Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions
Horizontal moisture transport has a manifold role in the Arctic climate system as it distributes atmospheric water vapour and thereby shapes the radiative and hydrological conditions. Moisture transport between the Arctic and the mid‐latitudes was examined based on ERA‐Interim reanalysis. The meridi...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.5988 2024-04-14T08:06:47+00:00 Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions Naakka, Tuomas Nygård, Tiina Vihma, Timo Sedlar, Joseph Graversen, Rune Academy of Finland Academy of Finland 2019 http://dx.doi.org/10.1002/joc.5988 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5988 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5988 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.5988 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5988 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 39, issue 6, page 2862-2879 ISSN 0899-8418 1097-0088 Atmospheric Science journal-article 2019 crwiley https://doi.org/10.1002/joc.5988 2024-03-26T09:20:39Z Horizontal moisture transport has a manifold role in the Arctic climate system as it distributes atmospheric water vapour and thereby shapes the radiative and hydrological conditions. Moisture transport between the Arctic and the mid‐latitudes was examined based on ERA‐Interim reanalysis. The meridional net transport is only a small part of the water vapour exchange between the Arctic and mid‐latitudes and does not give a complete view of temporal and spatial variations in the transport. Especially near the surface, most of the northwards moisture transport is balanced by the southwards transport, and therefore the meridional net moisture transport at 60°–70°N peaks approximately at 100 hPa higher altitude than the northwards and southwards moisture transports. The total moisture transport (sum of absolute northwards and southwards moisture transports) has a much larger seasonal variation than the net transport (mean meridional transport), and the strength of the total transport is related to atmospheric humidity rather than the wind field. Strong individual moisture transport events contribute to a large part of the northwards moisture transport. This is consistent with the result that the net moisture transport is essentially generated by temporal variations of moisture fluxes. The moisture transport due to stationary zonal variation in the mass flux mostly defines the spatial distribution of the meridional moisture transport. The seasonal cycle of the net moisture transport is related to the seasonal cycle of transient eddy moisture transport but inter‐annual variations of the net moisture transport are largely influenced by the stationary eddy moisture transport. Article in Journal/Newspaper Arctic Wiley Online Library Arctic International Journal of Climatology 39 6 2862 2879 |
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Wiley Online Library |
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English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Naakka, Tuomas Nygård, Tiina Vihma, Timo Sedlar, Joseph Graversen, Rune Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
topic_facet |
Atmospheric Science |
description |
Horizontal moisture transport has a manifold role in the Arctic climate system as it distributes atmospheric water vapour and thereby shapes the radiative and hydrological conditions. Moisture transport between the Arctic and the mid‐latitudes was examined based on ERA‐Interim reanalysis. The meridional net transport is only a small part of the water vapour exchange between the Arctic and mid‐latitudes and does not give a complete view of temporal and spatial variations in the transport. Especially near the surface, most of the northwards moisture transport is balanced by the southwards transport, and therefore the meridional net moisture transport at 60°–70°N peaks approximately at 100 hPa higher altitude than the northwards and southwards moisture transports. The total moisture transport (sum of absolute northwards and southwards moisture transports) has a much larger seasonal variation than the net transport (mean meridional transport), and the strength of the total transport is related to atmospheric humidity rather than the wind field. Strong individual moisture transport events contribute to a large part of the northwards moisture transport. This is consistent with the result that the net moisture transport is essentially generated by temporal variations of moisture fluxes. The moisture transport due to stationary zonal variation in the mass flux mostly defines the spatial distribution of the meridional moisture transport. The seasonal cycle of the net moisture transport is related to the seasonal cycle of transient eddy moisture transport but inter‐annual variations of the net moisture transport are largely influenced by the stationary eddy moisture transport. |
author2 |
Academy of Finland Academy of Finland |
format |
Article in Journal/Newspaper |
author |
Naakka, Tuomas Nygård, Tiina Vihma, Timo Sedlar, Joseph Graversen, Rune |
author_facet |
Naakka, Tuomas Nygård, Tiina Vihma, Timo Sedlar, Joseph Graversen, Rune |
author_sort |
Naakka, Tuomas |
title |
Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
title_short |
Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
title_full |
Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
title_fullStr |
Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
title_full_unstemmed |
Atmospheric moisture transport between mid‐latitudes and the Arctic: Regional, seasonal and vertical distributions |
title_sort |
atmospheric moisture transport between mid‐latitudes and the arctic: regional, seasonal and vertical distributions |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/joc.5988 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5988 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5988 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.5988 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5988 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
International Journal of Climatology volume 39, issue 6, page 2862-2879 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.5988 |
container_title |
International Journal of Climatology |
container_volume |
39 |
container_issue |
6 |
container_start_page |
2862 |
op_container_end_page |
2879 |
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1796303971363586048 |