Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ...
In recent decades, the Arctic has warmed faster than the global mean, especially during winter. This has been attributed to various causes, with recent studies highlighting the importance of enhanced downward infrared radiation associated with anomalous inflow of warm, moist air from lower latitudes...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000614002 http://hdl.handle.net/20.500.11850/614002 |
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ftdatacite:10.3929/ethz-b-000614002 2024-04-28T08:06:22+00:00 Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... Murto, Sonja Papritz, Lukas Messori, Gabriele Caballero, Rodrigo Svensson, Gunilla Wernli, Heini 2023 application/pdf https://dx.doi.org/10.3929/ethz-b-000614002 http://hdl.handle.net/20.500.11850/614002 en eng ETH Zurich Arctic Atmospheric circulation Atmospheric river Winter cool season Surface fluxes Surface temperature article-journal Text ScholarlyArticle Journal Article 2023 ftdatacite https://doi.org/10.3929/ethz-b-000614002 2024-04-02T12:32:08Z In recent decades, the Arctic has warmed faster than the global mean, especially during winter. This has been attributed to various causes, with recent studies highlighting the importance of enhanced downward infrared radiation associated with anomalous inflow of warm, moist air from lower latitudes. Here, we study wintertime surface energy budget (SEB) anomalies over Arctic sea ice on synoptic time scales, using ERA5 (1979–2020). We introduce a new algorithm to identify areas with extreme, positive daily mean SEB anomalies and connect them to form spatiotemporal life cycle events. Most of these events are associated with large-scale inflow from the Atlantic and Pacific Oceans, driven by poleward deflection of the storm track and blocks over northern Eurasia and Alaska. Events originate near the ice edge, where they have roughly equal contributions of net longwave radiation and turbulent fluxes to the positive SEB anomaly. As the events move farther into the Arctic, SEB anomalies decrease due to weakening ... : Journal of Climate, 36 (11) ... Article in Journal/Newspaper Arctic Sea ice Alaska DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Arctic Atmospheric circulation Atmospheric river Winter cool season Surface fluxes Surface temperature |
spellingShingle |
Arctic Atmospheric circulation Atmospheric river Winter cool season Surface fluxes Surface temperature Murto, Sonja Papritz, Lukas Messori, Gabriele Caballero, Rodrigo Svensson, Gunilla Wernli, Heini Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
topic_facet |
Arctic Atmospheric circulation Atmospheric river Winter cool season Surface fluxes Surface temperature |
description |
In recent decades, the Arctic has warmed faster than the global mean, especially during winter. This has been attributed to various causes, with recent studies highlighting the importance of enhanced downward infrared radiation associated with anomalous inflow of warm, moist air from lower latitudes. Here, we study wintertime surface energy budget (SEB) anomalies over Arctic sea ice on synoptic time scales, using ERA5 (1979–2020). We introduce a new algorithm to identify areas with extreme, positive daily mean SEB anomalies and connect them to form spatiotemporal life cycle events. Most of these events are associated with large-scale inflow from the Atlantic and Pacific Oceans, driven by poleward deflection of the storm track and blocks over northern Eurasia and Alaska. Events originate near the ice edge, where they have roughly equal contributions of net longwave radiation and turbulent fluxes to the positive SEB anomaly. As the events move farther into the Arctic, SEB anomalies decrease due to weakening ... : Journal of Climate, 36 (11) ... |
format |
Article in Journal/Newspaper |
author |
Murto, Sonja Papritz, Lukas Messori, Gabriele Caballero, Rodrigo Svensson, Gunilla Wernli, Heini |
author_facet |
Murto, Sonja Papritz, Lukas Messori, Gabriele Caballero, Rodrigo Svensson, Gunilla Wernli, Heini |
author_sort |
Murto, Sonja |
title |
Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
title_short |
Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
title_full |
Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
title_fullStr |
Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
title_full_unstemmed |
Extreme Surface Energy Budget Anomalies in the High Arctic in Winter ... |
title_sort |
extreme surface energy budget anomalies in the high arctic in winter ... |
publisher |
ETH Zurich |
publishDate |
2023 |
url |
https://dx.doi.org/10.3929/ethz-b-000614002 http://hdl.handle.net/20.500.11850/614002 |
genre |
Arctic Sea ice Alaska |
genre_facet |
Arctic Sea ice Alaska |
op_doi |
https://doi.org/10.3929/ethz-b-000614002 |
_version_ |
1797575891158564864 |