[Location: Location_Category='GEOGRAPHIC REGION', Location_Type='GLOBAL']
MODIS/Terra Net Primary Production Yearly L4 Global 1km SIN Grid V055Entry ID: MOD17A3
Abstract: The Moderate-resolution Imaging Spectroradiometer (MODIS) Net Primary Productivity (NPP) product (MOD17A3) defines the rate at which all plants in an ecosystem produce net useful chemical energy. In other words, NPP is equal to the difference between the rate at which plants in an ecosystem produce useful chemical energy (or GPP), and the rate at which they expend some of that energy for ... respiration.
The version-55 of the NPP product is produced by the Numerical Terradynamic Simulation Group (NTSG)/University of Montana (UMT). It corrects the problem with cloud-contaminated MODIS LAI-FPAR inputs to the MOD17 algorithm. The original, uncorrected datasets constitute the version-4 NPP products. For further details regarding the differences between the NTSG and NASA versions of this product, please consult the document referenced in the following news release: Terra MODIS GPP/NPP Products from NTSG/University of Montana (https://lpdaac.usgs.gov/about/news_archive/terra_modis_gppnpp_produ...).
Version-55 Terra/MODIS NPP products are validated to Stage-3; this means that its accuracy was assessed and uncertainties in the product were well-established via independent measurements made in a systematic and statistically robust way that represents global conditions. These data are deemed ready for use in science applications.
V055 Data Set Characteristics:
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: ~7 MB
Resolution: 1000 meters
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 3
Purpose: Science Research
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Data Set Citation
Start Date: 1999-12-18
Data Set Progress
Extended Metadata Properties
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