Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector
Recent studies of observational data suggest that Sea Surface Temperature (SST) anomalies in the Atlantic Ocean have a significant influence on the atmospheric circulation in the Atlantic-European sector in early winter and in spring. After reviewing this work and showing that the spring signal is p...
Published in: | Annals of Geophysics |
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Istituto Nazionale di Geofisica e Vulcanologia, INGV
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Online Access: | https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390 https://doi.org/10.4401/ag-3390 |
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ftjaog:oai:ojs.annalsofgeophysics.eu:article/3390 2023-05-15T18:18:33+02:00 Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector Frankignoul, C. Friederichs, P. Kestenare, E. 2003-12-25 application/pdf https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390 https://doi.org/10.4401/ag-3390 eng eng Istituto Nazionale di Geofisica e Vulcanologia, INGV https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390/3436 https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390 doi:10.4401/ag-3390 Annals of Geophysics; V. 46 N. 1 (2003) Annals of Geophysics; Vol. 46 No. 1 (2003) 2037-416X 1593-5213 air-sea interaction climate variability Atlantic SST anomalies 01.01.02. Climate info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2003 ftjaog https://doi.org/10.4401/ag-3390 2022-03-27T06:36:14Z Recent studies of observational data suggest that Sea Surface Temperature (SST) anomalies in the Atlantic Ocean have a significant influence on the atmospheric circulation in the Atlantic-European sector in early winter and in spring. After reviewing this work and showing that the spring signal is part of a global air-sea interaction, we analyze for comparison an ensemble of simulations with the ECHAM4 atmospheric general circulation model in T42 resolution forced by the observed distribution of SST and sea ice, and a simulation with the ECHAM4/OPA8 coupled model in T30 resolution. In the two cases, a significant influence of the Atlantic on the atmosphere is detected in the Atlantic-European sector. In the forced mode, ECHAM4 responds to SST anomalies from early spring to late summer, and also in early winter. The forcing involves SST anomalies not only in the tropical Atlantic, but also in the whole tropical band, suggesting a strong ENSO influence. The modeled signal resembles that seen in the observations in spring, but not in early winter. In the coupled mode, the Atlantic SST only has a significant influence on the atmosphere in summer. Although the SST anomaly is confined to the Atlantic, the summer signal shows some similarity with that seen in the forced simulations. However, there is no counterpart in the observations. Article in Journal/Newspaper Sea ice Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) Annals of Geophysics 46 1 |
institution |
Open Polar |
collection |
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftjaog |
language |
English |
topic |
air-sea interaction climate variability Atlantic SST anomalies 01.01.02. Climate |
spellingShingle |
air-sea interaction climate variability Atlantic SST anomalies 01.01.02. Climate Frankignoul, C. Friederichs, P. Kestenare, E. Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
topic_facet |
air-sea interaction climate variability Atlantic SST anomalies 01.01.02. Climate |
description |
Recent studies of observational data suggest that Sea Surface Temperature (SST) anomalies in the Atlantic Ocean have a significant influence on the atmospheric circulation in the Atlantic-European sector in early winter and in spring. After reviewing this work and showing that the spring signal is part of a global air-sea interaction, we analyze for comparison an ensemble of simulations with the ECHAM4 atmospheric general circulation model in T42 resolution forced by the observed distribution of SST and sea ice, and a simulation with the ECHAM4/OPA8 coupled model in T30 resolution. In the two cases, a significant influence of the Atlantic on the atmosphere is detected in the Atlantic-European sector. In the forced mode, ECHAM4 responds to SST anomalies from early spring to late summer, and also in early winter. The forcing involves SST anomalies not only in the tropical Atlantic, but also in the whole tropical band, suggesting a strong ENSO influence. The modeled signal resembles that seen in the observations in spring, but not in early winter. In the coupled mode, the Atlantic SST only has a significant influence on the atmosphere in summer. Although the SST anomaly is confined to the Atlantic, the summer signal shows some similarity with that seen in the forced simulations. However, there is no counterpart in the observations. |
format |
Article in Journal/Newspaper |
author |
Frankignoul, C. Friederichs, P. Kestenare, E. |
author_facet |
Frankignoul, C. Friederichs, P. Kestenare, E. |
author_sort |
Frankignoul, C. |
title |
Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
title_short |
Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
title_full |
Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
title_fullStr |
Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
title_full_unstemmed |
Influence of Atlantic SST anomalies on the atmospheric circulation in the Atlantic-European sector |
title_sort |
influence of atlantic sst anomalies on the atmospheric circulation in the atlantic-european sector |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia, INGV |
publishDate |
2003 |
url |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390 https://doi.org/10.4401/ag-3390 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Annals of Geophysics; V. 46 N. 1 (2003) Annals of Geophysics; Vol. 46 No. 1 (2003) 2037-416X 1593-5213 |
op_relation |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390/3436 https://www.annalsofgeophysics.eu/index.php/annals/article/view/3390 doi:10.4401/ag-3390 |
op_doi |
https://doi.org/10.4401/ag-3390 |
container_title |
Annals of Geophysics |
container_volume |
46 |
container_issue |
1 |
_version_ |
1766195169188642816 |