AMSR/ADEOS-II L1A Raw Observation Counts, Version 2
Data set id:
AMSR-L1A
DOI: 10.5067/ADEOS-II/AMSR/AMSR-L1A.002
There is a more recent version of these data.
Version Summary
Version Summary
This improved algorithm features empirical corrections to the ADEOS-II scan azimuth and satellite flight direction. With corrected sun azimuth, sun elevation, earth azimuth, and earth incidence angles, the geometric accuracy of AMSR 89 GHz data improved to within 2 km, compared to Version 1 AMSR-L1A data.
Overview
The Advanced Microwave Scanning Radiometer (AMSR) instrument on the Japan Aerospace Exploration Agency's (JAXA) Advanced Earth Observing Satellite-II (ADEOS-II) provided global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of global water and energy cycles. The AMSR/ADEOS-II L1A Raw Observation Counts (AMSR-L1A) data set was processed from Level 0 science packet data by the JAXA Earth Observation Center (EOC) in Japan. Each half-orbit data granule consists of observation counts, antenna temperature coefficients, offsets for calculating antenna temperatures, calibration temperature counts, land/ocean flags, time, latitude, longitude, and navigation fields in Hierarchical Data Format (HDF).
AMSR is a conical scan sensor that sweeps the surface of the Earth at about ±90 degrees centered at the direction of the satellite flight. The swath width is about 1600 km. It measures horizontally and vertically polarized radiance at 6.9, 10.65, 18.7, 23.8, 36.5, and 89.0 GHz; and vertically polarized radiance at 50.3 and 52.8 GHz. AMSR collected 290 data points per scan for the 6 GHz to 36 GHz channels and 580 data points per scan for the 89 GHz channel. Data are available via FTP.
Parameter(s):
SENSOR COUNTS
Platform(s):
ADEOS-II
Sensor(s):
AMSR
Data Format(s):
HDF-EOS2
Temporal Coverage:
28 January 2003 to 24 October 2003
Temporal Resolution:
- 50 minute
Spatial Resolution:
- Not Specified
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
This data set has been retired. There is a more recent version of these data.
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