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Atmospheric moisture exchange between Arctic Ocean and surrounding regions investigated by moisture transport model experiment

Urheber*innen

Sato,  Tomonori
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Nakamura,  Tetsu
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Iijima,  Yoshihiro
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Hiyama,  Tetsuya
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Sato, T., Nakamura, T., Iijima, Y., Hiyama, T. (2023): Atmospheric moisture exchange between Arctic Ocean and surrounding regions investigated by moisture transport model experiment, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1331


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017277
Zusammenfassung
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 lead to changes in hydrological cycle over high latitude terrestrial zones. However, its amount and temporal variations from seasonal to decadal timescales need further investigations with attention to the moisture source regions. This study, thus, developed atmospheric moisture transport model that is driven by reanalysis dataset as forcing, and investigated the moisture exchange across the Arctic coastal regions. Atmospheric moisture 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. In the Arctic region, the fraction of atmospheric moisture originated from Eurasian and North American continents have increased during summer. Our results denote moisture exchange between Arctic Ocean and surrounding regions has undergone changes associated with Arctic warming.