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社区首页 >专栏 >Google Earth Engine ——GIMMS NDVI是由NOAA的几个AVHRR传感器为全球1/12度的纬度/龙格生成的数据集

Google Earth Engine ——GIMMS NDVI是由NOAA的几个AVHRR传感器为全球1/12度的纬度/龙格生成的数据集

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发布2024-02-02 11:27:47
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发布2024-02-02 11:27:47
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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

NASA/NOAA

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

  • Bits 0-2: QA flag values
    • 1: Good value
    • 2: Good value
    • 3: NDVI retrieved from spline interpolation
    • 4: NDVI retrieved from spline interpolation, possibly snow
    • 5: NDVI retrieved from average seasonal profile
    • 6: NDVI retrieved from average seasonal profile, possibly snow
    • 7: 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:

代码语言:javascript
复制
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');
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