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Response of the low...
Response of the lower troposphere to moisture intrusions into the Arctic
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- Johansson, Erik (författare)
- Stockholms universitet,Meteorologiska institutionen (MISU),Swedish Meteorological and Hydrological Institute (SMHI), Sweden
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Devasthale, Abhay (författare)
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- Tjernström, Michael (författare)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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- Ekman, Annica M. L. (författare)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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L'Ecuyer, Tristan (författare)
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 44:5, s. 2527-2536
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Water vapor intrusions (WVIs) explain a significant fraction of total moisture transport and its variability in the Arctic. WVIs can precondition the Arctic atmosphere for accelerated melting of sea ice through effects on surface longwave radiation. Using data from the NASA's A-Train convoy of satellites to estimate the response of the lower troposphere to WVIs into the Arctic, we show that WVIs are associated with a surface warming of up to 5.3K (3.3K) in winter and 2.3K (1.6K) in summer, when averaged over the entire Arctic Ocean. The intrusions also lead to additional cloud radiative heating of up to 0.15K/d via up to 30% increased cloudiness in the vertical and also cause a weakening of the stability in the lower troposphere. The lower tropospheric and surface warming during winter and spring highlights the importance of understanding contribution of preconditioning to accelerated ice melt in the Arctic.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Nyckelord
- atmosfärvetenskap och oceanografi
- Atmospheric Sciences and Oceanography
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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