Research Papers

Snow wetness mapping using advanced synthetic aperture radar data

[+] Author Affiliations
Gulab Singh, G. Venkataraman

IIT Bombay

J. Appl. Remote Sens. 1(1), 013521 (July 13, 2007). doi:10.1117/1.2768622
History: Received December 23, 2006; Revised April 27, 2007; Accepted July 8, 2007; July 13, 2007; Online July 13, 2007
Text Size: A A A

Abstract

The main objective of the study is to estimate snow wetness using advanced synthetic aperture radar alternative polarization single look complex data. A software has been developed for backscattering coefficient image generation and advanced synthetic aperture radar, single look complex data have been processed for backscattering coefficient image generation for dual (HH and VV) polarization data. Incidence angle image was extracted from the advanced synthetic aperture radar header data using interpolation method. These mages were multi-looked 5 times in azimuth and 1 time in range direction. Multi-looked backscattering image was despeckled using Frost filter technique. Advanced synthetic aperture radar backscattering coefficient image has been calibrated and processed into terrain corrected image in Universal Transverse Mercator (UTM), zone 43 north and WGS-84 datum map projection using ERDAS imagine software. In this study, we have used an integral equation method based inversion model for snow wetness estimation. The combined correlation coefficient between measured and estimated snow wetness was observed to be 0.89 at 95% confidence interval at Dhundi observatory and individual correlation coefficient between both measurements were observed as 0.78, 0.68,0.6 and 0.66 for 24th Feb., 27th Feb., 4th March, and 7th March, 2006 respectively at 95% confidence interval and average absolute error 2.52%. The snow wetness range varies from 0-15% by volume.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Gulab Singh and G. Venkataraman
"Snow wetness mapping using advanced synthetic aperture radar data", J. Appl. Remote Sens. 1(1), 013521 (July 13, 2007). ; http://dx.doi.org/10.1117/1.2768622


Figures

Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.