View In:
ArcGIS JavaScript
ArcGIS Online Map Viewer
ArcGIS Earth
ArcMap
View Footprint In:
ArcGIS Online Map Viewer
Service Description: 温度植被干旱指数产品是基于Landsat8、Sentinel2等卫星遥感数据，采用均值合成法生成的数据产品。该产品可有效反映植被覆盖区域表层的土壤水分干旱程度及空间分布状况。产品类型为32位浮点型，值在0和1之间，数值越大表示土壤湿度越低，干旱程度越高，以TVDI作为土壤湿度分级指标，将土壤湿度分为5个层次：极干旱(0.8<TVDI≤1)、干旱(0.6<TVDI≤0.8)、正常(0.4<TVDI≤0.6)、湿润(0.2<TVDI≤0.4)、极湿润(0<TVDI≤0.2)。TVDI同时与归一化植被指数(NDVI)和地表温度(LST)相关，可用于干旱监测，尤其是监测特定年内某一时期整个区域的相对干旱程度，并可用于研究干旱程度的空间变化特征。重点应用于植被覆盖区域表层土壤水分反演。
5_大数据平台项目数据管理_标准产品/TVDI
Description: 温度植被干旱指数产品是基于Landsat8、Sentinel2等卫星遥感数据，采用均值合成法生成的数据产品。该产品可有效反映植被覆盖区域表层的土壤水分干旱程度及空间分布状况。产品类型为32位浮点型，值在0和1之间，数值越大表示土壤湿度越低，干旱程度越高，以TVDI作为土壤湿度分级指标，将土壤湿度分为5个层次：极干旱(0.8<TVDI≤1)、干旱(0.6<TVDI≤0.8)、正常(0.4<TVDI≤0.6)、湿润(0.2<TVDI≤0.4)、极湿润(0<TVDI≤0.2)。TVDI同时与归一化植被指数(NDVI)和地表温度(LST)相关，可用于干旱监测，尤其是监测特定年内某一时期整个区域的相对干旱程度，并可用于研究干旱程度的空间变化特征。重点应用于植被覆盖区域表层土壤水分反演。
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Project