Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia
In this study, the barotropic mode of thermal forcing responsible for the difference in temperature between the Arctic and midlatitude regions was simplified by the nonlinear Schrӧdinger equation with disturbance terms using multiscale perturbation methods. The impact of Arctic warming on dipole blo...
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ftmdpi:oai:mdpi.com:/2073-4433/10/5/249/ 2023-08-20T04:03:24+02:00 Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia Chun Liu Yuefeng Li Wei Song agris 2019-05-06 application/pdf https://doi.org/10.3390/atmos10050249 EN eng Multidisciplinary Digital Publishing Institute Meteorology https://dx.doi.org/10.3390/atmos10050249 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 10; Issue 5; Pages: 249 nonlinear Schrӧdinger equation direct perturbation theory for solitons Arctic warming cold Eurasia dipole blocking Text 2019 ftmdpi https://doi.org/10.3390/atmos10050249 2023-07-31T22:15:03Z In this study, the barotropic mode of thermal forcing responsible for the difference in temperature between the Arctic and midlatitude regions was simplified by the nonlinear Schrӧdinger equation with disturbance terms using multiscale perturbation methods. The impact of Arctic warming on dipole blocking, which results in temperature anomalies over the midlatitudes of Eurasia, was studied using the direct perturbation theory for solitons. The results showed: (1) if only nonlinear effects exist between waves and zonal flows, a dipole blocking structure can present in the westerly air flows; (2) the temperature gradient between midlatitude warming and Arctic cooling inhibits the development of dipole blocking structures; and (3) Arctic warming is theoretically more conducive to intensifying the strength of dipole blocking and meridional activities over Eurasia and is more likely to cause the southward invasion of cold air from the Arctic, thereby inducing regionally cold and even extremely cold events in the mid- and low latitudes of Eurasia, including eastern China. Text Arctic MDPI Open Access Publishing Arctic Atmosphere 10 5 249 |
institution |
Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
nonlinear Schrӧdinger equation direct perturbation theory for solitons Arctic warming cold Eurasia dipole blocking |
spellingShingle |
nonlinear Schrӧdinger equation direct perturbation theory for solitons Arctic warming cold Eurasia dipole blocking Chun Liu Yuefeng Li Wei Song Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
topic_facet |
nonlinear Schrӧdinger equation direct perturbation theory for solitons Arctic warming cold Eurasia dipole blocking |
description |
In this study, the barotropic mode of thermal forcing responsible for the difference in temperature between the Arctic and midlatitude regions was simplified by the nonlinear Schrӧdinger equation with disturbance terms using multiscale perturbation methods. The impact of Arctic warming on dipole blocking, which results in temperature anomalies over the midlatitudes of Eurasia, was studied using the direct perturbation theory for solitons. The results showed: (1) if only nonlinear effects exist between waves and zonal flows, a dipole blocking structure can present in the westerly air flows; (2) the temperature gradient between midlatitude warming and Arctic cooling inhibits the development of dipole blocking structures; and (3) Arctic warming is theoretically more conducive to intensifying the strength of dipole blocking and meridional activities over Eurasia and is more likely to cause the southward invasion of cold air from the Arctic, thereby inducing regionally cold and even extremely cold events in the mid- and low latitudes of Eurasia, including eastern China. |
format |
Text |
author |
Chun Liu Yuefeng Li Wei Song |
author_facet |
Chun Liu Yuefeng Li Wei Song |
author_sort |
Chun Liu |
title |
Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
title_short |
Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
title_full |
Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
title_fullStr |
Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
title_full_unstemmed |
Variation in Dipole Blocking Associated with Arctic Warming in Winter: Potential Contributions to Cold and Extremely Cold Events over Eurasia |
title_sort |
variation in dipole blocking associated with arctic warming in winter: potential contributions to cold and extremely cold events over eurasia |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/atmos10050249 |
op_coverage |
agris |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmosphere; Volume 10; Issue 5; Pages: 249 |
op_relation |
Meteorology https://dx.doi.org/10.3390/atmos10050249 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos10050249 |
container_title |
Atmosphere |
container_volume |
10 |
container_issue |
5 |
container_start_page |
249 |
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1774713760531873792 |