Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea
There were several anomalously cold winter weather regimes in Russia in the early 21st century. These regimes were usually associated with a blocking anticyclone south of the Barents Sea. Numerical simulations with an atmospheric general circulation model (AGCM) using prescribed sea-ice concentratio...
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Online Access: | https://oceanrep.geomar.de/id/eprint/33400/ https://oceanrep.geomar.de/id/eprint/33400/1/Semenov.pdf https://doi.org/10.1134/S0001433816030105 |
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ftoceanrep:oai:oceanrep.geomar.de:33400 2023-05-15T15:06:12+02:00 Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea Semenov, Vladimir A. 2016-05 text https://oceanrep.geomar.de/id/eprint/33400/ https://oceanrep.geomar.de/id/eprint/33400/1/Semenov.pdf https://doi.org/10.1134/S0001433816030105 en eng MAIK Nauka/Interperiodica Springer https://oceanrep.geomar.de/id/eprint/33400/1/Semenov.pdf Semenov, V. A. (2016) Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea. Izvestiya, Atmospheric and Oceanic Physics, 52 (3). pp. 225-233. DOI 10.1134/S0001433816030105 <https://doi.org/10.1134/S0001433816030105>. doi:10.1134/S0001433816030105 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1134/S0001433816030105 2023-04-07T15:26:43Z There were several anomalously cold winter weather regimes in Russia in the early 21st century. These regimes were usually associated with a blocking anticyclone south of the Barents Sea. Numerical simulations with an atmospheric general circulation model (AGCM) using prescribed sea-ice concentration (SIC) data for different periods during the last 50 years showed that a rapid sea-ice area decline in the Barents Sea in the last decade could bring about the formation of such a blocking anticyclone and cooling over northern Eurasia. The SIC reduction in the former period, from the second half of the 1960s to the first half of the 1990s, results in a weaker response of opposite sign. This suggests a nonlinear atmospheric circulation response to the SIC reduction in the Barents Sea, which has been previously found in the idealized AGCM simulations. An impact of the Barents Sea SIC reduction on the North Atlantic Oscillation (NAO), in particular, on the formation of the anomalously low NAO index, is found. The results indicate an important role that the Barents Sea, a region with the largest variability of the ocean–atmosphere heat exchange in the Arctic in wintertime, plays in generating anomalous weather regimes in Russia. Article in Journal/Newspaper Arctic Barents Sea North Atlantic North Atlantic oscillation Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Barents Sea Izvestiya, Atmospheric and Oceanic Physics 52 3 225 233 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
There were several anomalously cold winter weather regimes in Russia in the early 21st century. These regimes were usually associated with a blocking anticyclone south of the Barents Sea. Numerical simulations with an atmospheric general circulation model (AGCM) using prescribed sea-ice concentration (SIC) data for different periods during the last 50 years showed that a rapid sea-ice area decline in the Barents Sea in the last decade could bring about the formation of such a blocking anticyclone and cooling over northern Eurasia. The SIC reduction in the former period, from the second half of the 1960s to the first half of the 1990s, results in a weaker response of opposite sign. This suggests a nonlinear atmospheric circulation response to the SIC reduction in the Barents Sea, which has been previously found in the idealized AGCM simulations. An impact of the Barents Sea SIC reduction on the North Atlantic Oscillation (NAO), in particular, on the formation of the anomalously low NAO index, is found. The results indicate an important role that the Barents Sea, a region with the largest variability of the ocean–atmosphere heat exchange in the Arctic in wintertime, plays in generating anomalous weather regimes in Russia. |
format |
Article in Journal/Newspaper |
author |
Semenov, Vladimir A. |
spellingShingle |
Semenov, Vladimir A. Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
author_facet |
Semenov, Vladimir A. |
author_sort |
Semenov, Vladimir A. |
title |
Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
title_short |
Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
title_full |
Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
title_fullStr |
Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
title_full_unstemmed |
Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea |
title_sort |
link between anomalously cold winters in russia and sea-ice decline in the barents sea |
publisher |
MAIK Nauka/Interperiodica |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/33400/ https://oceanrep.geomar.de/id/eprint/33400/1/Semenov.pdf https://doi.org/10.1134/S0001433816030105 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Barents Sea North Atlantic North Atlantic oscillation Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/33400/1/Semenov.pdf Semenov, V. A. (2016) Link between anomalously cold winters in Russia and sea-ice decline in the Barents Sea. Izvestiya, Atmospheric and Oceanic Physics, 52 (3). pp. 225-233. DOI 10.1134/S0001433816030105 <https://doi.org/10.1134/S0001433816030105>. doi:10.1134/S0001433816030105 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1134/S0001433816030105 |
container_title |
Izvestiya, Atmospheric and Oceanic Physics |
container_volume |
52 |
container_issue |
3 |
container_start_page |
225 |
op_container_end_page |
233 |
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1766337852225880064 |