NDVI change for Icy Bay, Alaska from May 2015 to May 2016

Normalized difference vegetation index (NDVI) is an indicator of vegetation health and density. High NDVI values generally correspond to dense vegetation and low NDVI...归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）是表征植被健康状态与覆盖密度的指标。较高的NDVI值通常对应着茂密的植被，而较低的NDVI……