Construction and early warning of TVDI model in the condition monitoring of arid corridor in Hengyang and Shaoyang

doi:10.13474/j.cnki.11-2246.2019.0162

Abstract

Abstract:

This paper introduces the acquisition of surface temperature (LTS), vegetation index (NDVI), data processing method and TVDI preparation in the monitoring of the conditions of arid corridors in Hengyang and Shaoyang city.Then, we use AHP to build and predict drought TVDI model, and build a suitable TVDI model and temperature, linear regression TVDI prediction model between relative humidity,and predict risk probability and disaster loss of drought risk.

Key words: dry crridor of HengYang and ShaoYang city, monitoring of geographical conditions, TVDI index, model, construction and early warning

CLC Number:

P237

LONG Chengshi, WANG Hui. Construction and early warning of TVDI model in the condition monitoring of arid corridor in Hengyang and Shaoyang[J]. 测绘通报, 2019, 0(5): 116-120.

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