Referenced Items are not available for this document.
The effects of soil surface roughness play a significant role in the microwave emission from the surface. Therefore, a good parameterization of the effects is a prerequisite for retrieving surface soil moisture information. With recent physical model developments, the advanced integral equation model (AIEM) has been proven to provide accurate representation over a wide range of surface-roughness conditions. We evaluated the capability of the AIEM model in simulating multiangular surface emission signals in comparison with a field experiment data set. A simplified multiangular surface emission model was developed based on simulated database using the AIEM model. Based on the parameterized model, an inversion procedure was developed using dual-polarization microwave brightness temperatures to retrieve soil moisture. Two data sets were used to test the inversion algorithm, and the accuracies in root-mean-square error were about 4% for incidence angles from 20?? to 50??. This new simple model is suitable for soil moisture retrieval from future L-band satellite data.
Published in:
Geoscience and Remote Sensing Letters, IEEE
(Volume:7
,
Issue:
1
)
Date of Publication: Jan. 2010
- Page(s):
- 127 - 130
- ISSN :
- 1545-598X
- INSPEC Accession Number:
- 11054275
- Digital Object Identifier :
- 10.1109/LGRS.2009.2028443
- Product Type:
- Journals & Magazines
- Date of Publication :
- 11 September 2009
- Date of Current Version :
- 12 January 2010
- Issue Date :
- Jan. 2010
- Sponsored by :
- IEEE Geoscience and Remote Sensing Society
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