Southern Great Plains 1999 Hydrology Experiment Data at UCAR/JOSS/NOAA/CODIAC

There are current and near future satellite observing systems that,
while not ideal for soil moisture measurement, can provide information
for some conditions. These systems include the Special Sensor
Microwave/Imager (SSM/I), the Tropical Rainfall Monitoring Mission
(TRMM) Microwave Imager (TMI), and the Advanced Microwave Scanning
Radiometer (AMSR). Of these instruments, AMSR holds the greatest
promise for soil moisture. Soil moisture retrieval algorithms for AMSR
have been proposed but they have not been rigorously evaluated. There
are few data sets available for this purpose. This is a critical issue
that needs to be addressed for both algorithm development and
validation. For this reason, a joint project is being initiated
between EOS IDS teams studying soil moisture processes and the EOS
AMSR-E Science Team.

http://data.eol.ucar.edu/codiac/projs?SGP99