Google Earth Engine（GEE）——MOD13A1_EVI/NDVI影像最大值合成法下载
实验数据：MOD13A1.006 Terra Vegetation Indices 16-Day Global 500m
Resolution
500 meters
Bands Table
| Name | Description | Min | Max | Units | Wavelength | Scale |
|---|---|---|---|---|---|---|
| NDVI | Normalized Difference Vegetation Index | -2000 | 10000 | 0.0001 | ||
| EVI | Enhanced Vegetation Index | -2000 | 10000 | 0.0001 |
这里影像最后需要除以10000以归一化EVI，使其成为归一化的标准指数
var hh= ee.FeatureCollection("users/bqt2000204051/shanxijie");//定义一个变量数字作为循环的次数时间范围的界定var years = ee.List.sequence(2000, 2020);years.evaluate(function(y) { y.map(function(y) { var start = ee.Date.fromYMD(y, 1, 1); var stop = ee.Date.fromYMD(y, 12, 31); var scol= ee.ImageCollection("MODIS/006/MOD13A1").select("E