MOD44B_051

MODIS/Terra Vegetation Continuous Fields Yearly L3 Global 500m SIN Grid V051

Version 051
  • Abstract
    The Terra MODIS Vegetation Continuous Fields (VCF) product is a sub-pixel-level representation of surface vegetation cover estimates globally. Designed to continuously represent Earth’s terrestrial surface as a proportion of basic vegetation traits, it provides a gradation of three surface cover components: percent tree cover, percent non-tree cover, and percent bare. VCF products provide a continuous, quantitative portrayal of land surface cover with improved spatial detail, and hence, are widely used in environmental modeling and monitoring applications. The first generation of the VCF algorithm involved a semi-automated process to generate regression trees with machine learning software. A human operator was required to evaluate the tree and decide if it needed more or less training data inputs. The V003 VCF product is the first version from that generation, and only contains the percent tree cover layer, as does the current V005. The Version 051 released in winter of 2015 contains all 3 surface cover components. Generated yearly, the VCF product is produced using monthly composites of Terra MODIS 250 and 500 meters Land Surface Reflectance data, including all seven bands, and Land Surface Temperature. Several reasons help explain the inter-annual fluctuations in the percentage of tree cover from year to year, and therefore, users should exercise caution when considering performing inter-annual comparisons of VCF. The VCF products are validated to stage-1; this means that their product accuracy was estimated through an assessment of the training data’s accuracy, and from limited in situ field validation datasets. V051 Data Set Characteristics: Area: ~10 degrees x 10 degrees lat/long Image Dimensions: 4800 x 4800 rows/columns File Size: 28 MB Resolution: 250 meters Projection: Sinusoidal Data Format: HDF-EOS Science Data Sets (SDS): 7
  • Purpose
    Science Research
  • Version Description
    Collection Version 5.1 Processing and Reprocessing

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    3

    Sensor Measurements

    Quality
    Collection Progress

    Complete

    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • CANOPY CHARACTERISTICS
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • EVERGREEN VEGETATION
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • CROWN
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • DECIDUOUS VEGETATION
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • LEAF CHARACTERISTICS
    • EARTH SCIENCE
    • BIOSPHERE
    • VEGETATION
    • VEGETATION COVER
    • EARTH SCIENCE
    • LAND SURFACE
    • LAND USE/LAND COVER
    • LAND USE/LAND COVER CLASSIFICATION

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    Terra
    Instruments
    • MODIS

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/HBSL/BISB/MODAPS
    PROCESSOR
    MODIS Adaptive Processing System, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences 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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