Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns

Abstract Sea ice melt and ocean heat accumulation in the Arctic are strongly influenced by the presence of atmospheric water vapor during summer. While the relationships between water vapor concentration, radiation, and surface energy fluxes in the Arctic are well understood, the sources of summer A...

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Autores principales:	Tyler S. Harrington, Jiang Zhu, Christopher B. Skinner
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/c24a299418bb430ea4764ba0469ba10d
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id	oai:doaj.org-article:c24a299418bb430ea4764ba0469ba10d
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spelling	oai:doaj.org-article:c24a299418bb430ea4764ba0469ba10d2021-12-02T18:28:37ZTerrestrial sources of summer arctic moisture and the implication for arctic temperature patterns10.1038/s41612-021-00181-y2397-3722https://doaj.org/article/c24a299418bb430ea4764ba0469ba10d2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41612-021-00181-yhttps://doaj.org/toc/2397-3722Abstract Sea ice melt and ocean heat accumulation in the Arctic are strongly influenced by the presence of atmospheric water vapor during summer. While the relationships between water vapor concentration, radiation, and surface energy fluxes in the Arctic are well understood, the sources of summer Arctic water vapor are not, inhibiting understanding and prediction of Arctic climate. Here we use the Community Earth System Model version 1.3 with online numerical water tracers to determine the geographic sources of summer Arctic water vapor. We find that on average the land surface contributes 56% of total summer Arctic vapor with 47% of that vapor coming from central and eastern Eurasia. Given the proximity to Siberia, near-surface temperatures in the Arctic between 90°E-150°E, including the Laptev Sea, are strongly influenced by concentrations of land surface-based vapor. Years with anomalously large concentrations of land surface-based vapor in the Arctic, and especially in the Laptev Sea region, often exhibit anomalous near-surface poleward flow from the high latitudes of Siberia, with links to internal variability such as the Arctic Dipole anomaly.Tyler S. HarringtonJiang ZhuChristopher B. SkinnerNature PortfolioarticleEnvironmental sciencesGE1-350Meteorology. ClimatologyQC851-999ENnpj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
spellingShingle	Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Tyler S. Harrington Jiang Zhu Christopher B. Skinner Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
description	Abstract Sea ice melt and ocean heat accumulation in the Arctic are strongly influenced by the presence of atmospheric water vapor during summer. While the relationships between water vapor concentration, radiation, and surface energy fluxes in the Arctic are well understood, the sources of summer Arctic water vapor are not, inhibiting understanding and prediction of Arctic climate. Here we use the Community Earth System Model version 1.3 with online numerical water tracers to determine the geographic sources of summer Arctic water vapor. We find that on average the land surface contributes 56% of total summer Arctic vapor with 47% of that vapor coming from central and eastern Eurasia. Given the proximity to Siberia, near-surface temperatures in the Arctic between 90°E-150°E, including the Laptev Sea, are strongly influenced by concentrations of land surface-based vapor. Years with anomalously large concentrations of land surface-based vapor in the Arctic, and especially in the Laptev Sea region, often exhibit anomalous near-surface poleward flow from the high latitudes of Siberia, with links to internal variability such as the Arctic Dipole anomaly.
format	article
author	Tyler S. Harrington Jiang Zhu Christopher B. Skinner
author_facet	Tyler S. Harrington Jiang Zhu Christopher B. Skinner
author_sort	Tyler S. Harrington
title	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
title_short	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
title_full	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
title_fullStr	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
title_full_unstemmed	Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
title_sort	terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c24a299418bb430ea4764ba0469ba10d
work_keys_str_mv	AT tylersharrington terrestrialsourcesofsummerarcticmoistureandtheimplicationforarctictemperaturepatterns AT jiangzhu terrestrialsourcesofsummerarcticmoistureandtheimplicationforarctictemperaturepatterns AT christopherbskinner terrestrialsourcesofsummerarcticmoistureandtheimplicationforarctictemperaturepatterns
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Terrestrial sources of summer arctic moisture and the implication for arctic temperature patterns

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