Study on demarcation standards of flood disaster counties depending on remote sensing data

  Objective   To explore the demarcation standards of flood disaster counties according to the analysis result of remote data, and to provide scientific basis for policy decision of flood prevention and relief.

  Methods   To analyze and choose the demarcation indicators of flood disaster counties.According to the result of three times remote sensing data of Jiangsu province in 1998 by SAS statistic software, the demarcation standards of flood disaster counties were formed.

  Results   All the flood disaster counties of Jiangsu province could be classified into three categories by the formed demarcation stadards: The countries having more than 100 thousand mu flood disaster areas more than one time belong to class one; the counties having less than 100 thousands mu flood disaster areas for three times belong to class two; the counties having no flood disaster areas for three times belong to class three.

  Conclusion   Depending on remote sensing data and geography information system technique, the flood disaster areas could be demarcated, the analysis of epidemic information could be done scientifically.