Deriving soil moisture with the combined L-band radar and radiometer measurements
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Entekhabi_Deriving Soil.pdf
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162.06 KB
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Checksum (MD5)
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Author(s)
Shi, Jiancheng
Chen, K. S.
Tsang, L.
Jackson, Thomas J.
Njoku, Eni G.
Van Zyl, J.
O'Neill, Peggy E.
Entekhabi, Dara
Johnson, J.
Moghaddam, Mahta
Date Issued
December 2010
Journal
Proceedings of the 2010 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Publisher
Institute of Electrical and Electronics Engineers
Citation
Jiancheng Shi et al. “Deriving soil moisture with the combined L-band radar and radiometer measurements.” Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International. 2010. 812-815.© 2011 IEEE.
Version
Final published version
Abstract
In this study, we develop a combined active/passive technique to estimate surface soil moisture with the focus on the short vegetated surfaces. We first simulated a database for both active and passive signals under SMAP's sensor configurations using the radiative transfer model with a wide range of conditions for surface soil moisture, roughness and vegetation properties that we considered as the random orientated disks and cylinders. Using this database, we developed 1) the techniques to estimate surface backscattering and emission components and 2) the technique to estimate soil moisture with the estimated surface backscattering and emission components. We will demonstrate these techniques with the model simulated data and its validation with the airborne PALS image data from the soil moisture SGP'99 and SMEX'02 experiments.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1109/IGARSS.2010.5652424
