The AMSR-E Science Investigator-led Processing System (SIPS) has completed reprocessing of the AMSR-E sea ice data sets to Version 3. The following data sets are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
- AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids (Data set DOI: 10.5067/AMSR-E/AE_SI6.003)
- AMSR-E/Aqua Daily L3 12.5 km Brightness Temperature, Sea Ice Concentration, & Snow Depth Polar Grids (Data set DOI: 10.5067/AMSR-E/AE_SI12.003)
- AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids (Data set DOI: 10.5067/AMSR-E/AE_SI25.003)
Changes to the Version 3 algorithm for these data include:
- Use of the most recent version (Version 3) of the “AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures” data as input
- An improved Antarctic land mask
- Inclusion of ISO lineage metadata
The new Antarctic land mask includes an updated ice shelf definition, created by the National Ice Center Science Department in June 2011, as well as an updated shoreline developed from ENVISAT and RADARSAT imagery from October 2009 to April 2010. Also, due to inconsistencies between surface type classifications determined from a land flag in the input L2A data and surface type classifications determined from the updated land mask, this updated Version no longer uses the L2A land flag and thus only uses the updated land mask for surface type classification in the southern hemisphere sea ice concentration algorithm.
For further details and data access, please see the AMSR-E Web site at the NSIDC DAAC ( http://nsidc.org/data/amsre/index.html).
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