- Sea Ice
- Arctic: NoneN - NoneN, NoneE - NoneE
The ASCAT level 3 product contains, for both north and south poles,
polar stereographic 12 and 25 km resolution grids of backscatter
coefficient from the ASCAT scatterometer over sea-ice. The incidence-
adjusted backscatter maps (40Â° incidence) are built from swath
sigma-naught data (from EUMETSAT Level 2B product) averaged over one
day. The ASCAT radar backscattering properties enable the monitoring of
sea-ice extent and edges (by discriminating open water from sea-ice) but
also the categorization of polar sea-ice as : multi-year ice, first-year
ice. The product includes for each pole the following daily maps :
sea-ice backscatter at 40Â° incidence (with/without water mask), number
of data/warnings, normalized standard deviation (sea-ice/water
discrimination). The dataset starts at the beginning of the ASCAT mission.
We thanks the EUMETSAT which distributes the ASCAT/MetOp Level 2B data.
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