Research Papers

Snow porosity estimation using advanced synthetic aperture radar single look complex data analysis and its effects on backscattering coefficient

[+] Author Affiliations
Gulab Singh, V. Kumar, G. Venkataraman, Y. S. Rao

IIT Bombay

Sneh Mani

SASE,Chandigarh

J. Appl. Remote Sens. 1(1), 013522 (July 23, 2007). doi:10.1117/1.2771253
History: Received December 6, 2006; Revised April 27, 2007; Accepted July 12, 2007; July 23, 2007; Online July 23, 2007
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Abstract

This paper discusses the methodology of Synthetic Aperture Radar (SAR) data analysis for studying snow porosity and its effect on electric property of snow. ENVISAT- Advanced Synthetic Aperture Radar (ASAR) single polarized, single look complex (SLC) data have been processed for backscattering coefficient image generation. Incidence angle image has been extracted from the ASAR header data using interpolation method. These images were multi-looked 5 times in azimuth and 1 time in range direction. ASAR Backscattering coefficient images have been calibrated. The estimation of snow porosity is optimal at different incidence angles. The effect of snow porosity on snow wetness, snow density and backscattering coefficient is studied in detail. The correlation coefficient between estimated and measured porosity is observed to be 0.88 and absolute error was 0.045.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Gulab Singh ; V. Kumar ; G. Venkataraman ; Y. S. Rao and Sneh Mani
"Snow porosity estimation using advanced synthetic aperture radar single look complex data analysis and its effects on backscattering coefficient", J. Appl. Remote Sens. 1(1), 013522 (July 23, 2007). ; http://dx.doi.org/10.1117/1.2771253


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