The Normalized Difference Vegetation Index is generated from the Near-IR and Red bands of each scene as (NIR - Red) / (NIR + Red), and ranges in value from -1.0 to 1.0. This product is generated from the MODIS/MOD09GA surface reflectance composites.
归一化植被指数由每个场景的近红外和红色波段生成,为(近红外-红色)/(近红外+红色),数值范围为-1.0至1.0。这个产品是由MODIS/MOD09GA表面反射率合成物生成的。
Dataset Availability
2000-02-24T00:00:00 - 2017-03-30T00:00:00
Dataset Provider
Collection Snippet
ee.ImageCollection("MODIS/MOD09GA_NDVI")
Bands Table
Name | Description | Min* | Max* | Resolution |
NDVI | Normalized Difference Vegetation Index | -1 | 1 | 463.312716528 meters |
* = Values are estimated使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
代码:
var dataset = ee.ImageCollection('MODIS/MCD43A4_006_NDVI') .filter(ee.Filter.date('2018-04-01', '2018-06-01')); var colorized = dataset.select('NDVI'); var colorizedVis = { min: 0.0, max: 1.0, palette: [ 'FFFFFF', 'CE7E45', 'DF923D', 'F1B555', 'FCD163', '99B718', '74A901', '66A000', '529400', '3E8601', '207401', '056201', '004C00', '023B01', '012E01', '011D01', '011301' ], }; Map.setCenter(-7.03125, 31.0529339857, 2); Map.addLayer(colorized, colorizedVis, 'Colorized');