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NASA Distributed Active Archive Center (DAAC) at NSIDC


Advanced Microwave Scanning Radiometer Sensor on the JAXA ADEOS-II Satellite

Frequently Asked Questions

1. How do I order AMSR/ADEOS-II data?

If you are a first-time user of AMSR/ADEOS-II data, you must complete a Registration Form. Once your registration form is received, it will be relayed to NASA for processing. If it is determined that you meet the criteria for a NASA-approved designated user, you will be contacted with the pertinent information to order the data. See the AMSR/ADEOS-II Data: Order Data Web page for more information.

2. What is a NASA-approved designated user?

In summary, a NASA-approved designated user is one who intends to use the data for research, application, education, or non-commercial/operational purposes for the public benefit.

3. Are any higher-level AMSR/ADEOS-II products available?

No, the AMSR/ADEOS-II L2A Global Swath Spatially-Resampled Brightness Temperatures is the highest-level AMSR product available from the ADEOS-II mission.

4. Why are AMSR/ADEOS-II data only available for nine months?

On 25 October 2003, at 8:49 a.m. (JST), JAXA discovered that ADEOS-II had been switched to light load mode due to an unknown anomaly. (Light load is a mode in which all observation equipment is automatically turned off to minimize power consumption). No further earth observation data were received after that time.