Submitted to: International Geoscience and Remote Sensing Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 5/23/2000
Publication Date: N/A
Citation: N/A Interpretive Summary: None.
Technical Abstract: The Advanced Microwave Scanning Radiometer (AMSR) is a passive microwave radiometer with a frequency range from 6.9 GHz to 89 GHz. It will be flown on board the NASA Aqua satellite and the Advanced Earth Observing Satellite-II by the National Space Development Agency (NASDA) of Japan. With a large antenna, AMSR will provide the best spatial resolution of multi-frequency radiometer from space (50 km at 6.9 GHz to 5 km at 89 GHz) Currently, NASDA is developing an AMSR standard algorithm for soil moisture. The proposed algorithms by the selected principal investigators are now being carefully tested and evaluated using data from existing satellite resources. There are basically four candidate algorithms. At the time of the test, all algorithms are still under development and subject to changes. These tests used a match-up data set of in-situ soil moisture at 79 former Soviet Union agricultural fields, and satellite observations were eprovided by NASDA Earth Observation Research Center. Results showed that all algorithms have limitations and that the data set was flawed. Additional tests with better data sets will be conducted.