[Parameters: Topic='BIOSPHERE', Term='VEGETATION', Variable_Level_1='CROWN']
MODIS/Terra Vegetation Continuous Fields Yearly L3 Global 500m SIN Grid V004Entry ID: MOD44B4
Abstract: Decommissioned product.
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. 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.
V004 Data Set Characteristics:
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 2400 x 2400 rows/columns
File Size: ~1.3 MB
Resolution: 500 meters
Data Format: HDF-EOS
Science Data Sets (SDS): 1
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Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center (LP DAAC)
Dataset Title: MODIS/Terra Surface Reflectance 8-Day L3 Global 500m SIN Grid V004
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V004Online Resource: https://lpdaac.usgs.gov/
Start Date: 2000-03-05Stop Date: 2005-03-07
Latitude Resolution: 500 meters
Longitude Resolution: 500 meters
Horizontal Resolution Range: 500 meters - < 1 km
Temporal Resolution Range: Annual
BIOSPHERE > VEGETATION > CROWN
BIOSPHERE > VEGETATION > DECIDUOUS VEGETATION
BIOSPHERE > VEGETATION > LEAF CHARACTERISTICS
BIOSPHERE > VEGETATION > VEGETATION COVER
LAND SURFACE > LAND USE/LAND COVER > LAND USE/LAND COVER CLASSIFICATION
LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
BIOSPHERE > VEGETATION > EVERGREEN VEGETATION
Quality For more information on potential sensor-related anomalies, consult the following URL: http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=...
Access Constraints None
Use Constraints None
Data Set Progress
Distribution Media: HTTP
Distribution Size: ~1.3 MB
Distribution Format: HDF-EOS
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center 47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Moderate Resolution Imaging Spectroradiometer (MODIS) publications written by the MODIS Science Team: [available online at http://modis.gsfc.nasa.gov/sci_team/pubs/]
National Aeronautics and Space Administration, 2000, MODIS data products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard Space Flight Center, http://modis.gsfc.nasa.gov/data/dataprod/index.php.
National Aeronautics and Space Administration, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/sites/default/files/publications/data_p...].
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-11-22
Last DIF Revision Date: 2015-06-05