Changes in winter warming events in the Nordic Arctic Region
In recent years extreme winter warming events have been reported in arctic areas. These events are characterized as extraordinarily warm weather episodes, occasionally combined with intense rainfall, causing ecological disturbance and challenges for arctic societies and infrastructure. Ground-ice fo...
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ftoslouniv:oai:www.duo.uio.no:10852/52460 2023-05-15T14:27:37+02:00 Changes in winter warming events in the Nordic Arctic Region Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. 2016-08-17T10:57:15Z http://hdl.handle.net/10852/52460 http://urn.nb.no/URN:NBN:no-55798 https://doi.org/10.1175/JCLI-D-15-0763.1 EN eng American Meteorological Society http://urn.nb.no/URN:NBN:no-55798 Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. . Changes in winter warming events in the Nordic Arctic Region. Journal of Climate. 2016 http://hdl.handle.net/10852/52460 1373407 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Climate&rft.volume=&rft.spage=&rft.date=2016 Journal of Climate http://dx.doi.org/10.1175/JCLI-D-15-0763.1 URN:NBN:no-55798 Fulltext https://www.duo.uio.no/bitstream/handle/10852/52460/1/Tommervik-Changes-in-WinterJ-Climate-2016.pdf 0894-8755 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2016 ftoslouniv https://doi.org/10.1175/JCLI-D-15-0763.1 2020-06-21T08:49:58Z In recent years extreme winter warming events have been reported in arctic areas. These events are characterized as extraordinarily warm weather episodes, occasionally combined with intense rainfall, causing ecological disturbance and challenges for arctic societies and infrastructure. Ground-ice formation due to winter rain or melting prevents ungulates from grazing, leads to vegetation browning, and impacts soil temperatures. The authors analyze changes in frequency and intensity of winter warming events in the Nordic arctic region—northern Norway, Sweden, and Finland, including the arctic islands Svalbard and Jan Mayen. This study identifies events in the longest available records of daily temperature and precipitation, as well as in future climate scenarios, and performs analyses of long-term trends for climate indices aimed to capture these individual events. Results show high frequencies of warm weather events during the 1920s–30s and the past 15 years (2000–14), causing weak positive trends over the past 90 years (1924–2014). In contrast, strong positive trends in occurrence and intensity for all climate indices are found for the past 50 years with, for example, increased rates for number of melt days of up to 9.2 days decade−1 for the arctic islands and 3–7 days decade−1 for the arctic mainland. Regional projections for the twenty-first century indicate a significant enhancement of the frequency and intensity of winter warming events. For northern Scandinavia, the simulations indicate a doubling in the number of warming events, compared to 1985–2014, while the projected frequencies for the arctic islands are up to 3 times higher. Article in Journal/Newspaper Arctic Arctic Jan Mayen Northern Norway Svalbard Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Jan Mayen Norway Svalbard Svalbard ENVELOPE(20.000,20.000,78.000,78.000) Journal of Climate 29 17 6223 6244 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
In recent years extreme winter warming events have been reported in arctic areas. These events are characterized as extraordinarily warm weather episodes, occasionally combined with intense rainfall, causing ecological disturbance and challenges for arctic societies and infrastructure. Ground-ice formation due to winter rain or melting prevents ungulates from grazing, leads to vegetation browning, and impacts soil temperatures. The authors analyze changes in frequency and intensity of winter warming events in the Nordic arctic region—northern Norway, Sweden, and Finland, including the arctic islands Svalbard and Jan Mayen. This study identifies events in the longest available records of daily temperature and precipitation, as well as in future climate scenarios, and performs analyses of long-term trends for climate indices aimed to capture these individual events. Results show high frequencies of warm weather events during the 1920s–30s and the past 15 years (2000–14), causing weak positive trends over the past 90 years (1924–2014). In contrast, strong positive trends in occurrence and intensity for all climate indices are found for the past 50 years with, for example, increased rates for number of melt days of up to 9.2 days decade−1 for the arctic islands and 3–7 days decade−1 for the arctic mainland. Regional projections for the twenty-first century indicate a significant enhancement of the frequency and intensity of winter warming events. For northern Scandinavia, the simulations indicate a doubling in the number of warming events, compared to 1985–2014, while the projected frequencies for the arctic islands are up to 3 times higher. |
format |
Article in Journal/Newspaper |
author |
Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. |
spellingShingle |
Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. Changes in winter warming events in the Nordic Arctic Region |
author_facet |
Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. |
author_sort |
Vikhamar-Schuler, Dagrun |
title |
Changes in winter warming events in the Nordic Arctic Region |
title_short |
Changes in winter warming events in the Nordic Arctic Region |
title_full |
Changes in winter warming events in the Nordic Arctic Region |
title_fullStr |
Changes in winter warming events in the Nordic Arctic Region |
title_full_unstemmed |
Changes in winter warming events in the Nordic Arctic Region |
title_sort |
changes in winter warming events in the nordic arctic region |
publisher |
American Meteorological Society |
publishDate |
2016 |
url |
http://hdl.handle.net/10852/52460 http://urn.nb.no/URN:NBN:no-55798 https://doi.org/10.1175/JCLI-D-15-0763.1 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) ENVELOPE(20.000,20.000,78.000,78.000) |
geographic |
Arctic Browning Jan Mayen Norway Svalbard Svalbard |
geographic_facet |
Arctic Browning Jan Mayen Norway Svalbard Svalbard |
genre |
Arctic Arctic Jan Mayen Northern Norway Svalbard |
genre_facet |
Arctic Arctic Jan Mayen Northern Norway Svalbard |
op_source |
0894-8755 |
op_relation |
http://urn.nb.no/URN:NBN:no-55798 Vikhamar-Schuler, Dagrun Isaksen, Ketil Haugen, Jan Erik Tømmervik, Hans Luks, Bartlomiej Schuler, Thomas Vikhamar Bjerke, Jarle W. . Changes in winter warming events in the Nordic Arctic Region. Journal of Climate. 2016 http://hdl.handle.net/10852/52460 1373407 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Climate&rft.volume=&rft.spage=&rft.date=2016 Journal of Climate http://dx.doi.org/10.1175/JCLI-D-15-0763.1 URN:NBN:no-55798 Fulltext https://www.duo.uio.no/bitstream/handle/10852/52460/1/Tommervik-Changes-in-WinterJ-Climate-2016.pdf |
op_doi |
https://doi.org/10.1175/JCLI-D-15-0763.1 |
container_title |
Journal of Climate |
container_volume |
29 |
container_issue |
17 |
container_start_page |
6223 |
op_container_end_page |
6244 |
_version_ |
1766301446105464832 |