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http://earthobservatory.nasa.gov/GlobalMaps/view.php?d1=MOD13A2_M_NDVI# Satellites observe global-scale patterns of vegetation that scientists use to study c…

 

The NDVI (Normalized Digital Vegetation Index) is on of the primary methods for detecting healthy vegetation using satellite imagery.  This also serves as a useful way to distinguish between distinct ecological and agricultural regions and the temporal patterns of planting seasons. 

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