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One-Degree Land Cover Map derived from AVHRR Data from University of Maryland
Entry ID: AVHRR_1DEG_NDVI

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Summary
Abstract: The 1 degree global land cover data set describes the geographic distributions of eleven major cover types based on interannual variations in Normalized Difference Vegetation Index (NDVI) derived from the Advanced Very High Resolution Radiometer (AVHRR) onboard NOAA polar orbiting satellites.

The eleven cover types were selected to conform with cover types required as ... View entire text
Related URL
Link: VIEW PROJECT HOME PAGE
Description: University of Maryland Global Land Cover Facility (GLCF)

Link: VIEW PROJECT HOME PAGE
Description: NASA Earth Science Information Partnership (ESIP) Federation Homepage
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: DeFries, R. and J.R.G. Townshend
Dataset Title: NDVI-derived land cover class. at a global scale
Dataset Series Name: International J. Remote Sensing
Dataset Release Date: 1994
Issue Identification: 15
Online Resource: http://www.geog.umd.edu/landcover/1d-map/1d-doc.html
Temporal Coverage
Start Date: 1987-01-01
Stop Date: 1987-12-31
Location Keywords
Data Resolution
Latitude Resolution: 1 degree
Longitude Resolution: 1 degree
Horizontal Resolution Range: 100 km - < 250 km or approximately 1 degree - < 2.5 degrees
Temporal Resolution: annual
Temporal Resolution Range: Annual
Science Keywords
ISO Topic Category
Platform
NOAA POES > NOAA Polar Orbiting Environmental Satellites Ancillary Description
Instrument
AVHRR > Advanced Very High Resolution Radiometer Ancillary Description
Project
Quality The global land cover data set was modified from the original maximum
likelihood classification result as follows to eliminate stray pixels
that were obviously incorrectly classified: pixels falling within
training areas that were not correctly classified were changed to the
cover type indicated by the ... View entire text
Access Constraints None
Use Constraints Use the following reference in citing use of this data:
DeFries, R. S. and J. R. G. Townshend, 1994a, NDVI-derived land cover
classification at global scales. International Journal of Remote
Sensing, 15:3567-3586. Special Issue on Global Data Sets.
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
UMD/LGRSS
Data Center
Global Land Cover Facility, University of Maryland Supplemental Info
Data Center URL: http://glcf.umiacs.umd.edu/

Data Center Personnel
Name: TASNIMA APOL
Phone: 301-405-7093
Email: esip-order at umiacs.umd.edu
Contact Address:
Global Land Cover Facility
Science Applications Office
University of Maryland Institute
for Advanced Computer Studies
3332 AV Williams Building
City: College Park
Province or State: MD
Postal Code: 20742
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Distribution
Distribution Media: ftp, WWW
Distribution Format: ASCII, binary
Fees: none
Personnel
RUTH S. DEFRIES
Role: INVESTIGATOR
Phone: 301-405-4884
Fax: 301-314-9299
Email: rd63 at umail.umd.edu
Contact Address:
Laboratory for Global Remote Sensing Studies
Department of Geography
2181 LeFrak Hall
University of Maryland at College Park
City: College Park
Province or State: MD
Postal Code: 20742-8225
Country: USA
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Publications/References
DeFries, R. S. and J. R. G. Townshend, 1994a, NDVI-derived land cover
classification at global scales. International Journal of Remote
Sensing, 15:3567-3586. Special Issue on Global Data Sets.

DeFries, R. S. and J. R. G. Townshend, 1994b. Global land cover:
comparison of ground-based data sets to ... View entire text
Creation and Review Dates
Last DIF Revision Date: 2009-04-20

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