问题：NOAA的GIMMS NDVI怎么下载吗？
今天有个粉丝问到数据如何下载，按我们简单写一篇博客来分析一下，其实很简单。
数据集：GIMMS NDVI From AVHRR Sensors (3rd Generation)
Dataset Availability
1981-07-01T00:00:00 - 2013-12-31T00:00:00
Dataset Provider
Collection Snippet
Copied
ee.ImageCollection("NASA/GIMMS/3GV0")
Resolution
9277 meters
Bands Table
| Name | Description | Min | Max |
| ndvi | NDVI | -1 | 1 |
| qa | QA flag | ||
| qa Bitmask |
|
||
代码：
var hh= ee.FeatureCollection("users/bqt2000204051/shanxijie"); var start = ee.Date.fromYMD(2000,1,1); var end = ee.Date.fromYMD(2000,12,31); var scol= ee.ImageCollection("NASA/GIMMS/3GV0") .filterBounds(hh) .filterDate(start,end); var ndvi_before =scol.qualityMosaic('ndvi').clip(hh); Map.addLayer(ndvi_before, {}, 'scolNDVI'); Export.image.toDrive({ image: ndvi_before.select('ndvi'), region:hh, scale:1000, description: "shanxi_ndvi_2000", folder: 'shanxi_NDVI', })
大家换自己的矢量区域区下载就行了，不过分辨率很低，建议大家自己把握！
