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Remote Sensing Technology and Application  2008, Vol. 23 Issue (4): 385-388    DOI: 10.11873/j.issn.1004-0323.2008.4.385
article     
Research on Copolarized Correlation Characteristic fromBodunqi Alluvial Fan Using Full-polarized SAR Data
ZHANG Lu,GUO Hua-dong,LIAO Jing-juan,HAN Chun-ming
(Laboratory of Digital Earth Sciences,Center for Earth Observations and Digital Earth,Chinese Academy of Sciences,Beijing,100190,China)
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Abstract  

Paleoclimate can be extricated from alluvial fan by using full-polarized Synthetic Aperture Radar (SAR).Polarization coherence ρ  is an important parameter to characterize the ground scatterers (|ρ| is polarization coherence coefficient,the phase of ρ is phase difference).In this paper,the distribution of ρ is extricated from Bodunqi Alluvial Fan using Shuttle Imaging Radar-C (SIR-C) L band fully-polarized data.The results show that ρhhvv(ρ between Shh and Svv) can well characterize the alluvial fan.Besides,we researched the relationship between ρ and ground parameters of Bodunqi Alluvial Fan such as roughness and moisture in this paper.It indicates that the phase difference between Shh and Svv and the |ρ|  between Srr and Sll can be affected by ground parameters.

Key words:  Full-polarized SAR      Copolarized correlation characteristic      Alluvial fan     
Received:  08 January 2008      Published:  03 November 2011
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ZHANG Lu,GUO Hua-dong,LIAO Jing-juan,HAN Chun-ming . Research on Copolarized Correlation Characteristic fromBodunqi Alluvial Fan Using Full-polarized SAR Data. Remote Sensing Technology and Application, 2008, 23(4): 385-388.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2008.4.385     OR     http://www.rsta.ac.cn/EN/Y2008/V23/I4/385

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