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Welcome to the Arctic Ocean thematic portal
Operator: NERSC, Norway
The TOPAZ system developed under EC Framework V is run by NERSC and
presently covers the North Atlantic, Nordic and Arctic seas. It is based on the HYCOM ocean model v2.1 and
includes a sea-ice model. It assimilates sea surface heights,
surface temperature and sea ice concentrations on a weekly basis using
the Ensemble Kalman Filter.
| Configurations |
Main characteristics |
| V1: TOPAZ2 |
Horizontal resolution 18-36 km,
started 1st Jan. 2005 interrupted on 1st Oct. 2007. |
V2: TOPAZ3,
scheduled Apr 2007 |
Horizontal resolution 11-16 km,
assimilation of ice drift. |
V3: TOPAZ3,
scheduled Apr 2007 |
Horizontal resolution 11-16 km,
assimilation of profiles in addition,
ecosystem model demonstration. |
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Arctic Ocean Sea Surface temperature and sea-ice concentrations
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Any question, any information you request, please send an e-mail to
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