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Oil spills - Experience from incidents and the need for improved coastal predictions Hilde Dolva

Oil spills - Experience from incidents and the need for improved coastal predictions Hilde Dolva Senior Adviser. NCA’s main tasks. Authority under the Ministry for Fisheries and Coastal Affairs. Main tasks: Piloting and Vessel Traffic Services (VTS) Navigational Aids

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Oil spills - Experience from incidents and the need for improved coastal predictions Hilde Dolva

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  1. Oil spills - Experience from incidents and the need for improved coastal predictions Hilde Dolva Senior Adviser

  2. NCA’s main tasks Authority under the Ministry for Fisheries and Coastal Affairs. Main tasks: • Piloting and Vessel Traffic Services (VTS) • Navigational Aids • Construct, improve and maintain shipping lanes and fishing harbours, transport-planning activities • Acute pollution – at sea and onshore • Manage governmental oil spill response – primarily spills from vessels • Co-ordinate the national contingency • Regulatory authority for industry and municipal oil spill response operations

  3. Geographical features: North - South: 1752 km Coastline: 80 000 km Climatic variations form arctic in the north to coastal in the south. EEZ approx 2 mill. km2 Petroleum industry: Production 3 mill. bbl./day 90 % is exported, 3rd largest exporting country Exploration and production starting in the Barents Sea. Large shipping industry And Increasing traffic off the Norwegian coast Norway in a nutshell Norwegian Coastal Administration, Department for Emergency Response

  4. Some incidents in Norway…. Green Ålesund 2000 Rocknes 2004 John R 2000 Server 2007 Godafoss 2011 Full City 2009 Crete Cement 2008

  5. …not only oil Norwegian Coastal Administration, Department for Emergency Response

  6. National principles – counter pollution • Focus on preventive measures and risk reduction • Risk based – not “worst case” • Coordination • Private – Municipal - Governmental • Response • As close to the source of the spill as possible to reduce further pollution and achieve the best net damage reduction • Use of both mechanical measures and chemical dispersants • Continuous surveillance of response operations

  7. Pollution incidents- focus on: • Type of pollution • Sensitive areas affected/might be affected • Oil drift and spreading

  8. Norwegian Coastal Administration, Department for Emergency Response

  9. Sensitive areas http://kart.kystverket.no/

  10. Info needed • Wind • Waves • Currents • Drift • Ice • Tides

  11. Whenincidentshappens • Need data (weather forecast, oildrift) quickly, information needed to operational use (e.g.where to send oil recovery equipment) • Information integrated in maps used • The information - used in the planning for the next step

  12. Where is the oil…

  13. Predictions oildrift Godafoss Local knowledge

  14. Foto: Svein Dahlgren regiongeolog

  15. Beach cleaning- time consuming- expensiveCan it be avoided?

  16. Godafoss incident, 17 February 2011 www.kystverket.no - public information Norwegian Coastal Administration, Department for Emergency Response

  17. Full City – registrert og modellert strandpåslag

  18. Oil in ice, estimated 1.2 l oil pr 1000 m2

  19. Ice • Information must be: • detailed (grid) • updated

  20. Oil weathering

  21. Incident Godafoss 2011Estimated oil spill112 m3 Norwegian Coastal Administration, Department for Emergency Response

  22. Oil recovery budget– Full City Tømt Götavärket ? Tømt Langesund In total 2930 tons is collected (963 tons of oil) Norwegian Coastal Administration, Department for Emergency Response

  23. Oil samples • Sampling: • Thin oil • Thick oil • Oil on beaches • Birds • Oil identification What is the source/ securing evidence

  24. Sampling Spills from: vessels, illegal oil discharge, satellite observations The oils have different fingerprints Extent of damage Figurer: SINTEF

  25. Chemical dispersion - using vessel, helicopter and/or air plane

  26. Chemical dispersion • Must reduce overall environmental impact • Protect seabirds and shoreline • Can harm marin organisms • If used- e.g. Deep Water Horizon – remaining oil? Stril Poseidon, Draugen 2006

  27. New technology • Drift buoys – improved oil drift models • Operation in the darkness - oil recovery • Low temperatur/ice are limiting factors

  28. Challenges • Weather and current forecasting - linked to oil recovery possibilities • Near coast predictions – more accuracy • Currents • Ice • Transfer oil drift predictions (wms) to maps • NCA needs: • oil drift predictions during incidents • historical data for contingency planning Norwegian Coastal Administration, Department for Emergency Response

  29. Thank you for your attention! Thank you for your attention! “working to keep our coast and waters among the safest and purest in the world” Norwegian Coastal Administration, Department for Emergency Response

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