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ArcGIS Online Blog : What's New in ArcGIS Online (February 2012)

ArcGIS Online Blog : What's New in ArcGIS Online (February 2012) | GIS in Education | Scoop.it
The February 2012 ArcGIS Online update has just been released. This latest update includes additions and enhancements as described below, as well as a number of bug fixes and behind-the-scenes improvements.
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NASA Earth Observatory - Vegetation Index

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.  

 

This video was found on a site titled "Explorations in agricultural research" with many great links http://zerogravitygardening.blogspot.com/


Via Seth Dixon
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