MODIS 250-meter vegetation index (2000-2016)

Vegetation index is a key parameter reflecting changes in vegetation phenology. Vegetation index data with high temporal and spatial resolution can provide reliable data support for global change research.Currently, MODIS satellite data products are an important source of data for obtaining vegetation indices. MOD13Q1 provides Vegetation Index (VI) values on a per-pixel basis. There are 2 main vegetation layers.The first is the Normalized Difference Vegetation Index (NDVI) and the second is the Enhanced Vegetation Index (EVI).Taking 17 key nodes as research areas, based on the MOD13Q1 data from 2000 to 2016, the NDVI and EVI data of vegetation in different regions were cut and estimated, and finally the key node area 2000-2016 16-day 100-meter vegetation was obtained. Index data.