Gross and Net Primary Production

sample thumbnail of gross primary production image

The Primary Production products are designed to provide an accurate regular measure of the growth of the terrestrial vegetation. Production is determined by first computing a daily net photosynthesis value which is then composited over an 8-day interval of observations for a year.
The product is a cumulative composite of GPP values based on the radiation use efficiency concept that may be used as inputs to data models for calculating terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation.
Modification of parameters in the Biome Property Look-Up Table (BPLUT) have been made to agree with GPP derived from measurements at eddy flux towers and synthesized NPP.
Have included a spatially non-linear interpolation of coarse-resolution meteorological data at the 1-km MODIS pixel level, instead of nearest neighbor sampling, to increase the accuracy of meteorological data input at the pixel level

 

Product PI: Steve Running
PI-maintained product web page

User Guide

ATBD

 

See links below to the Product Description pages posted at the LP DAAC (product details, data access links, and more....)


 

Product Name


Gross Primary Productivity 8-Day L4 Global 500m SIN Grid

Net Primary Production Yearly L4 Global 1km

Terra Product ID


MOD17A2H

MOD17A3H

Aqua Product ID


MYD17A2H

MYD17A3H

30-Aug-2019