Global Experimental Bi-Weekly Normalized Difference (GLEND) Vegetation Index
Entry ID: GLEND_NC00260

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Abstract: The vigor and density of green vegetation can be monitored through
examination of the spectral reflectance of the vegetation in the visible
and near infrared areas of the electromagnetic spectrum.

The NOAA Global Vegetation Index (GVI) uses sampled visible and near IR AVHRR
GAC data to produce a vegetative index called the Normalized Difference
Vegetation ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 75.0   S: -55.0   E: 180.0   W: -180.0

Temporal Coverage
Start Date: 1985-04-09
Stop Date: 1991-12-31
Use Constraints There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to for the USGS disclaimer.
Originating Center
Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:
Dataset ID: GLEND > Global Experimental Bi-Weekly ND

Data Center Personnel
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Phone: (704) 271-4878
Fax: 704-271-4328
Email: kgallo at
Contact Address:
Global Climate Laboratory
NOAA/National Climatic Data Center
Federal Building
City: Asheville
Province or State: NC
Postal Code: 28801-2696
Country: USA
View entire list
Kidwell, K.B., 1990. 'Global Vegetation Index Users's Guide,' U.S.
Dept. of Commerce, NOAA/NESDIS, Washington, D.C.

Kidwell, K.B., 1986. 'NOAA Polar Orbiter Data User's Guide,'
U.S. Dept. of Commerce, NOAA/NESDIS, Washington, D.C.

Ohring, G., Gallo, K., Gruber, A., Planet, W., Stowe, L., Tarpley,
J.D., 1989. 'Climate and Global Change: Characteristics of NOAA
Satellite Data,' Transactions, American Geophysical Union, 70, 41, 1989.
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2009-04-20
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Link to Web Site