Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment
Rapid Arctic warming has altered the regional hydrological cycle through reduction in Arctic sea ice. Observational and modeling efforts provided evidence that the enhanced evaporation from the Arctic Ocean could increase snowfall over high latitude terrestrial zones. However, questions remain regar...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/87717 2023-05-15T14:32:47+02:00 Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment Sato, Tomonori Nakamura, Tetsu Iijima, Yoshihiro Hiyama, Tetsuya http://hdl.handle.net/2115/87717 https://doi.org/10.1038/s41612-022-00310-1 eng eng Nature Portfolio http://hdl.handle.net/2115/87717 npj Climate and Atmospheric Science, 5: 91 http://dx.doi.org/10.1038/s41612-022-00310-1 452 article fthokunivhus https://doi.org/10.1038/s41612-022-00310-1 2023-01-27T01:02:54Z Rapid Arctic warming has altered the regional hydrological cycle through reduction in Arctic sea ice. Observational and modeling efforts provided evidence that the enhanced evaporation from the Arctic Ocean could increase snowfall over high latitude terrestrial zones. However, questions remain regarding the amount of equatorward moisture transport and its change over the decadal timescale. Here we show that the transport of atmospheric moisture to Siberia that originated from Arctic Ocean evaporation has increased significantly in autumn to early winter during 1981-2019 when substantial sea ice retreat was observed. The enhanced Arctic moisture content is found in western Siberia in September, consistent with the observed increase in snow cover investigated in earlier studies. Meanwhile, the annual maximum daily amount of Arctic moisture shows a sharp increase in eastern Siberia during October-December associated with cyclonic activities along coastal regions. Our results suggest the importance of monitoring equatorward moisture transport during snow accumulation seasons because it could enhance local snowstorms as evaporation from the Arctic Ocean increases in the near future. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Siberia Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Arctic Ocean npj Climate and Atmospheric Science 5 1 |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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English |
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452 Sato, Tomonori Nakamura, Tetsu Iijima, Yoshihiro Hiyama, Tetsuya Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
topic_facet |
452 |
description |
Rapid Arctic warming has altered the regional hydrological cycle through reduction in Arctic sea ice. Observational and modeling efforts provided evidence that the enhanced evaporation from the Arctic Ocean could increase snowfall over high latitude terrestrial zones. However, questions remain regarding the amount of equatorward moisture transport and its change over the decadal timescale. Here we show that the transport of atmospheric moisture to Siberia that originated from Arctic Ocean evaporation has increased significantly in autumn to early winter during 1981-2019 when substantial sea ice retreat was observed. The enhanced Arctic moisture content is found in western Siberia in September, consistent with the observed increase in snow cover investigated in earlier studies. Meanwhile, the annual maximum daily amount of Arctic moisture shows a sharp increase in eastern Siberia during October-December associated with cyclonic activities along coastal regions. Our results suggest the importance of monitoring equatorward moisture transport during snow accumulation seasons because it could enhance local snowstorms as evaporation from the Arctic Ocean increases in the near future. |
format |
Article in Journal/Newspaper |
author |
Sato, Tomonori Nakamura, Tetsu Iijima, Yoshihiro Hiyama, Tetsuya |
author_facet |
Sato, Tomonori Nakamura, Tetsu Iijima, Yoshihiro Hiyama, Tetsuya |
author_sort |
Sato, Tomonori |
title |
Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
title_short |
Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
title_full |
Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
title_fullStr |
Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
title_full_unstemmed |
Enhanced Arctic moisture transport toward Siberia in autumn revealed by tagged moisture transport model experiment |
title_sort |
enhanced arctic moisture transport toward siberia in autumn revealed by tagged moisture transport model experiment |
publisher |
Nature Portfolio |
url |
http://hdl.handle.net/2115/87717 https://doi.org/10.1038/s41612-022-00310-1 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice Siberia |
genre_facet |
Arctic Arctic Ocean Sea ice Siberia |
op_relation |
http://hdl.handle.net/2115/87717 npj Climate and Atmospheric Science, 5: 91 http://dx.doi.org/10.1038/s41612-022-00310-1 |
op_doi |
https://doi.org/10.1038/s41612-022-00310-1 |
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npj Climate and Atmospheric Science |
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5 |
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1 |
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1766306129040637952 |