Contact: Marc Airhart
University of Texas at Austin
Caption: During the 2005 and 2010 droughts, satellites detected decreased vegetation greenness -- or a lower Normalized Vegetation Index (NDVI) -- over the southern Amazon rainforest (orange and red regions). NDVI is derived from MODIS instruments on NASA's Terra and Aqua satellites.
Credit: Image courtesy of Ranga Myneni, Jian Bi and NASA.
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Related news release: Risk of Amazon rainforest dieback is higher than IPCC projects