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: John Kimball
PI-maintained product web page

User Guide - C6.1

ATBD

 

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

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Product Name Gross Primary Productivity 8-Day L4 Global 500m SIN Grid Net Primary Production Yearly L4 Global 1km Net Primary Production Gap-Filled 8-Day L4 Global 500m SIN Grid Net Primary Production Gap-Filled Yearly L4 Global 500m SIN Grid

Terra Product ID MOD17A2H MOD17A3H MOD17A2HGF MOD17A3HGF

Aqua Product ID MYD17A2H MYD17A3H MYD17A2HGF MYD17A3HGF