Applications of orthophotomaps and fusion of Landsat TM, SPOT, and SAR images in the studies of the events to stop up water body and ecological environment in the Yangtze Three Gorges Project regio

Wunian Yang; Guoliang Pu; Jean-Pierre Paris; Francois Cauneau; Thierry Ranchin; Yong Li

doi:10.1117/12.417007

8 February 2001 Applications of orthophotomaps and fusion of Landsat TM, SPOT, and SAR images in the studies of the events to stop up water body and ecological environment in the Yangtze Three Gorges Project region

Wunian Yang, Guoliang Pu, Jean-Pierre Paris, Francois Cauneau, Thierry Ranchin, Yong Li

Author Affiliations +

Proceedings Volume 4151, Hyperspectral Remote Sensing of the Land and Atmosphere; (2001) https://doi.org/10.1117/12.417007
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

In this study, fusion of Landsat TM, SPOT and ERS SAR Images were done, and then an orthphotomap of the fusion image of Landsat TM453 and SPOT panchromatic image of Yunyang area, the Yangtze Three Gorges Project Region was made, which is in 1:50000 scale and up to an international standard of topographic map. With the orthphotomap, many new geological structures and disasters were identified and positioned. The biggest landslide in the Yangtze River region-JIPAZI landslide was digitized. 3D quantitatively analyzing patterns for surveying landslides and rockfalls were established with RS, GIS and GPS techniques. Through phase- separation analysis of remote sensing information field and quantitative processing of the linear structures, the relationship between geological disasters and crack structures was found out. Finally, with a synthetic analysis, these landslides and rockfalls probably to stop up river water and their environmental influence were predicted.

Citation Download Citation

Wunian Yang, Guoliang Pu, Jean-Pierre Paris, Francois Cauneau, Thierry Ranchin, and Yong Li "Applications of orthophotomaps and fusion of Landsat TM, SPOT, and SAR images in the studies of the events to stop up water body and ecological environment in the Yangtze Three Gorges Project region", Proc. SPIE 4151, Hyperspectral Remote Sensing of the Land and Atmosphere, (8 February 2001); https://doi.org/10.1117/12.417007

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