The MOD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation.
Documentation:
MOD17A2H V6总初级生产力(GPP)产品是一个具有500米分辨率的8天累积综合数据。该产品基于辐射利用效率的概念,可作为数据模型的输入,计算陆地能源、碳、水循环过程和植被的生物地球化学。
Dataset Availability
2000-03-05T00:00:00 - 2021-09-06T00:00:00
Dataset Provider
NASA LP DAAC at the USGS EROS Center
Collection Snippet
ee.ImageCollection("MODIS/006/MOD17A2H")
Resolution
500 meters
Bands Table
Name | Description | Min | Max | Units | Scale |
Gpp | Gross primary production | 0 | 3000 | kg*C/m^2 | 0.0001 |
PsnNet | Net photosynthesis; GPP minus the maintenance respiration (MR) | -3000 | 3000 | kg*C/m^2 | 0.0001 |
Psn_QC | Quality control bits | 0 | |||
Psn_QC Bitmask |
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使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
数据引用:
代码:
var dataset = ee.ImageCollection('MODIS/006/MOD17A2H') .filter(ee.Filter.date('2018-01-01', '2018-05-01')); var gpp = dataset.select('Gpp'); var gppVis = { min: 0.0, max: 600.0, palette: ['bbe029', '0a9501', '074b03'], }; Map.setCenter(6.746, 46.529, 2); Map.addLayer(gpp, gppVis, 'GPP');