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Description

This data set (AE_SI6) reports average daily, 6.25 km resolution, horizontally and vertically polarized brightness temperatures (Tbs) at 89.0 GHz. Data are provided on Northern and Southern Hemisphere, polar stereographic grids. Tbs are derived from observations acquired by the Advanced Microwave Scanning Radiometer for EOS (AMSR-E).

This data set is created as an intermediate product while generating the AMSR E Level 3 12.5 km (AE_SI12) and 25 km (AE_SI25) sea ice products.

Version Description

Changes for this version include: -- Uses Version 4 of the AMSR-E/Aqua L2A Global Swath Spatially-Resampled Brightness Temperatures as input -- Data file format changed to HDF-EOS5

Product Summary

Platforms
Aqua
Instruments
AMSR-E
Spatial Extent

N: 90 S: 30.98 E: 180 W: -180

,

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

Spatial Resolution
6.25 Kilometers x 6.25 Kilometers
Spatial Reference System(s)
Multiple EPSG codes (see User Guide)
Location
NORTHERN HEMISPHERE ,
POLAR ,
SOUTHERN HEMISPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2002-06-01 to 2011-10-04
Temporal Resolution
1 Day
Concept ID
C3628298779-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
3381
Processing Level
3
Published
Science Keywords
Brightness Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Markus, T., Comiso, J. C., Boisvert, L., & Meier, W. N. (2025). AMSR-E/Aqua Daily L3 6.25 km 89 GHz Brightness Temperature Polar Grids, Version 4 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/SVVXO1WXDSLW Date Accessed: 2026-10-27

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