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Climate Moisture Index

Map showing Climate Moisture Index

Legend

Unitless ratio per grid cell. (The approximate area of a 30 minute grid cell at the equator is 3600 km2).

  • colored box Arid/semi-arid (0 - 0.25)
  • colored box Arid/semi-arid (0.25 - 0.75)
  • colored box Arid/semi-arid (> 0.75)
  • colored box Sub-humid/humid (0 - 0.25)
  • colored box Sub-humid/humid (0.25 - 0.75)
  • colored box Sub-humid/humid (> 0.75)

Source

Water Systems Analysis Group, University of New Hampshire (http://wwdrii.sr.unh.edu)

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