Analysis of envisat ASAR coherence images acquired over permanent frozen area in Qinhai-tibetan plateau

Chou Xie; Zhen Li; Xinwu Li

doi:10.1117/12.748280

14 November 2007 Analysis of Envisat ASAR coherence images acquired over permanent frozen area in Qinhai-Tibetan Plateau

Chou Xie, Zhen Li, Xinwu Li

Author Affiliations +

Proceedings Volume 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications; 679011 (2007) https://doi.org/10.1117/12.748280
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

The permafrost and the seasonal frozen ground cover an extensive area in Qinhai-Tibetan Plateau. The surface displacement by seasonally freezing bulge and thawing subsidence are main hazards for engineering construction in permafrost regions. For detecting the subsidence at permanent frozen area, we try to study the interferometric method of monitoring the deformation at permafrost area using PS and SBAS technique with time-series EnviSat ASAR data. The characteristics of coherence at permanent frozen area about season change of difference object on the ground and inherent reason is important factor for the change detection and selection of stable scatters. This paper studies coherence characteristics of different ground objects at permanent frozen area., useing 13 scenes time-series ASAR data from Jan. 2004 to June 2006 at the Beiluhe test site in the Qinhai-Tibetan Plateau. The coherence characteristics showed big difference, which are the fundamental for permafrost subsidence detecting using SAR interferometry in the Qinhai- Tibetan Plateau.

Citation Download Citation

Chou Xie, Zhen Li, and Xinwu Li "Analysis of Envisat ASAR coherence images acquired over permanent frozen area in Qinhai-Tibetan Plateau", Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 679011 (14 November 2007); https://doi.org/10.1117/12.748280

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