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Vegetation effects on soil moisture estimation

Show simple item record Kim, Yunjin van Zyl, Jakob 2008-04-23T20:14:28Z 2008-04-23T20:14:28Z 2004-09-20
dc.identifier.citation IEEE International Geoscience and Remote Sensing, Anchorage, Alaska, September 20, 2004. en_US
dc.identifier.clearanceno 04-2018
dc.description.abstract Several successful algorithms have been developed to estimate soil moisture of bare surfaces. We previously reported a new algorithm using the tilted Bragg approximation. However, these algorithms are only applicable to bare surfaces. When vegetation is present, soil moisture is typically underestimated by bare surface algorithms. In order to derive soil moisture under vegetation, we have to understand the complex scattering process due to vegetation. Our main interest is to retrieve the global soil moisture information using Hydros L-band polarimetric radar data. The Hydros mission will provide the first global view of land soil moisture using L-band radar and radiometer. The unique characteristics of the Hydros data are the availability of the low resolution soil moisture information from radiometer data and the continuous time series radar data collected at the same incidence angle. In this paper, we will examine a potential inversion algorithm to retrieve soil moisture under vegetation canopies using Hydros L-band polarimetric radar data. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en_US
dc.subject soil moisture en_US
dc.subject polarimetric SAR data analysis en_US
dc.title Vegetation effects on soil moisture estimation en_US
dc.type Preprint en_US

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