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Proceedings Paper

The analysis on the inversion of the seawater intrusion based on RS: a case study of Longkou City
Author(s): Jianrong Cao; Hongjun Yu; Xingyong Xu; Yi Gao; Changhui Zhou
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Paper Abstract

Hydrosphere movement in coastal zone performs as salty and fresh water mutual function. The Longkou city coastal zone which moves in the humanity under the intervention, has initiated the large-scale sea water intrusion, and therefore was especially under severe circumstances since 1980s. Until the end of 1980s and the beginning of the 90's, the sea water intrusion zone has formed the belt which spread fast from several hundred meters to several thousand meters along the coastal zone of Longkou city. Taking the landsat TM images in 2000 as data sources, first we applied the principal components transformation and analysis to analyze the six TM wave bands, and then use the histogram equalizing to deal with them. We use the two-value approach to be possible to remove the villages and small towns, the path, the pond (fishpond), the vegetables greenhouses, the rivers, the sand very conveniently. We take wave band as the research band, TM3, TM4 and TM5, which passed through correlation coefficient confirmation. Using the principal components analysis method to determine vegetation degree of coverage, the bare land index and the green index, the humidity analyzed in turn as four factors of the sea water intrusion. Inversion model of sea water intrusion is build up with the four factors. Finally a case study on the Longkou city, the analysis is obtained that the results have a very good correlation with the field measurements, and in accordance with the extent of the intrusion is divided into four categories.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74981T (30 October 2009); doi: 10.1117/12.834589
Show Author Affiliations
Jianrong Cao, Liaocheng Univ. (China)
South China Sea Institute of Oceanology (China)
State Oceanic Administration (China)
Hongjun Yu, State Oceanic Administration (China)
Xingyong Xu, State Oceanic Administration (China)
Yi Gao, South China Sea Institute of Oceanology (China)
Yantai Institute of Coastal Zone Research for Sustainable Development (China)
Changhui Zhou, Liaocheng Univ. (China)

Published in SPIE Proceedings Vol. 7498:
MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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