The MOD17A3HGF V6 product provides information about annual Net Primary Productivity (NPP) at 500m pixel resolution. Annual NPP is derived from the sum of all 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the Gross Primary Productivity (GPP) and the Maintenance Respiration (MR) (GPP-MR).
MOD17A3HGF V6产品提供500米像素分辨率的年度净初级生产力(NPP)信息。年度净初级生产力是由给定年份的所有8天净光合作用(PSN)产品(MOD17A2H)之和得出的。PSN值是总初级生产力(GPP)和维持呼吸(MR)之差(GPP-MR)。
Dataset Availability
2001-01-01T00:00:00 - 2020-01-01T00:00:00
Dataset Provider
NASA LP DAAC at the USGS EROS Center
Collection Snippet
ee.ImageCollection("MODIS/006/MOD17A3HGF")
Resolution
500 meters
Bands Table
Name | Description | Min | Max | Units | Scale |
Npp | Net primary productivity | -30000 | 32700 | kg*C/m^2 | 0.0001 |
Npp_QC | Quality control percentage | 0 | 100 | % | 0 |
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/MOD17A3HGF'); var visualization = { bands: ['Npp'], min: 0.0, max: 19000.0, palette: ['bbe029', '0a9501', '074b03'] }; Map.centerObject(dataset); Map.addLayer(dataset, visualization, 'NPP');