| OVERVIEW |
This dataset is generated in the framework of the IGLOOS project (Identification des Glaces Oceaniques par Observations Satellitaires) and is supported by the ESA/GMES PolarView project.
Sea ice drift is estimated by comparing sea ice backscatter maps and/or sea ice brightness temperature maps obtained at different time-intervals ( 2, 3, 6 days). When both radiometer and scatterometer derived drift vectors are available, a denser and more reliable merged field is produced over the whole Arctic Ocean. The time window when drift vectors can be correctly estimated is thus widened. No interpolation is performed.
The nominal sea ice drift product is generated daily from the 85 GHz brightness temperature maps of the SSM/I provided by the National Snow and Ice Data Center (NSIDC, Boulder, Colorado) and from the SeaWind /QuikSCAT backscatter data provided by NASA/PODAAC (Pasadena, California).Every month, thirty day long drift estimations are computed when the corresponding vectors are available.
An experimental higher resolution, but radiometer only, product is available using the daily 87 GHz brightness temperature maps of the AMSR-E provided by the University of Bremen (Germany).
The geographic coverage, the projection and the grid size are compatible with the NSIDC SSM/I data and with the scatterometer backscatter maps produced by IFREMER.
More information about the methods, quality , products and related references can be found in the User's Manual, available at: ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/psi-drift/documentation/.
The drift fields can be downloaded at: at ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/psi-drift/
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| PARAMETERS GROUP |
| (from BODC) |
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| PARAMETERS
(parameter, unit, convention)
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- eastward_sea_ice_velocity,m s-1,CF
- northward_sea_ice_velocity,m s-1,CF
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