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Intissar Keghouche¹
L. Bertino ^1,2

(1) Nansen Environmental and Remote Sensing Center (NERSC), Bergen, Norway
(2) Mohn-Sverdup Center for Global Ocean Studies and Operational Oceanography, Bergen, Norway

Main authors appear in bold

Local and detailed sea ice information, including ice drift, iceberg drift, ice concentration, ice thickness, will in the future, be essential for safe navigation and operations in the Barents and Kara Seas. To support these needs a regional high-resolution coupled ice-ocean model has been established for the Barents and Kara Seas with a grid cell of about 5 km resolution. The model system consists of Hybrid Coordinate Ocean Circulation Model (HYCOM), coupled to NERSC ice model based on the Elastic Visco Plastic (EVP) rheology by Hunke and Dukowicz (1997) for the dynamic part. It uses atmospheric forcing data from the European Center for Medium range Weather Forecasting (ECMWF). The boundary conditions are given by TOPAZ, forecasting system for the Atlantic and the Artic Ocean. The iceberg drift trajectory is calculated using an eulerian forward scheme. The model is validated against a collection of western Russian hydrographic database gathered by the INTAS project "The Nordic Seas" and compared favorably with remotely sensed ice concentrations. We will focus on the the relative importance of the dynamic interaction between an iceberg with the atmosphere, the ocean and its surrounding sea-ice dynamics to reproduce the observed iceberg-drifts patterns.

Poster presentation

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