水系结构遥感影像特征对自然灾害的指示意义研究——以陕西省为例

STUDY ON INDIRECT INTERPRETATION KEY OF NATURAL HAZARD WITH REMOTE SENSING INTERPRETATION AND ANALYSIS OF DRAINAGE COMPOSITION——A CASE STUDY IN SHAANXI PROVINCE

以ＭＳＳ影像、ＴＭ 影像和部分航片为基本信息源， 并结合一些相关资料， 以陕西省为例， 对水系结构进行分析研究， 据其影像特征， 将陕西省水系分为陕北型、秦岭型和关中型。并进一步探讨了水系结构的影像特征对自然灾害判读、解译的重要指示意义， 并且， 利用水系结构的遥感影像特征， 有助于找出自然灾害发生发展的规律， 采取合理治理措施， 以达到防灾减灾的目的。

Taking MSS and TM false colour composition image and aerial photo as the basic information source and consulting some material, the thesis analyses the feature of remote sensing image of the drainage composition The river systems of Shaanxi is classified three types: Northern Shaanxi type , Qinling type and Guanzhong type It focus on studying the feature of remote sensing image of the drainage composition and indirect interpretation key of the material hazard with remote interpretation