07 Jun '11, 3pm

NASA scientists produce first global map of land plant fluorescence

07 Jun 2011: Global Land Fluorescence Is Mapped For the First Time Click to enlarge NASA Global land plant fluorescence NASA scientists have for the first time used satellite imagery to produce a global map of how land plants fluoresce, a breakthrough that should enable researchers to more quickly identify when vegetation is stressed and to better track the carbon cycle in terrestrial ecosystems. When land plants undergo photosynthesis, they emit a difficult-to-detect reddish glow that produces fluorescence. Using data collected in 2009 aboard a Japanese GOSAT satellite, NASA scientists were able to produce the fluorescence map by analyzing an unusually dark section of the infrared portion of the solar spectrum that indicates fluorescence. To date, scientists have used satellites to track plant and forest health primarily by examining imagery that indicates the “greenness”...

Full article: http://e360.yale.edu/digest/global_land_fluorescence__is_...

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