摘要
利用MODIS合成产品数据MOD11A2和MOD13A2获取的归一化植被指数(NDVI)和陆地表面温度(LST)构建Ts-NDVI特征空间,并把该特征空间计算的温度植被干旱指数(TVDI)作为土壤湿度指标。利用该指标反演伊犁博州地区6—8月3个月份每8d的土壤湿度。然后将土壤湿度分为5级,进而得到该时段伊犁博州地区土壤湿度空间分布特征。
Ts-NDVI feature space was constructed by combining 8-day composite MODIS temperature product MOD11A2 with 16-day composite MODIS NDVI product MOD13A2. Temperature Vegetation Dryness Index （TVDI） which is one of indicators of soil moisture was obtained. Every 8-day soil moisture data from June to August in Yili and Bozhou were retrieved by using the TVDL Soil moisture was classified as 5 levels, and then the distribution of soil moisture in Yili and Bozhou at this period was obtained.
出处
《沙漠与绿洲气象》
2009年第3期12-16,共5页
Desert and Oasis Meteorology
基金
新疆大学绿洲生态教育部重点实验室研究基金计划项目(XJDX0201-2008-07)
中国沙漠基金(Sqj200510)
