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以大兴安岭地区为研究区域,利用MODIS合成产品数据MOD11/1KM和MOD13Q1获取的陆地表面温度(Ts)和归一化植被指数(NDVI)构建TS-NDVI特征空间,在此基础上计算温度植被干旱指数(TVDI)作为土壤湿度指标,结合实际反演验证大兴安岭地区2008年3月～4月16天的土壤湿度与森林火灾的关联性,在此基础上将TDVI纳入森林火灾保险费探讨范畴。
Taking Daxinganling area as study area, the TS-NDVI feature space was constructed by using the surface temperature (Ts) and normalized vegetation index (NDVI) obtained from the MODIS synthetic product data MOD11 / 1KM and MOD13Q1. On this basis, the temperature and vegetation drought index (TVDI) as the index of soil moisture, combined with the actual inversion to verify the correlation between soil moisture and forest fire in March-April 2008 in Daxing’anling region. Based on this, TDVI was included in the exploration of forest fire insurance premium.