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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ftninstnf:oai:brage.nina.no:11250/2402999 2024-06-23T07:49:06+00:00 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. northern Norway, Sweden Funland, Svalbard, Jan Mayen 2016 application/pdf http://hdl.handle.net/11250/2402999 https://doi.org/10.1175/JCLI-D-15-0763.1 eng eng Norges forskningsråd 216434 Journal of Climate 2016 (29) urn:issn:1520-0442 http://hdl.handle.net/11250/2402999 https://doi.org/10.1175/JCLI-D-15-0763.1, cristin:1373407 6223-6244 29 Journal of Climate Nordic arctic region northern Norway Sweden Finland Svalbard Jan Mayen Journal article Peer reviewed 2016 ftninstnf https://doi.org/10.1175/JCLI-D-15-0763.1 2024-06-07T03:57:56Z 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 JanMayen. 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 decade21 for the arctic islands and 3–7 days decade21 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 Jan Mayen Northern Norway Svalbard Norwegian Institute for Nature Research: Brage NINA 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 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
Nordic arctic region northern Norway Sweden Finland Svalbard Jan Mayen |
spellingShingle |
Nordic arctic region northern Norway Sweden Finland Svalbard Jan Mayen 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 |
topic_facet |
Nordic arctic region northern Norway Sweden Finland Svalbard Jan Mayen |
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 JanMayen. 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 decade21 for the arctic islands and 3–7 days decade21 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. |
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 |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2402999 https://doi.org/10.1175/JCLI-D-15-0763.1 |
op_coverage |
northern Norway, Sweden Funland, Svalbard, Jan Mayen |
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 Jan Mayen Northern Norway Svalbard |
genre_facet |
Arctic Jan Mayen Northern Norway Svalbard |
op_source |
6223-6244 29 Journal of Climate |
op_relation |
Norges forskningsråd 216434 Journal of Climate 2016 (29) urn:issn:1520-0442 http://hdl.handle.net/11250/2402999 https://doi.org/10.1175/JCLI-D-15-0763.1, cristin:1373407 |
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 |
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1802639365603590144 |