Global Greenness based on the Normalized Difference Vegetation Index

Jul 8, 2010
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Description:
One method of mapping the difference in vegetation is a measurement known as the Normalized Difference Vegetation Index (NDVI). This image shows NDVI from Nov. 1, 2007, to Dec. 1, 2007, during autumn in the Northern Hemisphere. This monthly average is based on observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

The greenness values on this global map range from -0.1 to 0.9, but have no actual unit. Instead, higher values (dark greens) show land areas with plenty of leafy green vegetation, such as the Amazon Rainforest. Lower values (beige to white) show areas with little or no vegetation, including sand seas and Arctic areas. Areas with moderate amounts of vegetation are pale green. Land areas with no data appear gray, and water appears blue.
Data Provided By:
NASA
Content date:
not specified
Citation:
Title: Global Greenness based on the Normalized Difference Vegetation Index
Credits: NASA
Publication Date: 2007
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not specified
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not specified
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No Use Constraints - Available on the web
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Dataset Type:
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Tags:
greenness, global, climate change, vegetation, land cover
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About the Uploader

Conservation Biology Institute

The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.