Continuous Fields Tree Cover Project
Entry ID: GLCF_TREE_COVER_AVHRR

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Summary
Abstract: From the Documents-Dataset Descriptions located at the following URL:

http://glcf.umiacs.umd.edu/data/treecover/description.shtml

Origin.
An important requirement for global models of the earth system is
reliable, geographically-referenced, consistent data on global
vegetative cover. The only truly synoptic ... View entire text
Related URL
Description: This is the location from which the Goodes Projection Tree Cover
Data as BSQ Binary Files may be downloaded.
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: DeFries, R., Hansen, M., Townshend, J.R.G. and Sholberg, R.
Dataset Title: Global land cover classifications at 8km spatial resolution: The use of training data derived from Landsat imagery in decision tree classifiers
Dataset Series Name: International Journal of Remote Sensing
Dataset Release Date: 1998
Issue Identification: Volume 19
Online Resource: http://glcf.umiacs.umd.edu/data/treecover/index.shtml

Dataset Originator/Creator: DeFries, R.S., Hansen, M., Townshend, J.R.G., Janetos, A.C. and Loveland, T.R.
Dataset Title: A New Global 1km Data Set of Percent Tree Cover Derived form Remote Sensing
Dataset Series Name: Global Change Biology
Issue Identification: In Press
Online Resource: http://glcf.umiacs.umd.edu/data/treecover/index.shtml

Dataset Originator/Creator: Hansen, M., DeFries, R., Townshend, J.R.G. and Sholberg, R.
Dataset Title: Global cover classifications at 1km resolution using a decision tree classifier
Dataset Series Name: International Journal of Remote Sensing
Issue Identification: In Press
Online Resource: http://glcf.umiacs.umd.edu/data/treecover/index.shtml
Temporal Coverage
Start Date: 1992-01-01
Stop Date: 1993-12-31
Data Resolution
Latitude Resolution: 1 km
Longitude Resolution: 1 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Quality Combining a land cover map based on International Geosphere Biosphere
Programme IGBP land cover definitions (Hansen et al. in press) with
percentage cover estimations of trees, leaf longevity and leaf type
(DeFries et al. in press) produced the layers provided here. The land
cover map was joined with the mixture model results ... View entire text
Access Constraints None
Use Constraints Please use the following references to cite the data:
DeFries, R.S., Hansen, M., Townshend, J.R.G., Janetos, A.C. and
Loveland, T.R. (in press) A New Global 1km Data Set of Percent Tree
Cover Derived form Remote Sensing, Global Change Biology,

Hansen, M., DeFries, R., Townshend, J.R.G. and Sholberg, R. (in ... View entire text
Data Set Progress
COMPLETE
Originating Center
Data Center
Global Land Cover Facility, University of Maryland Supplemental Info
Data Center URL: http://glcf.umd.edu/
Dataset ID: Treecover Data

Data Center Personnel
Name: GLOBAL LAND COVER FACILITY
Email: glcf at umd.edu
Contact Address:
Global Land Cover Facility
3166 A.V. Williams Bldg
University of Maryland
City: College Park
Province or State: MD
Postal Code: 20742
Country: USA
Distribution
Distribution Media: Online (HTTP)
Fees: None
Personnel
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., Hansen, M., Townshend, J.R.G., Janetos, A.C. and
Loveland, T.R. (in press) A New Global 1km Data Set of Percent Tree
Cover Derived form Remote Sensing, Global Change Biology,

Hansen, M., DeFries, R., Townshend, J.R.G. and Sholberg, R. (in press)
Global cover classifications at 1km resolution using a decision tree
classifier, International Journal of Remote Sensing,

DeFries, R., Hansen, M., Townshend, J.R.G. and Sholberg, R. (1998)
Global land cover classifications at 8km spatial resolution: The use
of training data derived from Landsat imagery in decision tree
classifiers, International Journal of Remote Sensing, 19, 3141-3168.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-05-25
Last DIF Revision Date: 2008-08-14
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