

Weather conditions : The weather conditions on-scene during the overflight were poor, with visibility of 5-8 nm, 1000 ft cloud base, a 20 knot north easterly wind (040°) and moderate seas.

The quantification showed a 1.630km x 0.360km (0.587 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.009 and Max 0.070 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #104 Date 20/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
_______________________________________________________________________________________

Over Flight Report – May 19th – 09h00

Date : 19th May 2012 Flight #102 Wheels up : 0758 (BST) Wheels down : 0957 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of more than 10 nm, 1500 ft cloud base, a 25 knot north easterly wind (045°) and moderate seas.

The quantification showed a 2.427km x 0.380km (0.923 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.011 and Max 0.083 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #103 Date 19/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________

Over Flight Report – May 18th – 14h00

Date : 18th May 2012 Flight #101 Wheels up : 1259 (BST) Wheels down : 1559 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 2000 ft cloud base, a 12 knot north easterly wind (070°) and slight seas.

The quantification showed two separate sheen areas.
The first one involved a 0.853km x 0.067km (0.057 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 0.112km x 0.050km (0.006 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.003 and Max 0.015 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #102 Date 19/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
_______________________________________________________________________________________

Over Flight Report – May 18th – 09h00

Date : 18th May 2012 Flight #100 Wheels up : 0805 (BST) Wheels down : 1104 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5-10 nm, 2500 ft cloud base, a 6 knot easterly wind (100°) and calm seas.

The quantification showed a 0.090km x 0.025km (0.002 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Max < 0.0002 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #101 Date 18/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
_______________________________________________________________________________________

Over Flight Report – May 17th – 14h00

Date : 17th May 2012 Flight #99 Wheels up : 1242 (BST) Wheels down : 1532 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 3000 ft cloud base, a 5 knot north westerly wind (300°) and calm seas.

No sheen was observed.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #100 Date 18/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________

Over Flight Report – May 17th – 09h00

Date : 17th May 2012 Flight #98 Wheels up : 0752 (BST) Wheels down : 1043 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 2500 ft cloud base, a 12 knot north westerly wind (305°) and slight to moderate seas.

The quantification showed a 0.468km x 0.091km (0.043 km2) area with 3% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Max 0.0004 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #99 Date 17/05/2012 Time on-scene : 1330 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________

Over Flight Report – May 16th – 14h00

Date : 16th May 2012 Flight #97 Wheels up : 1259 (BST) Wheels down : 1559 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 3000 ft cloud base and a 30 knot north westerly wind (315°) and rough seas.

No sheen was observed.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #98 Date 17/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 16th – 09h00

Date : 16th May 2012 Flight #96 Wheels up : 0753 (BST) Wheels down : 1045 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 2000 ft cloud base (3/8), a 25-30 knot north westerly wind (325°) and rough to moderate seas.

The quantification showed a 2.487km x 0.303km (0.753 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.009 m3 and Max 0.068 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #97 Date 16/05/2012 Time on-scene : 1300 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 15th – 14h00

Date : 15th May 2012 Flight #95 Wheels up : 1245 (BST) Wheels down : 1540 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 3000 ft cloud base, and a 25 knot northerly wind (355°) and moderate seas.

The quantification showed three separate sheen areas.
The first one involved a 3.470km x 0.280km (0.972 km2) area with 60% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.350km x 0.560km (0.972 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The third one involved a 2.980km x 0.4000km (1.192 km2) area with 60% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up the three sheen bodies: Min 0.067 m3 and Max 0.503 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #96 Date 16/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 15th – 09h00

Date : 15th May 2012 Flight #94 Wheels up : 0754 (BST) Wheels down : 1041 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10 nm, 5/8 cloud cover, a 20-25 knot northerly wind (350°) and moderate seas.

The quantification showed a 6.197km x 0.340km (2.104 km2) area with 70% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.059 m3 and Max 0.442 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #95 Date 15/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 14th – 14h00

Date : 14th May 2012 Flight #93 Wheels up : 1256 (BST) Wheels down : 1547 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, no cloud cover, and a 28 knot westerly wind (240°) and moderate seas.

The quantification showed a 0.710km x 0.070km (0.050 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.001 m3 and Max 0.007 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #94 Date 15/05/2012 Time on-scene : 0800 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 14th – 09h00

Date : 14th May 2012 Flight #92 Wheels up : 0754 (BST) Wheels down : 1052 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 2000 ft cloud base and a 35 knot south-westerly wind (250°) and moderate seas.

The quantification showed a 0.800km x 0.200km (0.160 km2) area with 10% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.001 m3 and Max 0.005 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #93 Date 14/05/2012 Time on-scene : 1300 (BST)
Timings may vary according to weather, wind directions and landing permissions. 

___________________________________________________________________________________

Over Flight Report – May 13th – 09h00

Date : 13th May 2012 Flight #91 Wheels up : 0734 (BST) Wheels down : 1032 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 8 nm, 5000 ft cloud base, a 28 knot westerly wind (235°) and rough seas.

No sheen was observed.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #92 Date 13/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 12th – 14h00

Date : 12th May 2012 Flight #90 Wheels up : 1254 (BST) Wheels down : 1540 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 6 nm, 2000 ft cloud base and a 20 knot north-westerly wind (315°) and moderate seas.

No sheen was observed on this flight.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #91 Date 13/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 12th – 09h00

Date : 12th May 2012 Flight #89 Wheels up : 0756 (BST) Wheels down : 1048 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 3000 ft cloud base and a 25 knot north-westerly wind (320°) and moderate seas.

Quantification : The quantification showed two sheen bodies. The first involved a 0.590km x 0.190km (0.11 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 0.800km x 0.300km (0.24 km2) area with 70% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.009 m3 and Max 0.067 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #90 Date 12/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 11th – 14h00

Date : 11th May 2012 Flight #88 Wheels up : 1250 (BST) Wheels down : 1548 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair, with visibility of 5 nm, 2000 ft cloud base and a 20 knot north-westerly wind (350°) and calm seas.

Quantification : The quantification showed a 3.894km x 2.576km (10.03 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.100 m3 and Max 0.753 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #89 Date 12/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 11th – 09h00

Date : 11th May 2012 Flight #87 Wheels up : 0755 (BST) Wheels down : 1043 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, 2000 ft cloud base and a 16 knot north-westerly wind (330°) and calm seas.

Quantification : The quantification showed a 2.740km x 0.720km (1.97 km2) area with 75% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.059 m3 and Max 0.444 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #88 Date 11/05/2012 Time on-scene : 1300 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 10th – 09h00

Date : 10th May 2012 Flight #86 Wheels up : 0755 (BST) Wheels down : 1050 (BST)

Weather conditions : The weather conditions on-scene during the overflight were poor, with visibility of 3 nm, 500 ft cloud base and a 32 knot eastern wind (080°) and rough seas.

Due to poor visibility and rough seas, no sheen was observed during this flight.

Next planned over-flight : Flight #87 Date 10/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 9th – 14h00

Date : 9th May 2012 Flight #85 Wheels up : 1258 (BST) Wheels down : 1550 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, cloud cover of 1500 ft and a 10 knot westerly wind (270°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 0.440km x 0.720km (0.32 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 3.050km x 0.590km (1.80 km2) area with 70% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.056 m3 and Max 0.426 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #86 Date 10/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 9th – 09h00

Date : 9th May 2012 Flight #84 Wheels up : 0802 (BST) Wheels down : 1050 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good with visibility of 10 nm, no cloud cover and a 13 knot north westerly wind (260°) and calm seas.

Quantification : The quantification showed three sheen bodies. The first involved a 3.75km x 0.35km (1.31 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second involved a 7.23km x 0.645km (4.66 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The third involved a 0.35km x 0.170km (0.06 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up the three sheen bodies: Min 0.120 m3 and Max 0.902 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #85 Date 09/05/2012 Time on-scene : 1300 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 8th – 14h00

Date : 8th May 2012 Flight #83 Wheels up : 1419 (BST) Wheels down : 1616 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good visibility of 10 nm, a 15 knot south-westerly wind (215°) and 2.5m swell.

Quantification : The quantification showed two sheen bodies. The first involved a 0.340km x 0.090km (0.031 km2) slick area with 80% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 0.570km x 0.200km (0.114 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.002 m3 and Max 0.014 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #84 Date 09/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 7th – 14h00

Date : 7th May 2012 Flight #82 Wheels up : 1258 (BST) Wheels down : 1555 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 2000 ft cloud base and good visibility of 10 nm, a 15 knots southerly wind (180°) and 2m swell.

Quantification : The quantification showed two sheen bodies. The first involved a 4.100km x 0.190km (0.779 km2) area with 80% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second involved a 2.500km x 0.250km (0.625 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.030 m3 and Max 0.225 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #83 Date 08/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 7th – 08h00

Date : 7th May 2012 Flight #81 Wheels up : 0801 (BST) Wheels down : 1059 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 2000 ft cloud base and good visibility of 10 nm, a 6 knots variable wind and 1.0m swell.

Quantification : The quantification showed three sheen bodies. The first involved a 2.400km x 0.500km (1.200 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second involved a 2.000km x 0.750km (1.500 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The third involved a 1.500km x 0.650km (0.975 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up the three bodies: Min 0.051 m3 and Max 0.379 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #82 Date 07/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 6th – 14h00

Date : 6th May 2012 Flight #80 Wheels up : 1308 (BST) Wheels down : 1606 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 1500 ft cloud base and good visibility of 10 nm, a 10 knot south-westerly wind (240°) and 2.5m swell.

Quantification : The quantification showed two sheen bodies. The first involved a 1.000km x 0.060km (0.060 km2) slick area with 60% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.350km x 0.700km (0.945 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.012 m3 and Max 0.096 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #81 Date 07/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 6th – 08h00

Date : 6th May 2012 Flight #79 Wheels up : 0800 (BST) Wheels down : 1058 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 2000 ft cloud base and good visibility of 10 nm, a 12 knot north westerly wind (300°) and 2m swell.

Quantification : The quantification showed two sheen bodies. The first involved a 2.000km x 0.500km (1.000 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second involved a 1.500km x 0.200km (0.300 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.005 m3 and Max 0.173 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #80 Date 06/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 5th – 14h00

Date : 5th May 2012 Flight #78 Wheels up : 1258 (BST) Wheels down : 1456 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 1500 ft cloud base and good visibility of 10 nm, a 22 knot north westerly wind (310°) and 3.5m swell.

Quantification : The quantification showed a 3.000km x 0.300km (0.900 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.007 m3 and Max 0.054 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #79 Date 06/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 5th – 08h00

Date : 5th May 2012 Flight #77 Wheels up : 0802 (BST) Wheels down : 1058 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 2000 ft cloud base and good visibility of 10 nm, a 25 knot north-north-westerly wind (330°) and 3.5m swell.

Quantification : The quantification showed three sheen bodies. The first involved a 1.1km x 0.090km (0.099 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second involved a 0.700km x 0.060km (0.042 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The third involved a 2.2km x 0.400km (0.880 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes adding up the three sheen bodies: Min 0.020 m3 and Max 0.149 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #78 Date 05/05/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 4th – 08h00

Date : 4th May 2012 Flight #76 Wheels up : 0756 (BST) Wheels down : 1058 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair, with good visibility of 10 nm below cloud base of 1500 ft, a 20 knot northerly wind (005°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 3.452km x 1.227km (4.236 km2) slick area with 60% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 4.320km x 0.427km (2.039 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.126 m3 and Max 0.946 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #77 Date 05/05/2012 Time on-scene : tbd
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 3rd – 14h00

Date : 3rd May 2012 Flight #75 Wheels up : 1335 (BST) Wheels down : 1641 (BST)

Weather conditions : The weather conditions on-scene during the overflight were characterized by thick low level clouds, with good visibility of 10 nm below a cloud base of 1500 ft, a 14 knot northerly wind (010°) and calm seas.

Quantification : The quantification showed a 7.93km x 1.14km (9.040 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.072 m3 and Max 0.542 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #76 Date 04/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. ________________________________________________________________________________________

Over Flight Report – May 3rd – 08h00

Date : 3rd May 2012 Flight #74 Wheels up : 0802 (BST) Wheels down : 1121 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 1500 ft cloud base, with good visibility of 10 nm, a 15 knot north-easterly wind (010°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 14.400km x 0.900km (12.960 km2) area with 10% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.100km x 0.200km (0.220 km2) area with 30% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.055 m3 and Max 0.409 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #75 Date 03/05/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________  

Over Flight Report – May 2nd – 14h00

Date : 2nd May 2012 Flight #73 Wheels up : 1351 (BST) Wheels down : 1658 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair with 2000 ft cloud base, with good visibility of 10 nm, a 18 knot north-easterly wind (035°) and calm seas.

Quantification : The quantification showed three sheen bodies. The first involved a 0.800km x 0.200km (0.160 km2) slick area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 7.000km x 1.100km (7.700 km2) area with 15% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). The third one involved a 1.100km x 0.300km (0.132 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Please note that it is unclear where the third sheen originated. The origin is estimated to be just outside the current search box. Calculated volumes adding up the three sheen bodies: Min 0.054 m3 and Max 0.405 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #74 Date 03/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. _______________________________________________________________________________________

Over Flight Report – May 2nd – 08h00

Date : 2nd may 2012 Flight #72 Wheels up : 0754 (BST) Wheels down : 1108 (BST)

Weather conditions : The weather conditions on-scene during the overflight were characterized by low level clouds, with good visibility of 8 nm below cloud base at 1000 ft, a 20 knot north- easterly wind (050°) and calm seas.

Quantification : The quantification showed three sheen bodies. The first involved a 2.930km x 2.640km (7.735 km2) area with 10% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 2.325km x 1.915km (4.452 km2) area with 8% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). The third one involved a 1.915km x 1.515km (2.901 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up the three sheen bodies: Min 0.074 m3 and Max 0.557 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #73 Date 02/05/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions.
________________________________________________________________________________________

Over Flight Report – May 1st – 14h00

Date : 1st May 2012 Flight #71 Wheels up : 1315 (BST) Wheels down : 1635 (BST)

Weather conditions : The weather conditions on-scene during the overflight were characterized by low level clouds, with visibility of 5 nm below cloud base at 300 ft, a 26 knot north-easterly wind (050°) and moderate seas.

Quantification : The quantification showed a 7.400km x 0.700km (5.180 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.041 m3 and Max 0.311 m3. Please note the cloud base was low at 300ft making the survey conditions challenging.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #72 Date 02/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – May 1st – 08h00

Date : 1st May 2012 Flight #70 Wheels up : 0800 (BST) Wheels down : 1055 (BST)

Weather conditions : The weather conditions on-scene during the overflight were characterized by low level clouds, with good visibility of 10 nm below cloud base at 400 ft, a 28 knot north- easterly wind (040°) and calm seas.

Quantification : The quantification showed a 6.20km x 4.00km (24.80 km2) slick area with 5% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.050 m3 and Max 0.372 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #71 Date 01/05/2012 Time on-scene : 1430 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 30th – 14h00

Date : 30th april 2012 Flight #69 Wheels up : 1340 (BST) Wheels down : 1630 (BST)

Weather conditions : The weather conditions on-scene during the overflight were clear, with good visibility of 20 nm, a 10 knot east-north- easterly wind (060°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 8.9km x 7.4km (65.86 km2) area with 15% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.3km x 0.750km (0.975 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.415 m3 and Max 3.110 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #70 Date 01/05/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 30th – 08h00

Date : 30th april 2012 Flight #68 Wheels up : 0751 (BST) Wheels down : 1055 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair, with good visibility of 10 nm, a 10 knot east-north- easterly wind (060°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 5.81km x 2.10km (12.20 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.52km x 1.25km (1.90 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.152 m3 and Max 1.143 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #69 Date 30/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 29th – 14h00

Date : 29th april 2012 Flight #67 Wheels up : 1338 (BST) Wheels down : 1632 (BST)

Weather conditions : The weather conditions on-scene during the overflight were covered, with good visibility of 10 nm, a 20-25 knot north-easterly wind (045°) and calm seas.

Quantification : The quantification showed three sheen bodies. The first involved a 1.50km x 0.30km (0.45 km2) area with 75% sheen coverage, the second a 0.10km x 0.8km (0.08 km2) area with 15% sheen coverage and the third a 0.10km x 1.40 km (0.14 km2) area with 15% sheen coverage. All three sheen areas were made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.0.15 m3 and Max 0.111 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #68 Date 30/04/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 29th – 08h00

Date : 29th april 2012 Flight #66 Wheels up : 0751 (BST) Wheels down : 1053 (BST)

Weather conditions : The weather conditions on-scene during the overflight were sunny, with good visibility of 10 nm, a 25 knot north- easterly wind (045°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 2.34km x 2.43km (5.69 km2) area with 20% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 1.32km x 1.13km (1.49 km2) area with 15% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.05 m3 and Max 0.41 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #67 Date 29/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 28th – 14h00

Date : 28th april 2012 Flight #65 Wheels up : 1334 (BST) Wheels down : 1640 (BST)

Weather conditions : The weather conditions on-scene during the overflight were sunny, with good visibility of 10 nm, a 15 knot northerly wind (010°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 1.00km x 1.18km (1.18 km2) area with 60% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 6.70km x 1.37km (9.18 km2) area with 25% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.12 m3 and Max 0.90 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #66 Date 29/04/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 28th – 08h00

Date : 28th april 2012 Flight #64 Wheels up : 0802 (BST) Wheels down : 1123 (BST)

Weather conditions : The weather conditions on-scene during the overflight were sunny, with good visibility of 10 nm, a 16 knot north-north-easterly wind (035°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 6.95km x 0.55km (3.82 km2) area with 45% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 8.06km x 2.74km (22.08 km2) area with 18% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.23 m3 and Max 1.71 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #65 Date 28/04/2012 Time on-scene : 1445 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 27th – 14h00

Date : 27th april 2012 Flight #63 Wheels up : 1352 (BST) Wheels down : 1704 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair, with good visibility of 10 nm, a 10 northerly wind (340°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 3.20km x 1.77km (5.69 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 4.62km x 0.68km (22.08 km2) area with 50% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.15 m3 and Max 1.15 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #64 Date 28/04/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 27th – 08h00

Date : 27th april 2012 Flight #62 Wheels up : 0800 (BST) Wheels down : 1107 (BST)

Weather conditions : The weather conditions on-scene during the overflight were fair, with good visibility of 9 nm, a 20 northerly wind (340°) and calm seas.

Quantification : The quantification showed two sheen bodies. The first involved a 4.2km x 0.8km (3.36 km2) area with 35% sheen coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). The second one involved a 2km x 1.2km (2.4 km2) area with 40% sheen coverage, made up of 100% silver sheen (in accordance with the BONN agreement oil appearance code). Calculated volumes adding up both sheen bodies: Min 0.09 m3 and Max 0.64 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #63 Date 27/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

April 26th : no flights due to ceilling too low __________________________________________________________________________________________

Over Flight Report – April 25th – 14h00

Date : 25th april 2012 Flight #61 Wheels up : 1400 (BST) Wheels down : 1727 (BST)

Weather conditions : The weather conditions on-scene during the overflight were poor, with low visibility of 5-6 nm, a 10 knot easterly wind (100°) and rough seas.

Quantification : The quantification showed a 21.023km x 8.499km (178.6744 km2) slick area with 12% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.86 m3 Max 6.43 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #62 Date 26/04/2012 Time on-scene : 0930 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 25th – 08h00

Date : 25th april 2012 Flight #60 Wheels up : 0804 (BST) Wheels down : 1118 (BST)

Weather conditions : The weather conditions on-scene during the overflight were poor, with low visibility of 2 nm, a 28-30 knot easterly wind (060°) and rough seas.

Quantification : The quantification showed a 6.493km x 3.323km (21.58 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.069 m3 Max 0.528 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #61 Date 25/04/2012 Time on-scene : 1430 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 24th – 15h00

Date : 24th april 2012 Flight #59 Wheels up : 1414 (BST) Wheels down : 1719 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10 nm, a 8 to 10 knot easterly wind (90°) and moderate seas.

Quantification : The quantification showed a 17.189km x 12.983km (223.2 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.714 m3 Max 5.356 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #60 Date 25/04/2012 Time on-scene : 0900 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 24th – 08h00

Date : 24th april 2012 Flight #58 Wheels up : 0803 (BST) Wheels down : 1127 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10 nm, a 14 knot south-easterly wind (130°) and moderate to calm seas.

Quantification : The quantification showed a 14.18km x 11.251km (159.5 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.51 m3 Max 3.828 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #59 Date 24/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 23rd – 14h00

Date : 23rd april 2012 Flight #57 Wheels up : 1400 (BST) Wheels down : 1719 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 3 nm, a 5 knot easterly wind (070°) and calm seas.

Quantification : The quantification showed a 7.359km x 4.095km (30.135 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.1205 m3 Max 0.904 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #58 Date 24/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 23rd – 09h00

Date : 23rd april 2012 Flight #56 Wheels up : 0834 (BST) Wheels down : 1120 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10 nm, a 8 knot easterly wind (110°) and calm seas.

Quantification : The quantification showed a 18.164km x 5.127km (93.1 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.298 m3 Max 2.235 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #57 Date 23/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 22nd – 14h00

Date : 22nd april 2012 Flight #55 Wheels up : 1404 (BST) Wheels down : 1635 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10 nm, a 15-20 knot easterly wind (070°) and moderate seas.

Quantification : The quantification showed a 11.105km x 3.642km (40.444 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.1617 m3 Max 1.2133 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #56 Date 23/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 22nd – 08h00

Date : 22nd april 2012 Flight #54 Wheels up : 0802 (BST) Wheels down : 1107 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 6 to 8 nm, a 8 knot east, north easterly wind (060°) and moderate seas.

Quantification : The quantification showed a 10.63km x 5.64km (60.01 km2) slick area with 13% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.3 m3 Max 2.34 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #55 Date 22/04/2012 Time on-scene : 1445 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 21th – 16h00

Date : 21st april 2012 Flight #53 Wheels up : 1536 (BST) Wheels down : 1807 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 6nm, a 10 knot easterly wind (120°).

Quantification : The quantification showed a 8.66km x 3.907km (33.8346 km2) slick area with 12% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.1624 m3 Max 1.2180 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #54 Date 22/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions. __________________________________________________________________________________________

Over Flight Report – April 21th – 08h00

Date : 21st april 2012 Flight #52 Wheels up : 0807 (BST) Wheels down : 1110 (BST)

Weather conditions : The weather conditions on-scene during the overflight were variable, with visibility of 3nm, a 14 knot east, south easterly wind (115°) and moderate seas.

Quantification : The quantification showed a 6.34km x 2.69km (17.07 km2) slick area with 5% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.03 m3 Max 0.26 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #53 Date 21/04/2012 Time on-scene : 1530 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 20th – 15h00

Date : 20th april 2012 Flight #51 Wheels up : 1459 (BST) Wheels down : 1732 (BST)

Weather conditions : The weather conditions on-scene during the overflight were rough, with visibility of 2nm, a 25 knot south east wind (115°) and rough seas.

Quantification : The quantification showed a 8.07km x 1.92km (15.49 km2) slick area with 7% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.043 m3 Max 0.325 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #52 Date 21/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 20th – 08h00

Date : 20th april 2012 Flight #50 Wheels up : 0815 (BST) Wheels down : 1112 (BST)

Weather conditions : The weather conditions on-scene during the overflight were rough, with visibility of 2nm, a 22 knot easterly wind (105°) and moderate seas.

Quantification : The quantification showed a 9.825km x 2.825km (27.756 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.111 m3 Max 0.833 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #51 Date 20/04/2012 Time on-scene : 1545 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 19th – 08h00

Date : 19th april 2012 Flight #49 Wheels up : 0804 (BST) Wheels down : 1109 (BST)

Weather conditions : The weather conditions on-scene during the overflight were rough, with visibility of 1 to 2nm, a 27 knot easterly wind (094°) and moderate seas.

Quantification : The quantification showed a 4.23km x 3.62km (15.31 km2) slick area with 7% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.042 m3 Max 0.321 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #50 Date 19/04/2012 Time on-scene : 1645 (BST), TBC due to weather conditions on site.
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 18th – 14h00

Date : 18th april 2012 Flight #48 Wheels up : 1346 (BST) Wheels down : 1629 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 15nm, a 15 knot easterly wind (110°) and moderate seas.

Quantification : The quantification showed a 20.0km x 4.5km (90 km2) slick area with 20% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.72 m3 Max 5.4 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #49 Date 19/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 18th – 08h00

Date : 18th april 2012 Flight #47 Wheels up : 0757 (BST) Wheels down : 1034 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 6nm, a 15 knot south easterly wind (140°) and moderate seas.

Quantification : The quantification showed a 4.68km x 6.17km (28.88 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.116 m3 Max 0.866 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #48 Date 18/04/2012 Time on-scene : 1430 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 17th – 13h00

Date : 17th april 2012 Flight #46 Wheels up : 1314 (BST) Wheels down : 1555 (BST)

Weather conditions : The weather conditions on-scene during the overflight were rough, with visibility of 3nm, a 40-45 knot southerly wind (155°) and rough seas.

Quantification : The quantification showed a 1.77km x 3.84km (6.797 km2) slick area with 7% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.019 m3 Max 1.143 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #47 Date 18/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 17th – 08h00

Date : 17th april 2012 Flight #45 Wheels up : 0804 (BST) Wheels down : 1112 (BST)

Weather conditions : The weather conditions on-scene during the overflight were rough, with visibility of 3nm, a 38 knot southerly wind (170°) and rough seas.

Quantification : The quantification showed a 3.02km x 5.59km (16.88 km2) slick area with 7% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.047 m3 Max 0.354 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #46 Date 17/04/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 16th – 13h00

Date : 16th april 2012 Flight #44 Wheels up : 1309 (BST) Wheels down : 1550 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10nm, a 15-20 knot north westerly wind (315°) and moderate seas.

Quantification : The quantification showed a 4.8km x 6.58km (31.58 km2) slick area with 12% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.152 m3 Max 1.137 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #45 Date 17/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 16th – 08h00

Date : 16th april 2012 Flight #43 Wheels up : 0758 (BST) Wheels down : 1047 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10nm, a 24 knot north westerly wind (310°) and moderate seas.

Quantification : The quantification showed a 3.22km x 5.2km (17.45 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.07 m3 Max 0.52 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #44 Date 16/04/2012 Time on-scene : tbd
Timings may vary according to weather, wind directions and landing permissions.
__________________________________________________________________________________________

Over Flight Report – April 15th – 13h00

Date : 15th april 2012 Flight #42 Wheels up : 1208 (BST) Wheels down : 1432 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10+nm, a 15 knot northerly wind (340°) and moderate seas.

Quantification : The quantification showed a 3.26km x 7.96km (25.9 km2) slick area with 6% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.06 m3 Max 0.47 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #43 Date 16/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 15th – 08h00

Date : 15th april 2012 Flight #41 Wheels up : 0754 (BST) Wheels down : 1050 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 24 knot northerly wind (355°) and moderate seas.

Quantification : The quantification showed a 3.56km x 7.13km (25.38 km2) slick area with 7% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.07 m3 Max 0.53 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #42 Date 15/04/2012 Time on-scene : 1300 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 14th – 14h00

Date : 14th april 2012 Flight #40 Wheels up : 1400 (BST) Wheels down : 1633 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of +10nm, a 20-25 knot northerly wind (015°) and moderate seas.

Quantification : The quantification showed a 3.94km x 7.83km (30.85 km2) slick area with 5% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.06 m3 Max 0.46 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #41 Date 15/04/2012 Time on-scene : 0800 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 14th – 09h00

Date : 14th april 2012 Flight #39 Wheels up : 0830 (BST) Wheels down : 1150 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 24-26 knot northerly wind (010°) and moderate seas.

Quantification : The quantification showed a 5.77km x 12.13km (69.99 km2) slick area with 6% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.17 m3 Max 1.26 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #40 Date 14/04/2012 Time on-scene : 1400 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 13th – 14h00

Date : 13th april 2012 Flight #38 Wheels up : 1400 (BST) Wheels down : 1650 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 6 knot northerly wind (360°) and moderate seas.

Quantification : The quantification showed a 7.0km x 14.2km (99.4 km2) slick area with 5% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.2 m3 Max 1.5 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #39 Date 14/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 13th – 08h00

Date : 13th april 2012 Flight #37 Wheels up : 0800 (BST) Wheels down : 1105 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 15nm, a 16 knot notherly wind (360°) and moderate seas.

Quantification : The quantification showed a 10km x 19km (190 km2) slick area with 3% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Some very small patches of brown sludge were observed immediately beneath the Elgin, these were not observed any distance from the installation. Calculated volumes : Min 0.2 m3 Max 1.7 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #38 Date 13/04/2012 Time on-scene : 1445 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 12th – 14h00

Date : 12th april 2012 Flight #36 Wheels up : 1321 (BST) Wheels down : 1654 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 18 knot westerly wind (270°) and moderate seas.

Quantification : The quantification showed a 6.2km x 14.4km (89.4 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes: Min 0.36 m3 Max 2.68 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #37 Date 13/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 12th – 09h00

Date : 12th april 2012 Flight #35 Wheels up : 0812 (BST) Wheels down : 1043 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 18 knot notherly wind (320°) and moderate seas.

Quantification : The quantification showed a 9.7km x 28km (273 km2) slick area with 15% coverage, made up of 95% silver sheen and 5% rainbow sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 2.1 m3 Max 21.7 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #36 Date 12/04/2012 Time on-scene : 1330 (BST)
Timings may vary according to weather, wind directions and landing permissions.


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Over Flight Report – April 11th – 15h00

Date : 11th april 2012 Flight #34 Wheels up : 1435 (BST) Wheels down : 1625 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 5 knot westerly wind (280°) and calm seas.

Quantification : The quantification showed a 15km x 9.5km (150 km2) slick area with 25% coverage, made up of 90% silver sheen, 5% rainbow sheen, 5% brown/orange substance. Calculated volumes in accordance with the BONN Agreement oil appearance code: Min 1.9 m3 Max 19.6 m3. Point to note is that only the hydrocarbon sheen has been used to calculate these figures, as the BONN Agreement oil appearance code does not include emulsions.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #35 Date 12/04/2012 Time on-scene : 0830 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 11th – 08h00

Date : 11th april 2012 Flight #33 Wheels up : 0755 (BST) Wheels down : 1050 (BST)

Weather conditions : The weather conditions on-scene during the overflight were clear, with a visibility of 10nm, a 3 knot south south westerly wind (200°) and calm seas.

Quantification : The quantification showed a 7.6km x 8km (60.8 km2) slick area with 3% coverage, made up of 99.5% silver sheen and 0.5% waxy deposits (emulsion). Calculated volumes in accordance with the BONN Agreement oil appearance code: Min 0.07 m3 Max 0.5 m3. Point to note is that only the hydrocarbon sheen has been used to calculate these figures, as the BONN Agreement oil appearance code does not include emulsions.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #34 Date 11/04/2012 Time on-scene : 1345 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 10th – 15h00

Date : 10th april 2012 Flight #32 Wheels up : 1456 (BST) Wheels down : 1746 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10nm, a 15 knot south westerly wind (220°) and moderate seas.

Quantification : The quantification showed a 12.8km x 3.8km (45.6 km2) slick area with 5% coverage, made up of 95% silver sheen and 5% waxy deposits (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.1 m3 Max 1.2 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #33 Date 11/04/2012 Time on-scene : 0845 (BST)
Timings may vary according to weather, wind directions and landing permissions.

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Over Flight Report – April 10th – 09h00

Date : 10th april 2012 Flight #31 Wheels up : 0825 (BST) Wheels down : 1112 (BST)

Weather conditions : The weather conditions on-scene during the overflight were poor, with visibility of 4-5nm much reduced in rain showers, a 20 knot southerly wind (170°) and moderate seas.

Quantification : The quantification showed a 4.2km x 3.4km (14.3 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.05 m3 Max 0.3 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #32 Date 10/04/2012 Time on-scene : tbc
Timings may vary according to weather, wind directions and landing permissions. 

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Over Flight Report – April 9th – 15h00

Date : 9th april 2012 Flight #30 Wheels up : 1420 (BST) Wheels down : 1720 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10nm, a 15 knot south westerly wind (220°) and moderate seas.

Quantification : The quantification showed a 8.4km x 18.7km (157 km2) slick area with 5% sheen coverage, made up of 100% silvery sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.3 m3 Max 2.4 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #31 Date 10/04/2012 Time on-scene : 09h00 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 9th – 10h00

Date : 9th april 2012 Flight #29 Wheels up : 0940 (BST) Wheels down : 1250 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 10nm, a 8 knot Easterly wind (240°) and calm to moderate seas.

Quantification : The quantification showed a 5.6km x 25km (140 km2) slick area with 7% sheen coverage, made up of 100% silvery sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.4 m3 Max 3 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #30 Date 09/04/2012 Time on-scene : 15h00 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 8th – 13h00

Date : 8th april 2012 Flight #28 Wheels up : 1300 (BST) Wheels down : 1517 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 5nm, a 20 knot south westerly wind (215°) and slight to moderate seas.

Quantification : The quantification showed a 7km x 13km (91 km2) slick area with 20% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.7 m3 Max 5.5 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #29 Date 09/04/2012 Time on-scene : tbc
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 8th – 08h00

Date : 8th april 2012 Flight #27 Wheels up : 0800 (BST) Wheels down : 1050 (BST)

Weather conditions : The weather conditions on-scene during the overflight were moderate, with visibility of 4-5nm, a 24 knot southerly wind (190°) and moderate seas.

Quantification : The quantification showed a 16km x 21km (336 km2) slick area with 10% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 1.3 m3 Max 10 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #28 Date 08/04/2012 Time on-scene : 1345 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 7th – 13h00

Date : 7th april 2012 Flight #26 Wheels up : 1249 (BST) Wheels down : 1549 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 10nm, a 10 knot Norht Westerly wind (330°) and slight to moderate seas

Quantification : The quantification showed a 500m x 25km (12.5 km2) slick area with 8% coverage, made up of 100% silver sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.03 m3 Max 0.2 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #27 Date 08/04/2012
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 7th – 08h00

Date : 7th april 2012 Flight #25 Wheels up : 0713 (BST) Wheels down : 1015 (BST)

Weather conditions : The weather conditions on-scene during the overflight were good, with visibility of 20nm, a 22 knot northerly wind (010°) and moderate 2m seas

Quantification : The quantification showed a 1.6 km x 11.5km (18.4 km2) slick area with 75% coverage, made up of 90% silver sheen and 10% brown substance that could possibly be emulsified oil (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.5 m3 Max 3.8 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #26 Date 07/04/2012 Time on scene: 1345 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 6th – 10h00

Date : 6th april 2012 Flight #24 Wheels up : 0954 (BST) Wheels down : 1254 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were good, with visibility of 10nm, a 22 knot North Westerly wind (330°) and moderate 2m seas.

Quantification : The quantification showed a 4km x 18km (72 km2) slick area with 8% sheen coverage, made up of 100% silvery sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.2 m3 Max 1.7 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #25 Date 07/04/2012 Time on-scene : TBD (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 5th – 09h00

Date : 5th april 2012 Flight #23 Wheels up : 0815 (BST) Wheels down : 1045 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were good, with visibility of 20nm and 17 knot Norht Westerly wind (275°).

Quantification : The quantification showed a 9km x 11km (99 km2) slick area with 5% sheen coverage, made up of 100% silvery (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.2 m3 Max 1.5 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #24 Date 05/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 4th – 15h00

Date : 4th april 2012 Flight #22 Wheels up : 1420 (BST) Wheels down : 1720 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were good, with visibility of 15nm and 12-15 knot Norht Easterly wind (045°).

Quantification : The quantification showed a 20km x 2km (40 km2) slick area with 30% sheen coverage, made up of 90% silver sheen and 10% rainbow sheen (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.8 m3 Max 9.2 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #23 Date 05/04/2012 Time on-scene : 0800 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 4th – 09h00

Date : 4th april 2012 Flight #21 Wheels up : 0830 (BST) Wheels down : 1125 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were good with occasional squalls, with visibility of 15nm and 27 knot Norht-Easterly wind.

Quantification : The quantification showed a 18km x 1.5km (27 km2) slick area with 50% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.54 m3 Max 4.05 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #22 Date 04/04/2012 Time on-scene : 1500 (BST)
Timings may vary according to wind directions and landing permissions.

 

 

 

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Over Flight Report – April 3rd – 14h00

Date : 3rd april 2012 Flight #20 Wheels up : 1315 (BST) Wheels down : 1615 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were good with occasional squalls, with visibility of 10nm and 25 knot Easterly wind.

Quantification : The quantification showed a 20km x 6km (120 km2) slick area with 10% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.5 m3 Max 3.6 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #21 Date 04/04/2012 Time on-scene : 0800 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 2nd – 14h00

Date : 2nd april 2012 Flight #19 Wheels up : 1315 (BST) Wheels down : 1615 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were moderate, with visibility of 8-10nm and 15 knot Northerly wind.

Quantification : The quantification showed a 17km x 0.3km (5.1 km2) slick area with 75% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.15 m3 Max 1.15 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #20 Date 03/04/2012 Time on-scene : 0730 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 2nd – 08h00

Date : 2nd april 2012 Flight #18 Wheels up : 0740 (BST) Wheels down : 1011 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were moderate, with visibility of 6-7nm and 12 knot Northerly wind.

Quantification : The quantification showed a 16km x 3km (48 km2) slick area with 30% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.58 m3 Max 4.32 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #19 Date 02/04/2012 Time on-scene : 1400 (BST)
Timings may vary according to wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – April 1st – 14h00

Date : 1st april 2012 Flight #17 Wheels up : 1320 (BST) Wheels down : 1620 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were moderate, with visibility of 3-5nm and 26 knot North-Westerly wind.

Quantification : The quantification showed a 21km x 59km (1239 km2) slick area with 2% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 1.0 m3 Max 7.4 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #18 Date 02/04/2012 Time on-scene : 0730 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – April 1st – 08h00

Date : 1st april 2012 Flight #16 Wheels up : 0720 (BST) Wheels down : 1020 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were moderate, with visibility of 3-5nm and 22 knot North-Westerly wind.

Quantification : The quantification showed a 20km x 55km (1100 km2) slick area with 2% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.88 m3 Max 6.6 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #17 Date 01/04/2012 Time on-scene : 1400 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 31st – 14h00

Date : 31st march 2012 Flight #15 Wheels up : 1340 (BST) Wheels down : 1640 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were fair, with visibility of 6nm and 22 knot Northerly wind.

Quantification : The quantification showed a 10km x 60km (600 km2) slick area with 3% sheen coverage (in accordance with the BONN Agreement oil appearance code). Calculated volumes : Min 0.72 m3 Max 5.4 m3.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #16 Date 01/04/2012 Time on-scene : 0730 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 31st – 08h00

Date : 31st march 2012 Flight #14 Wheels up : 0715 (BST) Wheels down : 0950 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were variable, with visibility of 6nm and 32 knot Northerly wind.

Quantification : The over flight showed a 35km x 3.5km (122.5km²) slick area, with 4% sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 0.20m3 Max 1.47m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #15 Date 31/03/2012 Time on-scene : 1400 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 30th – 15h00

Date : 30th march 2012 Flight #13 Wheels up : 1426 (BST) Wheels down : 1642 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were poor, with visibility of 3nm and 37 knot Westerly wind.

Quantification : Due to the exclusion zone downwind of the rig and a priority to observe the flare, quantification was not undertaken.

Next planned over-flight : Flight #14 Date 31/03/2012 Time on-scene : 0730 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 30th – 10h00

Date : 30th march 2012 Flight #12 Survey start time : 0930 (BST) Survey end time : 1014 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were poor, with variable visibility and 31 knot Westerly wind.

Quantification : Due to poor visibility and rough seas the observer was unable to sight the slick, therefore a quantification was not undertaken.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #13 Date 30/03/2012 Time on-scene : TBD (BST)
Timings may vary according to wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – March 29th – 15h00

Date : 29th march 2012 Flight #11 Survey start time : - (BST) Survey end time : - (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 1nm and a 40 knot Westerly wind.

Quantification : Due to a lack of permissions to enter the exclusion zone, poor visibility and rough seas the observer was unable to sight the slick, therefore a quantification was not undertaken.

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #12 Date 30/03/2012 Time on-scene : TBD (BST)
Timings may vary according to wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – March 29th – 11h00

Date : 29th march 2012 Flight #10 Survey start time : 1105 (BST) Survey end time : 1150 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 2nm and 30 knot Westerly wind.

Quantification : The over flight showed a 22.0km x 4.5km (99km²) slick area, with 97% sheen, 1% metallic and 2% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 0.53m3 Max 4.7m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #11 Date 29/03/2012 Time on-scene : 1515 (BST)
Timings may vary according to wind directions and landing permissions.

__________________________________________________________________________________________

Over Flight Report – March 29th – 07h00

Date : 29th march 2012 Flight #9 Survey start time : 0646 (BST) Survey end time : 0744 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 3nm and variable Westerly wind.

Quantification : The over flight showed a 38km x 7.4km (km²) slick area, with 98.5% sheen, 0.5% metallic and 1% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 1.81m3 Max 15.34m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #10 Date 29/03/2012 Time on-scene : 1330 (BST)
Timings may vary according to wind directions and landing permissions.

___________________________________________________________________________________________

Over Flight Report – March 28th – 17h00

Date : 28th march 2012 Flight #8 Survey start time : 1700 (BST) Survey end time : 1800 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 1nm and variable Westerly wind.

Quantification : The over flight showed a 21.8km x 7km (156.2km²) slick area, with 98% sheen, 1% metallic and 1% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 2.72m3 Max 24.23m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #9 Date 29/03/2012 Time on-scene : 0730 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 28th – 12h00

Date : 28th march 2012 Flight #7 Survey start time : 1151 (BST) Survey end time : 1320 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 1nm and a 12 knot North Westerly wind.

Quantification : The over flight showed a 21km x 3.2km (67.2km²) slick area, with 98% sheen, 1% metallic and 1% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 1.8m3 Max 16.011m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #8 Date 28/03/2012 Time on-scene : 1700 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 28th – 08h00

Date : 28th march 2012 Flight #6 Survey start time : 0745 (BST) Survey end time : 0920 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 2nm and a 4 knot Westerly wind.

Quantification : The over flight showed a 18km x 2.3km (41.4km²) slick area, with 98% sheen, 1% metallic and 1% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 1.29m3 Max 11.51m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #7 Date 28/03/2012 Time on-scene : 1300 (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 27th – 23h00

Date : 27th march 2012 Flight #5 Survey start time : 2239 (BST) Survey end time : 2307 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 5nm and a 15 knot South Westerly wind.

The overflight was carried out during the hours of darkness however an Infra-Red Camera was used to assist with the observations

Next planned over-flight : Flight #6 Date 28/03/2012 Time on-scene : First light
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 27th – 14h00

Date : 27th march 2012 Flight #4 Survey start time : 1330 (BST) Survey end time : 1510 (BST)

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 5nm and a 15 knot South Westerly wind.

Quantification : The over flight showed a 11.02km x 1.20km (13.22km²) slick area, with 95% sheen, 2% metallic and 3% other sheen coverage (in accordance with the BONN agreement oil appearance code). Calculated volumes: Min 0.91m3 Max 8.50m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #5 Date 28/03/2012 Time on-scene : To be confirmed (BST)
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 26th – 08h00

Date : 26th march 2012 Flight #3 Survey start time : 0747 BST Survey end time : 0913 BST

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 2nm and a 4 knot westerly wind.

Quantification : The over flight showed a 5.05km x 1.57km (7.93km²) slick, with 90% sheen and 5% metallic oil appearance (in accordance with the BONN agreement oil appearance code). Min 0.57m3 Max 5.49m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #4 Date 27/03/2012 Time on-scene : 1600 BST
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 26th – 16h00

Date : 26th march 2012 Flight #2 Survey start time : 1515 BST Survey end time : 1652 BST

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 2nm and a 12 knot westerly wind.

Quantification : The over flight showed a 1.85km x 7.41km (13.7km²) slick, with 85% sheen and 10% metallic oil appearance (in accordance with the BONN agreement oil appearance code). Min 2.56m3 Max 25.21m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #3 Date 27/03/2012 Time on-scene : 0730 BST
Timings may vary according to wind directions and landing permissions.

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Over Flight Report – March 26th – 07h00

Date : 26th march 2012 Flight #1 Survey start time : 0624 BST Survey end time : 0850 BST

Weather conditions : The weather conditions encountered whilst on-scene were calm, with visibility of 5nm and a 12 knot westerly wind..

Quantification : The over flight showed a 1.39km x 11.11km (15.43km²) slick, with 10% sheen and 15% metallic oil appearance (in accordance with the BONN agreement oil appearance code). Min 2.91m3 Max 29.05m3

This estimation is based on the flight path flown and observations made by the flight crew.

Next planned over-flight : Flight #2 Date 26/03/2012 Time on-scene : 1600 BST
Timings may vary according to wind directions and landing permissions.

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