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Estimation of surface soil moisture from ASAR dual-polarized data in the middle stream of the Heihe River Basin

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Ma, J., Song, X., Li, X., Leng, P., Li, S., Zhou, F., 2013. Estimation of surface soil moisture from ASAR dual-polarized data in the middle stream of the Heihe River Basin. Wuhan Univ. J. Nat. Sci. 18, 163–170.

文献信息
Type Of Reference JOUR
Title Estimation of surface soil moisture from ASAR dual-polarized data in the middle stream of the Heihe River Basin
Authors Ma, Jianwei| Song, Xiaoning| Li, Xiaotao| Leng, Pei| Li, Shuang| Zhou, Fangcheng|
Secondary Title Wuhan University Journal of Natural Sciences
Abstract In this paper, a new approach was introduced to estimate surface soil moisture using alternating polarization (AP) data of advanced synthetic aperture radar (ASAR). First, synthetic aperture radar (SAR) backscattering characteristic of bare surface at C band was simulated using advanced integrated equation model (AIEM), and four bare surface backscattering models with different polarization were established. In addition, with simultaneous equations of the former four formulas, the surface roughness was eliminated, and models used to estimate soil moisture on bare surface were derived from simulated multipolarization and multiangle ASAR-AP data. Based on these, the best combination of polarization and incident angle was determined. Finally, soil moisture in the middle stream of the Heihe River Basin was estimated. The field measured data demonstrated that the proposed method was capable of retrieving surface soil moisture for both sparse grassland and homogeneous farmland area.
Date 2013/04/01/
Year 2013
DOI 10.1007/s11859-013-0909-9
Database Provider link.springer.com
volume 18
Issue Number 2
Start Page 163
Alternate Title1 Wuhan Univ. J. Nat. Sci.
Language en
Issn 1007-1202, 1993-4998
Url http://link.springer.com/article/10.1007/s11859-013-0909-9
Access Date 2013/11/20/03:22:02
Keywords advanced integrated equation model (AIEM)| advanced synthetic aperture radar (ASAR)| Computer Science, general| Life Sciences, general| Materials Science, general| Mathematics, general| Physics, general| roughness| soil moisture| TP 79|
file_attachments2 http://link.springer.com/article/10.1007/s11859-013-0909-9
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