A New High-Resolution National Map of Vegetation Ecoregions Produced Empirically Using Multivariate Spatial Clustering
Entry ID: ORNL_MGC

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Summary
Abstract: A parallel supercomputer was used to divide the conterminous 48 states of
the United States into 1000, 2000, 3000, 5000, and 7000 ecoregions with
relatively homogeneous values of elevation, edaphic, and climatic variables
using an iterative multivariate clustering technique. Resolution of the
clustered maps is 1 square kilometer; each national map has over 7.7 million
cells. Each cell has nine ... View entire text
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Geographic Coverage
Spatial coordinates   
  N: 76.63   S: 13.71   E: -61.48   W: -177.1

Data Set Citation
Dataset Originator/Creator: William W. Hargrove and Robert J. Luxmoore
Dataset Title: A New High-Resolution National Map of Vegetation Ecoregions Produced Empirically Using Multivariate Spatial Clustering
Dataset Publisher: Oak Ridge National Laboratory (ORNL)
Data Presentation Form: GIS Map
Online Resource: http://research.esd.ornl.gov/~hnw/esri98/
Data Set Progress
IN WORK
Originating Center
Data Center
Geographic Information Science and Technology, Oak Ridge National Laboratory, U.S. Department of Energy Supplemental Info
Data Center URL: http://www.ornl.gov/gist/

Data Center Personnel
Name: BUDHENDRA BHADURI
Phone: 865-241 9272
Fax: 865-241 6261
Email: bhaduribl at ornl.gov
Contact Address:
Geographic Information Science & Technology
PO Box 2008 MS 6237
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6237
Country: USA
Distribution
Distribution Media: Online
Fees: No fees
Personnel
Role: DIF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Publications/References
Albert, D.A. 1995. Regional Landscape Ecosystems of Michigan, Minnesota, and
Wisconsin: A Working Classification, United States Department of Agriculture, Forest Service, North Central Forest Experiment Station. St. Paul, Minnesota, 1995. General Technical Report NC-178.
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Creation and Review Dates
DIF Creation Date: 2005-11-22
Last DIF Revision Date: 2007-05-02
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