Retrieval of Soil Moisture using SIR-C Polarimetric Data
| Autor: | K. S. Rao, Y. S. Rao, H. K. Al Jassar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Soil Moisture Retrieval
Remote sensing satellite Test site Field data Spaceborne Imaging Radar Geography Planning and Development Polarimetry Inversion (meteorology) Polarization Phase Difference Backscattering Geography Surface-Roughness Earth and Planetary Sciences (miscellaneous) Surface roughness Sir-C Water content Remote sensing |
| Zdroj: | IndraStra Global. |
| ISSN: | 2381-3652 |
| Popis: | Spaceborne Imaging Radar (SIR-C) polarimetric data acquired over Gujarat test site, India, during April and October 1994 were processed to retrieve soil moisture and surface roughness using multi-polarization techniques. Synchronous field data were collected and compared with the results obtained using SIR-C data. Indian Remote Sensing Satellite (IRS) images in visible region were used for locating groundtruth points. Multi-polarization inversion techniques are found to be sensitive to retrieval of soil moisture and surface roughness parameters. However, the accuracy is not adequate. There is a need to improve the existing inversion models to suit to the Indian agricultural fields. |
| Databáze: | OpenAIRE |
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