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Description

The AMSR/ADEOS-II L1A Raw Observing Counts (AMSR-L1A) data set was processed from Level 0 science packet data by the JAXA Earth Observation Center (EOC) in Japan.

Version Description

The improved Version 3 AMSR-L1A product features empirical corrections to the co-registration parameters A1 and A2, and an updated parameter file used for correcting the AMSR 89 GHz position information. As a result, Version 3 AMSR-L1A data provide improved accuracy for the following: latitude and longitude, land/ocean flags, earth incidence angle, earth azimuth angle, sun azimuth angle, and sun elevation angle.

Product Summary

Platforms
ADEOS-II
Instruments
AMSR
Spatial Extent

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

Spatial Resolution
5 Kilometers to 50 Kilometers x 5 Kilometers to 50 Kilometers
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2003-04-02 to 2003-10-24
Concept ID
C3958919368-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
5777
Processing Level
1A
Published
Science Keywords
Sensor Counts

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

Japan Aerospace Exploration Agency (JAXA). (2014). AMSR/ADEOS-II L1A Raw Observation Counts, Version 3 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ADEOS-II/AMSR/AMSR-L1A.003 Date Accessed: 2026-01-28

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