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2013 continued a trend of water vapor in the surface atmosphere increasing over land and ocean relative to the 1970s, while the atmosphere over land becomes less saturated.
Highlights:
- Specific humidity—the amount of water vapor–was well above average over land and ocean in 2013, while relative humidity—how close the air is to being completely saturated with water vapor—was far below average.
- Overall, water vapor in the surface atmosphere has increased over land and ocean relative to the 1970s, while the atmosphere over land is becoming less saturated.
- More State of the Climate in 2013 highlights
Department:
Reviewer:
Deke Arndt
Climate.gov Section:
