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Description

This dataset provides global gridded daily estimates of gross primary production (GPP) and uncertainties at 0.5 deg latitude by 0.625 deg longitude resolution for the period March 2000 to present. The GPP is derived from MODerate-resolution Imaging Spectroradiometer (MODIS) instruments on NASA Terra and Aqua satellites. GPP is derived using the MODIS Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectances (NBAR) product, which is used as input to neural network models to globally upscale GPP estimated from selected collocated FLUXNET 2015 and OneFlux eddy covariance tower sites used for model training. Version 2.2 is the current version of the dataset.

If you have any questions, please read the README document first and post your question to the NASA Earthdata Forum (forum.earthdata.nasa.gov) or email the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov).

Version Description

Version 2.2

Product Summary

Platforms
Terra
Instruments
MODIS
Spatial Extent

N: 79.9 S: -80 E: 174.9 W: -175

Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2000-03-01
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C3464727089-GES_DISC
Data State
ACTIVE
Number of Files/Granules
308
Processing Level
3
Published
Updated
Science Keywords
Gross Primary Production (gpp)

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA Goddard Space Flight Center. (2025). Daily FluxSat GPP of biomass over Land, Based on MODIS Terra and Aqua adjusted reflectance Collection 6.1, on a Global 0.5 by 0.625 Degree Grid, Level 3 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/MEASURES/FLUXSAT/FLUXSATMGPP_L3_DAILY_P5DEG.2.2 Date Accessed: 2025-12-13

Documents

READ-ME

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
Average_BRDF_Quality Average_BRDF_Quality 1 float32 -9999 N/A N/A
Counts Counts 1 int16 N/A N/A N/A
crs crs 1 float64 -9999 N/A N/A
GPP GPP g m-2 d-1 float32 -9999 N/A N/A
GPP_std GPP_std g m-2 d-1 float32 -9999 N/A N/A
GPP_uncertainty GPP_uncertainty g m-2 d-1 float32 -9999 N/A N/A
lat lat degrees_north float32 -9999 N/A N/A
lon lon degrees_east float32 -9999 N/A N/A
time midday time days since 2000-01-01 00:00:00 float64 -9999 N/A N/A
time_bnds start and end time for each time slice days since 2000-01-01 00:00:00 int64 -9999 N/A N/A
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