MOD17A3_055

MODIS/Terra Net Primary Production Yearly L4 Global 1km SIN Grid V055

Version 055
  • 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 Gross Primary Productivity (GPP), and the rate at which they expend some of that energy for respiration. Version 5.5 of the NPP product is produced by the Numerical Terradynamic Simulation Group (NTSG) at the University of Montana (UMT). It corrects the problem with cloud-contaminated MODIS Leaf Area Index (LAI)/Fraction of Photosynthetically Active Radiation (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_products_ntsguniversity_montana). Version 5.5 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. The following data citation is recommended when using MOD17A3 data: Running, S., Mu, Q., Zhao, M. (2011). MOD17A3 MODIS/Terra Net Primary Production Yearly L4 Global 1km SIN Grid V055 [Data set]. NASA EOSDIS Land Processes DAAC.
  • Purpose
    Science Research
  • Version Description
    Collection Version 5.5 NTSG's Reprocessing

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    4

    GRID

    Quality
    Collection Progress

    Active

    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • BIOSPHERE
    • ECOLOGICAL DYNAMICS
    • PRIMARY PRODUCTION
    • EARTH SCIENCE
    • BIOSPHERE
    • ECOLOGICAL DYNAMICS
    • PHOTOSYNTHESIS

Acquisition Information Fields:

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Platforms
  • Spacecraft
    Terra
    Instruments
    • MODIS
Projects
Project Short Name Campaigns Project Dates
Terra
  • Terra
No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL Universal Transverse Mercator (UTM) CARTESIAN GEODETIC
    Tiling Identification Systems
    System Name Coordinate 1 Min Coordinate 1 Max Coordinate 2 Min Coordinate 2 Max
    MODIS Tile SIN 0.0 35.0 0.0 17.0
Location Keywords

Data Centers

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  • LP DAAC
    ARCHIVER
    Land Processes Distributed Active Archive Center

    U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
    Sioux Falls, South Dakota 57198

    M-F, 8 a.m. to 4 p.m. Central Time
    • 605-594-6116
    • 605-594-6963
    • Email
    Contact Details

    None

  • NASA/GSFC/SED/ESD/TISL/MODAPS
    PROCESSOR
    MODIS Adaptive Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

    NASA/GSFC Code 922
    GREENBELT, Maryland 20771

    Contact Details

    Contact for data content concerns

Data Contacts

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Collection Citations Fields:

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    Collection Citations
    • Collection citation title not provided

      This data set was provided by the NASA EOS Project.

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