Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales

Abstract Atmospheric meridional energy transport into the Arctic plays an important role in Arctic weather and climate. The transport of latent energy in the form of water vapour strongly influences the Arctic atmosphere. The transport is achieved by circulation mechanisms on various scales and is l...

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Published in:Quarterly Journal of the Royal Meteorological Society
Main Authors: Rydsaa, J. H., Graversen, R. G., Heiskanen, T. I. H., Stoll, P. J.
Other Authors: Norges Forskningsråd
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2021
Subjects:
Online Access:http://dx.doi.org/10.1002/qj.4022
https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022
https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.4022
https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022
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spelling crwiley:10.1002/qj.4022 2024-06-02T08:00:17+00:00 Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales Rydsaa, J. H. Graversen, R. G. Heiskanen, T. I. H. Stoll, P. J. Norges Forskningsråd 2021 http://dx.doi.org/10.1002/qj.4022 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.4022 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Quarterly Journal of the Royal Meteorological Society volume 147, issue 737, page 2281-2292 ISSN 0035-9009 1477-870X journal-article 2021 crwiley https://doi.org/10.1002/qj.4022 2024-05-03T11:26:07Z Abstract Atmospheric meridional energy transport into the Arctic plays an important role in Arctic weather and climate. The transport of latent energy in the form of water vapour strongly influences the Arctic atmosphere. The transport is achieved by circulation mechanisms on various scales and is largely comprised of extreme transport events. Here, we use a Fourier‐based method of dividing the latent energy transport into spatial scales and investigate the extent to which extreme events in latent energy transport on planetary and synoptic scales have changed over the past four decades, and how they influence the Arctic winter temperatures. We find that wintertime extreme transport events on planetary scales are associated with warm temperature anomalies across the entire Arctic, while the extreme events on synoptic scales have less impact on the Arctic temperatures. We show that over the past four decades, there has been a significant increase in the wintertime latent energy transport by planetary‐scale systems, and a decrease in synoptic‐scale transport. This shift may have contributed to the amplified warming observed in the Arctic winter over the past decades. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Quarterly Journal of the Royal Meteorological Society 147 737 2281 2292
institution Open Polar
collection Wiley Online Library
op_collection_id crwiley
language English
description Abstract Atmospheric meridional energy transport into the Arctic plays an important role in Arctic weather and climate. The transport of latent energy in the form of water vapour strongly influences the Arctic atmosphere. The transport is achieved by circulation mechanisms on various scales and is largely comprised of extreme transport events. Here, we use a Fourier‐based method of dividing the latent energy transport into spatial scales and investigate the extent to which extreme events in latent energy transport on planetary and synoptic scales have changed over the past four decades, and how they influence the Arctic winter temperatures. We find that wintertime extreme transport events on planetary scales are associated with warm temperature anomalies across the entire Arctic, while the extreme events on synoptic scales have less impact on the Arctic temperatures. We show that over the past four decades, there has been a significant increase in the wintertime latent energy transport by planetary‐scale systems, and a decrease in synoptic‐scale transport. This shift may have contributed to the amplified warming observed in the Arctic winter over the past decades.
author2 Norges Forskningsråd
format Article in Journal/Newspaper
author Rydsaa, J. H.
Graversen, R. G.
Heiskanen, T. I. H.
Stoll, P. J.
spellingShingle Rydsaa, J. H.
Graversen, R. G.
Heiskanen, T. I. H.
Stoll, P. J.
Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
author_facet Rydsaa, J. H.
Graversen, R. G.
Heiskanen, T. I. H.
Stoll, P. J.
author_sort Rydsaa, J. H.
title Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
title_short Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
title_full Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
title_fullStr Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
title_full_unstemmed Changes in atmospheric latent energy transport into the Arctic: Planetary versus synoptic scales
title_sort changes in atmospheric latent energy transport into the arctic: planetary versus synoptic scales
publisher Wiley
publishDate 2021
url http://dx.doi.org/10.1002/qj.4022
https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022
https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.4022
https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4022
geographic Arctic
geographic_facet Arctic
genre Arctic
genre_facet Arctic
op_source Quarterly Journal of the Royal Meteorological Society
volume 147, issue 737, page 2281-2292
ISSN 0035-9009 1477-870X
op_rights http://creativecommons.org/licenses/by/4.0/
op_doi https://doi.org/10.1002/qj.4022
container_title Quarterly Journal of the Royal Meteorological Society
container_volume 147
container_issue 737
container_start_page 2281
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