Improving oil spill trajectory modelling in the Arctic

Marine Pollution Bulletin
Tor NordamMark Reed

Abstract

As petroleum development and other activities move further north, the potential for oil spills in ice-covered waters is of great concern. As a tool for contingency planning and forecasting during response, oil spill models play a key role. With the development of new, high-resolution coupled ice-ocean models, better predictions of sea ice are becoming available. We have updated the OSCAR oil spill model to use sea-ice velocity and coverage fields from coupled ice-ocean models to improve simulation of oil fate and transport in ice-covered waters. We describe the implementation of oil transport in the presence of ice, and demonstrate the improvement by considering three case studies. We find clear improvement when taking ice velocity from a coupled ice-ocean model into account, compared to a heuristic model that uses surface current and wind velocity. The difference is found to be especially important in a response situation near the marginal ice zone.

References

Mar 11, 2015·Marine Pollution Bulletin·Øistein JohansenNils Rune Bodsberg
Aug 18, 2016·Marine Pollution Bulletin·Liv-Guri FaksnessStein Erik Sørstrøm

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