GIMMS NDVI is generated from several NOAA's AVHRR sensors for a global 1/12-degree lat/lon grid. The latest version of the GIMMS NDVI dataset is named NDVI3g (third generation GIMMS NDVI from AVHRR sensors).
GIMMS NDVI是由NOAA的几个AVHRR传感器为全球1/12度的纬度/网格生成的。最新版本的GIMMS NDVI数据集被命名为NDVI3g(第三代GIMMS NDVI来自AVHRR传感器)。
Dataset Availability
1981-07-01T00:00:00 - 2013-12-31T00:00:00
Dataset Provider
Collection Snippet
ee.ImageCollection("NASA/GIMMS/3GV0")
使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
Resolution
9277 meters
Bands Table
Name | Description | Min | Max |
---|---|---|---|
ndvi | NDVI | -1 | 1 |
qa | QA flag | ||
qa Bitmask | Bits 0-2: QA flag values 1: Good value2: Good value3: NDVI retrieved from spline interpolation4: NDVI retrieved from spline interpolation, possibly snow5: NDVI retrieved from average seasonal profile6: NDVI retrieved from average seasonal profile, possibly snow7: Missing data |
引用:
This dataset is in the public domain and is available without restriction on use and distribution. See NASA's Earth Science Data & Information Policy for additional information.
代码:
var dataset = ee.ImageCollection('NASA/GIMMS/3GV0')
.filter(ee.Filter.date('2013-06-01', '2013-12-31'));
var ndvi = dataset.select('ndvi');
var ndviVis = {
min: -1.0,
max: 1.0,
palette: ['000000', 'f5f5f5', '119701'],
};
Map.setCenter(-88.6, 26.4, 1);
Map.addLayer(ndvi, ndviVis, 'NDVI');