Do Atlantic‐European Weather Regimes Physically Exist?
Abstract The subseasonal variability of the extratropical large‐scale atmospheric flow is characterized by recurrent or quasi‐stationary circulation anomalies, termed weather regimes. Despite the usefulness of these regimes in numerous meteorological and socioeconomic applications, there is an ongoi...
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| Format: | Article |
| Language: | English |
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Wiley
2021-10-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2021GL095574 |
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| author | Assaf Hochman Gabriele Messori Julian F. Quinting Joaquim G. Pinto Christian M. Grams |
| author_facet | Assaf Hochman Gabriele Messori Julian F. Quinting Joaquim G. Pinto Christian M. Grams |
| author_sort | Assaf Hochman |
| collection | DOAJ |
| description | Abstract The subseasonal variability of the extratropical large‐scale atmospheric flow is characterized by recurrent or quasi‐stationary circulation anomalies, termed weather regimes. Despite the usefulness of these regimes in numerous meteorological and socioeconomic applications, there is an ongoing debate as to whether they represent physical modes of the atmosphere, or are merely useful statistical categorizations. Here, we answer this question for wintertime Atlantic‐European regimes. We argue that dynamical systems theory applied to a refined regime definition provides strong evidence in support of most weather regimes being physically meaningful. This finding underpins the broad relevance of weather regimes, for understanding the response of the atmosphere to external forcing, supporting subseasonal weather forecasting, and down scaling of climate projections. |
| format | Article |
| id | doaj-art-060287c5f1d14841b387a220ba04b08a |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-060287c5f1d14841b387a220ba04b08a2025-08-20T02:36:28ZengWileyGeophysical Research Letters0094-82761944-80072021-10-014820n/an/a10.1029/2021GL095574Do Atlantic‐European Weather Regimes Physically Exist?Assaf Hochman0Gabriele Messori1Julian F. Quinting2Joaquim G. Pinto3Christian M. Grams4Department of Tropospheric Research (IMK‐TRO) Institute of Meteorology and Climate Research Karlsruhe Institute of Technology (KIT) Karlsruhe GermanyDepartment of Earth Sciences and Centre of Natural Hazards and Disaster Science (CNDS) Uppsala University Uppsala SwedenDepartment of Tropospheric Research (IMK‐TRO) Institute of Meteorology and Climate Research Karlsruhe Institute of Technology (KIT) Karlsruhe GermanyDepartment of Tropospheric Research (IMK‐TRO) Institute of Meteorology and Climate Research Karlsruhe Institute of Technology (KIT) Karlsruhe GermanyDepartment of Tropospheric Research (IMK‐TRO) Institute of Meteorology and Climate Research Karlsruhe Institute of Technology (KIT) Karlsruhe GermanyAbstract The subseasonal variability of the extratropical large‐scale atmospheric flow is characterized by recurrent or quasi‐stationary circulation anomalies, termed weather regimes. Despite the usefulness of these regimes in numerous meteorological and socioeconomic applications, there is an ongoing debate as to whether they represent physical modes of the atmosphere, or are merely useful statistical categorizations. Here, we answer this question for wintertime Atlantic‐European regimes. We argue that dynamical systems theory applied to a refined regime definition provides strong evidence in support of most weather regimes being physically meaningful. This finding underpins the broad relevance of weather regimes, for understanding the response of the atmosphere to external forcing, supporting subseasonal weather forecasting, and down scaling of climate projections.https://doi.org/10.1029/2021GL095574subseasonal variabilityextratropical weather regimesclimate dynamicsEuropeEuro‐Atlantic |
| spellingShingle | Assaf Hochman Gabriele Messori Julian F. Quinting Joaquim G. Pinto Christian M. Grams Do Atlantic‐European Weather Regimes Physically Exist? Geophysical Research Letters subseasonal variability extratropical weather regimes climate dynamics Europe Euro‐Atlantic |
| title | Do Atlantic‐European Weather Regimes Physically Exist? |
| title_full | Do Atlantic‐European Weather Regimes Physically Exist? |
| title_fullStr | Do Atlantic‐European Weather Regimes Physically Exist? |
| title_full_unstemmed | Do Atlantic‐European Weather Regimes Physically Exist? |
| title_short | Do Atlantic‐European Weather Regimes Physically Exist? |
| title_sort | do atlantic european weather regimes physically exist |
| topic | subseasonal variability extratropical weather regimes climate dynamics Europe Euro‐Atlantic |
| url | https://doi.org/10.1029/2021GL095574 |
| work_keys_str_mv | AT assafhochman doatlanticeuropeanweatherregimesphysicallyexist AT gabrielemessori doatlanticeuropeanweatherregimesphysicallyexist AT julianfquinting doatlanticeuropeanweatherregimesphysicallyexist AT joaquimgpinto doatlanticeuropeanweatherregimesphysicallyexist AT christianmgrams doatlanticeuropeanweatherregimesphysicallyexist |