SMEX02 Iowa Satellite Vegetation and Water Index (NDVI and NDWI) Data, Version 1

This data set consists of Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) data, derived from Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper plus (ETM+) imagery.

本数据集包含归一化差分植被指数（Normalized Difference Vegetation Index，NDVI）与归一化差分水体指数（Normalized Difference Water Index，NDWI）两类数据，二者均由陆地卫星5号专题制图仪（Landsat 5 Thematic Mapper，TM）及陆地卫星7号增强型专题制图仪加（Landsat 7 Enhanced Thematic Mapper plus，ETM+）的影像数据衍生得到。