Dataset Open Access
MODIS Collection 6 .1 global yearly Forest and Vegetation Cover Fraction
Kern, Stefan
MARC21 XML Export
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<subfield code="a"><p><strong>Abstract:</strong> NetCDF files of the forest cover fraction, vegetation cover fraction and fraction of non-vegetated area on 250m grid resolution sinusoidal grid generated at ICDC from the original HDF files (see <a href="https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html">https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html</a> and <a href="https://doi.org/10.25592/uhhfdm.11198">https://doi.org/10.25592/uhhfdm.11198</a>) obtained from <a href="https://lpdaac.usgs.gov/mod44bv061/">https://lpdaac.usgs.gov/mod44bv061/</a> are used to compute globally gridded maps of these parameters at 0.5 degree grid resolution on an equi-rectangular climate modeling grid (CMG). The global maps contain the grid-cell mean fractions of the three mentioned parameters, their variance within the grid cells, and - for the forest cover fraction - the grid-cell mean standard deviation. In addition, the data set includes maps of the number of valid forest cover fraction values at 250 m resolution per 0.5 degree grid cell, a grid cell mean quality flag and fractions of the two most abundant quality flags (primary and secondary). Generally all valid data are used; the user is advised to check the quality flags to eventually discard data of low quality.</p>
<p><strong>TableOfContents:</strong> grid cell mean forest cover fraction; grid cell mean forest cover fraction standard deviation; forest cover fraction variance within grid cell; grid cell mean vegetation cover fraction; vegetation cover fraction variance within grid cell; non-vegetated area cover fraction; non-vegetated area cover fraction variance within grid cell; number of useful vegetation cover fraction values per grid cell; grid cell mean quality flag; primary quality flag fraction; secondary quality flag fraction</p>
<p><strong>Technical Info:</strong> dimension: 720 columns x 360 rows x unlimited; temporalExtent_startDate: 2000-03-05; temporalExtent_endDate: 2022-03-05; temporalResolution: yearly; spatialResolution: 0.5; spatialResolutionUnit: degrees; horizontalResolutionXdirection: 0.5; horizontalResolutionXdirectionUnit: degrees; horizontalResolutionYdirection: 0.5; horizontalResolutionYdirectionUnit: degrees; verticalResolution: none; verticalResolutionUnit: none; verticalStart: none; verticalEnd: none; instrumentName: MODerate Resolution Spectroradiometer (MODIS); instrumentType: visible_to_infrared_spectroradiometer; instrumentLocation: Earth Observation Satellite (EOS) Terra; instrumentProvider: NOAA/NASA</p>
<p><strong>Methods:</strong> [1] <a href="https://lpdaac.usgs.gov/products/mod44bv061/">https://lpdaac.usgs.gov/products/mod44bv061/</a>; [2] Townshend, J., et al., User Guide for the MODIS Vegetation Continuous Fields product Collection 6.1, verison 1, <a href="https://lpdaac.usgs.gov/documents/1494/MOD44B_User_Guide_V61pdf">https://lpdaac.usgs.gov/documents/1494/MOD44B_User_Guide_V61pdf</a>; [3] Algorithm Theoretical Basis Document (ATBD), <a href="https://lpdaac.usgs.gov/documents/113/MOD44B_ATBD.pdf">https://lpdaac.usgs.gov/documents/113/MOD44B_ATBD.pdf</a>; [4] Carroll, M., et al., 2011. Vegetative Cover Conversion and Vegetation Continuous Fields. In: Ramachandran, B., C. O. Justice, and M. Abrams (eds.), Land Remote Sensing and Global Environment Change: NASA&#39;s Earth Observing System and the Science of ASTER and MODIS. Springer Verlag.; [5] Hansen, M., et al., 2005. Estimation of tree cover using MODIS data at global, continental and regional/local scales. Int. J. Rem. Sens., 26(19), 4359-4380.</p>
<p><strong>Units:</strong> Units for all variables (see TableOfContents): percent; percent; 1; percent; 1; percent; 1; 1; 1; 1; 1</p>
<p><strong>geoLocations:</strong> westBoundLongitude: -180.0 degrees East; eastBoundLongitude: 180.0 degrees East; southBoundLatitude: -90.0 degrees North; northBoundLatitude: 90.0 degrees North; geoLocationPlace: global on land</p>
<p><strong>Size:</strong> 1 file per year, 2000-2021: 5197612 bytes; all packed into one zip-archive</p>
<p><strong>Format:</strong> netCDF</p>
<p><strong>DataSources:</strong></p>
<p>Original data on sinusoidal grid tiles in hdf-format: <a href="https://doi.org/10.5067/MODIS/MOD44B.061">https://doi.org/10.5067/MODIS/MOD44B.061</a> (last accessed 2022-11-01), see also <a href="https://lpdaac.usgs.gov/products/mod44bv061/">https://lpdaac.usgs.gov/products/mod44bv061/</a> (last accessed: 2022-11-01)</p>
<p>Reprocessed data on sinusoidal grid tiles in netCDF format: <a href="https://doi.org/10.25592/uhhfdm.11198">https://doi.org/10.25592/uhhfdm.11198</a> (last access 2022-12-19), see also&nbsp; <a href="https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html">https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html</a> (last accessed 2022-12-19)</p>
<p><strong>Contact:</strong> <a href="mailto:stefan.kern@uni-hamburg.de">stefan.kern (at) uni-hamburg.de</a></p>
<p><strong>Web page:</strong> <a href="https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html">https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html</a></p></subfield>
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- Publication date:
- December 19, 2022
- DOI:
-
- Keyword(s):
- Climate Research Forest Cover Fraction Vegetation Cover Fraction Global maps Yearly Satellite Remote Sensing MODIS EOS-Terra University of Maryland ICDC
- Subject(s):
- Related identifiers:
- Derived from:
10.25592/uhhfdm.11198 - Documented by:
https://www.cen.uni-hamburg.de/en/icdc/data/land/modis-vcf-forest.html - References:
10.5067/MODIS/MOD44B.061, https://lpdaac.usgs.gov/products/mod44bv061/ - Communities:
- License (for files):
- Creative Commons Attribution 4.0 International