Data Set ID:

AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids, Version 3

This Level-3 gridded product (AE_SI6) includes brightness temperatures at 89.0 GHz. Data are mapped to a polar stereographic grid at 6.25 km spatial resolution. This product is an intermediate product during processing of AMSR-E Level-3 sea ice products at 12.5 km and 25 km resolution.

Version Summary:

Changes to the Version 3 algorithm for these data include:

  • Uses Version 3 of the AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures data as input
  • Improved Antarctic land mask: Includes an updated ice shelf definition created by the National Ice Center Science Department in June 2011, and an updated shoreline developed from ENVISAT and RADARSAT imagery from October 2009 to April 2010. Also, this updated version no longer uses the Level-2A land flag and only uses the updated land mask for surface type classification in the southern hemisphere sea ice concentration algorithm.
  • Inclusion of ISO lineage metadata

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Geographic Coverage

Data Set Tabs

Temporal Coverage:
  • 2002-06-01 to 2011-10-04
Temporal Resolution:
1 day
Sensor(s): AMSR-E
Spatial Coverage:
  • N: 90, S: 30.98, E: 180, W: -180

  • N: -39.23, S: -90, E: 180, W: -180

Spatial Resolution:
  • 6.25 km x 6.25 km
  • Microwave > Brightness Temperature
Data Format(s):
Data Contributor(s): Josephino 'Joey' Comiso, Thorsten Markus, Donald Cavalieri

We kindly request that you cite the use of this data set in a publication using the following citation. For more information, see Use and Copyright.

Cavalieri, D. J., T. Markus, and J. C. Comiso. 2014. AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids, Version 3. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center.

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA