PIA24986: State Low-Humidity Thresholds for Flu Outbreaks
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Aqua
 Spacecraft:  Aqua
 Instrument:  AIRS
 Product Size:  1400 x 1000 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA24986.tif (573 kB)
 Full-Res JPEG:  PIA24986.jpg (68.14 kB)

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This chart shows low-humidity thresholds that signal flu outbreaks in 48 U.S. states, calculated using water vapor data from NASA's Atmospheric Infrared Sounder (AIRS) instrument on the Aqua satellite with data on U.S. flu cases from 2003 to 2015. The color range from lighter to darker indicates lower to higher humidity thresholds, with the driest state, Wyoming, having the lowest threshold and Florida the highest. Units are kilograms of water per kilogram of air.

More information about AIRS can be found at https://airs.jpl.nasa.gov.

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