This wiki is a meeting place for project participants and selected outside parties involved in the Mersea marine oil spill fate prediction demonstration activities in the Mersea Integrated Project (WorkPackage 12.3). It is hosted and maintained by the Norwegian Meteorological Institute (met.no).
What is Mersea? Look here
What are the Mersea oil spill demonstrations? Look at this presentation
How to use the wiki? Look here
The main purpose of this wiki is to exchange and disseminate information and data from the various demonstration experiments performed in the fall of 2007 and winter of 2008. These demonstrations are carried out as part of WorkPackage 12.3 of the Mersea Integrated Project. The purpose of the demonstrations is to show the benefits of using Mersea ocean forecast data in an important maritime security application, in this case oil spill fate forecasting.
Oil spill forecast service providers:
Users of oil spill forecasts:
Demonstration type: Drifter deployment for forecast validation
Start: Drifter deployment from 17 September 2007
Lead: OC-UCY
Contact: George Zodiatis (gzodiac@ucy.ac.cy)
Summary: OC-UCY will deploy surface drifters to emulate a surface oil spill in the Eastern Mediterranean south of Cyprus beginning 17 September 2007. Satellite tracking of drift positions 2-3 weeks. Perform oil spill simulations to forecast the fate of the “oil spill”. Each participant will supply oil spill forecast data and/or graphical results directly to the users or to OC-UCY. Results from all partners will be converted to a common format and presented in a common graphical tool, e.g., GoogleEarth. The forecast results will be analyzed against the observed drifter tracks and reported.
Drifters deployed 20:00Z 17.09.2007 off SW coast of Cyprus. Three drifters have been deployed at varying distances from the coast (see Deployment sites). They will be referred to as drifter North (N), drifter Middle (M) and drifter South (S) according to the deployment positions.
From George Zodiatis, 20 Sept 2007
The S drifter is drifting southeast along the periphery of the Cyprus anticyclonic eddy (Zodiatis et.al 2005) and the MEDSLIK oil spill predictions as you can see from kml are in good agreement with the trajectory of the S drifter.
The N drifter initially was drifted westward, with an anticyclonic movement. The MEDSLIK predictions shown also a westward movement but with a cyclonic movement.
The M drifter moving eastward, while the MEDSLIK predictions initially shown a large dispersion with no significant eastward or westward movement, similar to those of MF.
However, when we starting the MEDSLIK predictions on 19 Sept at 02:28, instead of 17th Sep, then the oil spill predictions at M drifting slowly eastward.
The sea currents forecasting data in the region of the N and M drifters indeed are the main reasons that the MEDSLIK oil spill predictions are not in good agreement with the trajectory of the N and M drifters. Similar situation is faced by MF predictions.
The following subsections contain links to data files that have been uploaded by providers. They may be downloaded by users by clicking on the link buttons (if you're not sure how, refer to wiki instructions). Please check the Note on GoogleEarth-friendly files.
The file names should follow a naming convention like: Producer-Model-CreationDate-forcing_data-drifterX.ext
ocucy-medslik-0709210900-drifters.kmz (drifters)
ocucy-medslik-0709240630-drifters.kmz (drifters)
ocucy-medslik-0709251302-drifters.kmz (drifters)
ocucy-medslik-0709271208-drifters.kmz (drifters)
ocucy-medslik-0709280645-drifters.kmz (drifters)
ocucy-medslik-0710030810-drifters.kmz (drifters)
ocucy-medslik-0710050732-drifters.kmz (drifters)
ocucy-medslik-0710080635-drifters.kmz (drifters)
ocucy-medslik-0710151048-drifters.kmz (drifters)
ocucy-medslik-0710191424-drifters.kmz (drifters)
ocucy-medslik-0710261125-drifters.kmz (drifters)
ocucy-medslik-0711021100-drifters.kmz (drifters)
ocucy-medslik-0711061115-drifters.kmz (drifters)
ocucy-medslik-0711230840-drifters.kmz (drifters)
ocucy-medslik-0711261153-drifters.kmz (drifters)
ocucy-medslik-0712061150-drifters.kmz (drifters)
ocucy-medslik-0712211100-drifters.kmz (drifters)
OBS! Loading met.no kml/kmz files into GoogleEarth may take a minute or more, depending on your system and network connection.
Forecasts starting at the deployment drifter positions 2007-09-17 23:00Z:
metno-od3d-20070920-mfs16med-n.kmz (drifter N, OD3D, mfs16th)
metno-od3d-20070920-mfs16med-m.kmz (drifter M, OD3D, mfs16th)
metno-od3d-20070920-mfs16med-s.kmz (drifter S, OD3D, mfs16th)
metno-od3d-20070920-merc15med-n.kmz (drifter N, OD3D, mercator15th)
metno-od3d-20070920-merc15med-m.kmz (drifter M, OD3D, mercator15th)
metno-od3d-20070920-merc15med-s.kmz (drifter S, OD3D, mercator15th)
metno-od3d-20070920-mercglob-n.kmz (drifter N, OD3D, mercator-glob)
metno-od3d-20070920-mercglob-m.kmz (drifter M, OD3D, mercator-glob)
metno-od3d-20070920-mercglob-s.kmz (drifter S, OD3D, mercator-glob)
Forecasts starting at the deployment drifter positions 2007-09-20 02:00Z:
metno-od3d-20070920-mfs16med-n-2.kmz (drifter N, OD3D, mfs16th)
metno-od3d-20070920-mfs16med-m-2.kmz (drifter M, OD3D, mfs16th)
metno-od3d-20070920-mfs16med-s-2.kmz (drifter S, OD3D, mfs16th)
metno-od3d-20070920-merc15med-n-2.kmz (drifter N, OD3D, mercator15th)
metno-od3d-20070920-merc15med-m-2.kmz (drifter M, OD3D, mercator15th)
metno-od3d-20070920-merc15med-s-2.kmz (drifter S, OD3D, mercator15th)
Forecasts starting at the drifter positions 2007-09-24 19:33Z:
metno-od3d-20070926-mfs16med-s-3.kmz (drifter S, OD3D, mfs16th)
metno-od3d-20070927-mfsbe15med-s-3.kmz (drifter S, OD3D, mfs16th Best Estimate)
metno-od3d-20070926-merc15med-s-3.kmz (drifter S, OD3D, mercator15th)
metno-od3d-20070926-mercglob-s-3.kmz (drifter S, OD3D, mercator-glob)
Forecasts starting at the deployment drifter positions 2007-09-17 23:00Z:
mf-mothy-200709172300-ecmwf2007091900-mercator20070912-drifter_N.kmz (drifter N, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy-200709172300-ecmwf2007091900-mercator20070912-drifter_M.kmz (drifter M, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy-200709172300-ecmwf2007091900-mercator20070912-drifter_S.kmz (drifter S, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy200709172300-ecmwf2007092312-mercator20070919-drifter_S.kmz (drifter S, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy200709172300-ecmwf2007092312-climatology-drifter_S.kmz (drifter S, mothy, ecmwf, climatological current, heavy crude oil)
mf-mothy200709172300-ecmwf2007092312-without-current-drifter_S.kmz (drifter S, mothy, ecmwf, wind only, heavy crude oil)
Forecasts starting at the drifter positions 2007-09-20 02:00Z:
mf-mothy200709200200-ecmwf2007092312-mercator20070919-drifter_N.kmz (drifter N, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy200709200200-ecmwf2007092312-mercator20070919-drifter_M.kmz (drifter M, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy200709200200-ecmwf2007092312-mercator20070919-drifter_S.kmz (drifter S, mothy, ecmwf, mercator15th, heavy crude oil)
Forecasts starting at the drifter positions 2007-09-24 19:33Z:
mf-mothy200709241933-ecmwf2007092512-mercator20070919-drifter_S.kmz (drifter S, mothy, ecmwf, mercator15th, heavy crude oil)
Forecasts starting at the drifter positions 2007-10-04 19:02Z:
mf-mothy200710041902-ecmwf2007101800-mercator20071010-3drifters.kmz (3 drifters, mothy, ecmwf, mercator15th, heavy crude oil)
mf-mothy200710041902-ecmwf2007101800-climatology-3drifters.kmz (3 drifters, mothy, ecmwf, climatological current, heavy crude oil)
Initial Predictions
ocucy-medslik-0709210900-cycofos-skiron1h_mfs-skiron1h-s.kmz (drifter S, medslik, cycofos60th-skiron1h and after 54th hours mfs-skiron1h)
ocucy-medslik-0709210900-mfs-ecmwf24h-s.kmz (drifter S, medslik, mfs-ecmwf24h)
ocucy-medslik-0709210900-mfs-skiron1h-s.kmz (drifter S, medslik, mfs-skiron1h)
ocucy-medslik-0709201655-cycofos-skiron1h-s.kmz (drifter S, medslik, cycofos60th-skiron1h)
ocucy-medslik-0709211904-cycofos-skiron1h-s.kmz (drifter S, medslik, cycofos60th-skiron1h, 3 releases from different positions)
ocucy-medslik-0709251100-cycofos-skiron1h_mfs-skiron1h-s.kmz (drifter S, medslik, cycofos60th-skiron1h and after 51th hours mfs-skiron1h)
ocucy-medslik-0709240700-mfs-skiron1h-m.kmz (drifter M, medslik, mfs-skiron1h)
ocucy-medslik-0709271800-mfs-skiron1h-m.kmz (drifter M, medslik, mfs-skiron1h)
ocucy-medslik-0709301845-cycofos-skiron1h-n.kmz (drifter N, cycofos60th, mfs-skiron1h)
Predictions for October
ocucy-medslik-0710022000-mfs-skiron1h-m.kmz (drifter N, medslik, mfs-skiron1h)
ocucy-medslik-0710051145-cycofos-skiron1h-m.kmz (drifter M, cycofos60th, mfs-skiron1h)
ocucy-medslik-0710081540-cycofos-skiron1h-n.kmz (drifter N, cycofos60th, mfs-skiron1h, 4 releases from different positions)
ocucy-medslik-0710181430-cycofos-skiron1h-s.kmz (drifter S, cycofos60th, mfs-skiron1h)
ocucy-medslik-0710191236-cycofos-skiron1h-s.kmz (drifter S, cycofos60th, mfs-skiron1h)
Predictions for November
ocucy-medslik-0711011200-cycofos-skiron1h-m.kmz (drifter M, cycofos60th, mfs-skiron1h)
ocucy-medslik-0711061447-cycofos-skiron1h-s.kmz (drifter S, cycofos60th, mfs-skiron1h, 7 releases from different positions)
ocucy-medslik-0711071309-cycofos-skiron1h-s.kmz (drifter S, cycofos60th, mfs-skiron1h)
ocucy-medslik-0711231520-cycofos-skiron1h-n.kmz (drifter N, cycofos60th, mfs-skiron1h)
Latest predictions (26/11/2007)
ocucy-medslik-0711261200-cycofos-skiron1h-n.kmz (drifter N, cycofos60th, mfs-skiron1h)
[Put relevant image and doc files in linked pages here]
Oildrift forecasts from HNMS:
Demonstration type: Drifter deployment for forecast validation
Start: Drifter deployment from 10 October 2007
Lead: met.no
Contact: Bruce Hackett (Bruce.Hackett@met.no), Francois Parthiot (Francois.Parthiot@le-cedre.fr)
Summary: Cedre will deploy oil monitoring buoys to emulate a surface oil spill in the Western Mediterranean south of Nice starting 10 October 2007. Perform oil spill simulations to forecast the fate of the “oil spill”. Each participant will supply oil spill forecast data and/or graphical results directly to the users or to Cedre. Results from all partners will be converted to a common format and presented in a common graphical tool, e.g., GoogleEarth. The forecast results will be analyzed against the observed drifter tracks and reported.
Drifters deployed 10.10.2007 off côte d'Azur. 8 drifters have been deployed at varying distances from the coast (see Deployment sites).
The following subsections contain links to data files that have been uploaded by providers. They may be downloaded by users by clicking on the link buttons (if you're not sure how, refer to wiki instructions).
The file names should follow a naming convention: Producer-Model/Obstype-Area-CreationDate-SeriesNumber.ext
Please check the Note on GoogleEarth-friendly files
drifter positions to 2007-10-18 06:16 kmz
drifter positions to 2007-10-22 08:36 kml
drifter positions to 2007-10-26 13:25 kmz
drifter positions to 2007-10-30 09:56 kmz
drifter positions to 2007-10-31 14:57 kmz
drifter positions to 2007-11-07 15:11 kmz
drifter positions to 2007-11-12 09:42 kmz
drifter positions to 2007-11-16 17:02 kmz
drifter positions to 2007-11-23 14:12 kmz
drifter positions to 2007-12-03 12:37 kmz
drifter positions to 2007-10-18 06:16 xls
drifter positions to 2007-10-22 08:35 xls
drifter positions to 2007-10-26 13:27 xls
drifter positions to 2007-10-30 09:57 xls
drifter positions to 2007-10-31 14:57 xls
drifter positions to 2007-11-07 15:12 xls
drifter positions to 2007-11-12 09:43 xls
drifter positions to 2007-11-16 17:03 xls
Forecasts starting at the deployment drifter positions 2007-10-10 17:05Z:
mf-mothy200710101705-aladin2007101600-mercator20071010-7drifters.kmz (7 drifters, mothy, aladin, mercator15th, animation)
mf-mothy200710101705-aladin2007101600-climatology-7drifters.kmz (7 drifters, mothy, aladin, climatological current, animation)
Forecasts starting at the drifter positions 2007-10-15 10:45Z:
mf-mothy200710151045-aladin2007101600-mercator20071010-7drifters.kmz (7 drifters, mothy, aladin, mercator15th, animation)
mf-mothy200710151045-aladin2007101600-climatology-7drifters.kmz (7 drifters, mothy, aladin, climatological current, animation)
Forecasts starting at the drifter positions 2007-10-17 21:25Z:
mf-mothy200710172125-ecmwf2007101800-mercator20071010-6drifters.kmz (6 drifters, mothy, ecmwf, mercator15th, animation)
mf-mothy200710172125-aladin2007101800-mercator20071010-6drifters.kmz (6 drifters, mothy, aladin, mercator15th, animation)
mf-mothy200710172125-aladin2007101800-climatology-6drifters.kmz (6 drifters, mothy, aladin, climatological current, animation)
All drift simulations use the OD3D oil drift model, ECMWF atmospheric forcing and ECMWF wave forcing. The only difference in forcing is the ocean forecast data.
Forecasts starting at the deployment drifter positions 2007-10-10 17:05Z
— North drifters:
metno-od3d-20071016-mfs16med-N (drifters N, OD3D-20071016, mfs16th-20071010)
metno-od3d-20071016-mfs16bemed-N (drifters N, OD3D-20071016, mfs16th best estimate)
metno-od3d-20071016-merc15med-N (drifters N, OD3D-20071016, mercator15th)
metno-od3d-20071016-mercglo-N (drifters N, OD3D-20071016, mercator-glob)
— Middle drifters:
metno-od3d-20071016-mfs16med-M (drifters M, OD3D-20071016, mfs16th-20071010)
metno-od3d-20071016-mfs16bemed-M (drifters M, OD3D-20071016, mfs16th best estimate)
metno-od3d-20071016-merc15med-M (drifters M, OD3D-20071016, mercator15th)
metno-od3d-20071016-mercglo-M (drifters M, OD3D-20071016, mercator-glob)
— South drifters:
metno-od3d-20071016-mfs16med-S (drifters S, OD3D-20071016, mfs16th-20071010)
metno-od3d-20071016-mfs16bemed-S (drifters S, OD3D-20071016, mfs16th best estimate)
metno-od3d-20071016-merc15med-S (drifters S, OD3D-20071016, mercator15th)
metno-od3d-20071016-mercglo-S (drifters S, OD3D-20071016, mercator-glob)
Forecasts starting at the deployment drifter positions 2007-10-17 21:25Z
— Drifter 60212 (N):
metno-od3d-20071016-mfs16med-60212 (drifter 60212, OD3D-20071019, mfs16th)
metno-od3d-20071016-merc15med-60212 (drifter 60212, OD3D-20071019, mercator15th)
metno-od3d-20071016-mercglo-60212 (drifter 60212, OD3D-20071019, mercator-glob)
— Drifter 60213 (N):
metno-od3d-20071016-mfs16med-60213 (drifter 60213, OD3D-20071019, mfs16th)
metno-od3d-20071016-merc15med-60213 (drifter 60213, OD3D-20071019, mercator15th)
metno-od3d-20071016-mercglo-60213 (drifter 60213, OD3D-20071019, mercator-glob)
— Drifter 75661 (S):
metno-od3d-20071016-mfs16med-75661 (drifter 75661, OD3D-20071019, mfs16th)
metno-od3d-20071016-merc15med-75661 (drifter 75661, OD3D-20071019, mercator15th)
metno-od3d-20071016-mercglo-75661 (drifter 75661, OD3D-20071019, mercator-glob)
[Put relevant image and doc files in linked pages here]
Demonstration type: Ad hoc response to an actual oil spill incident
Lead: met.no
Contact: Bruce Hackett (Bruce.Hackett@met.no)
Summary: met.no and MF perform oil spill simulations with Mersea forcing data to forecast the fate of the oil spill, comparing with Norwegian national service (met.no) as a baseline. The forecast results will be compared and analyzed against the observed oil spill drift.
In connection with loading oil from the Statfjord A loading buoy onto a tanker, raw oil was accidentally leaked into the sea on the morning of 12 December 2008. A large diameter loading hose ruptured and released approximately 4000 cubic meters of raw oil in the course of about 1 hour. The Statfjord A loading buoy is operated by StatoilHydro AS, who also had the responsibility for remedial action on the oil spill. The Norwegian Coastal Authority (KV) monitored the action in its capacity as the national authority responsible for pollution emergency response.
Weather conditions in the area were reported as severe. Shortly after the spill was stopped, the Statfjord A platform reported wind speed of 45 knots from the south measured at the flare, and wave height of about 7 meters measured visually. Other observations and numerical weather prediction analyses indicate somewhat lower values. Nonetheless, the wind and sea-state were severe enough to exceed the limits of the cleanup and retention equipment available, so that the oil spill evolved essentially untreated. The heavy seas and wind persisted for the following days, causing the slick to separate into streaks. By 14 December, the oil slick was reduced and dispersed to the point that StatoilHydro and the Norwegian authorities ceased all attempts at remedial action, and by 16 December no oil was detectable on the surface.
All drift simulations use the OD3D oil drift model.
metno_od3d200712120700-metno-nordic4 (OD3D-20071212, met.no standard forcing: HIRLAM 20km, WAM 10km, MIPOM-Nordic4, animation)
metno_od3d200712120700-ecmwf-mercglob (OD3D-20071212, forcing: ECMWF atmos/waves, Mercator-global, animation)
metno_od3d200712120700-ecmwf-mercnat (OD3D-20071212, forcing: ECMWF atmos/waves, Mercator15th-nat, animation)
metno_od3d200712120700-ecmwf-topaz (OD3D-20071212, forcing: ECMWF atmos/waves, TOPAZ-nat, animation)
metno_od3d200712120700-metno-bio4 (OD3D-20071212, met.no standard forcing: HIRLAM 20km, WAM 10km, MIPOM-Bio4, animation)
mf-mothy200712120700-ecmwf200712160000-wind-only (mothy, ecmwf, only wind forcing, animation)
mf-mothy200712120700-ecmwf200712160000-mercator200712120000 (mothy, ecmwf, mercator15th, animation)
Demonstration type: Scenario demonstration of global capability
Lead: met.no
Contact: Bruce Hackett (Bruce.Hackett@met.no)
Summary: met.no and MF perform oil spill simulations with Mersea forcing data to forecast the fate of a fictitious oil spill in the Agulhas region. The scenario is a oil spill from a large tanker, optionally including ship drift forecast.
Tanker leaks oil after a collision incident at position 31.0 deg S 31.5 deg E. Alternative 1: tanker maintains position during spill duration. Alternative 2: tanker loses power as a result of collision and comes adrift.
Leak rate: 500 m^3 / hour
Oil type: Heavy crude (Gullfaks AB)
Tanker example descriptions taken from Frontline Ltd:
| Name of example | Deadweight tonnage | Length | Beam | Draft | Freeboard | Height (KTM) |
|---|---|---|---|---|---|---|
| Nordic Apollo | 160 000 | 275 | 48 | 16 | 7 | 51 |
| Front Force | 305 000 | 330 | 60 | 21 | 5.5 | 66 |
metno-od3d-ecmwf2008032600-mercat4th (Stationary leak source: met.no oildrift, ECMWF winds & waves, Mercator4th ocean)
metno-shipdrift+od3d-ecmwf2008032600-mercat4th (Drifting tanker (like Nordic Apollo): met.no shipdrift+oildrift, ECMWF winds & waves, Mercator4th ocean)
metno-shipdrift+od3d-ecmwf2008032600-mercat4th (Drifting supertanker (like Front Force): met.no shipdrift+oildrift, ECMWF winds & waves, Mercator4th ocean)
mf-mothy200803261000-ecmwf200803260000-mercator200803190000-fixed-leakage (Stationary leak source: mothy, ecmwf, mercator4th, animation)
mf-mothy200803261000-arpege_tropique200803260000-mercator200803190000-fixed-leakage (Stationary leak source: mothy, arpege_tropique, mercator4th, animation)
mf-mothy200803261000-ecmwf200803260000-wind-only-fixed-leakage (Stationary leak source: mothy, ecmwf, wind only, animation)
mf-mothy200803261000-ecmwf200803270000-mercator200803260000-moving-leakage (Moving leak source: mothy, ecmwf, mercator4th, animation)