The Western Mediterranean summer variability and its feedbacks
The anomalous climatic variability of the Western Mediterranean in summer, its relationships with the large scale climatic teleconnection modes and its feedbacks from some of these modes are the targets of this study. The most important trait of this variability is the recurrence of warm and cold ep...
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ftunibolognairis:oai:cris.unibo.it:11585/902631 2024-04-14T08:15:30+00:00 The Western Mediterranean summer variability and its feedbacks OrtizBevia M. J. Alvarez-Garcia F. J. de Elvira A. M. R. Liguori G. Carretero J. H. OrtizBevia M.J. Alvarez-Garcia F.J. de Elvira A.M.R. Liguori G. Carretero J.H. 2012 ELETTRONICO https://hdl.handle.net/11585/902631 https://doi.org/10.1007/s00382-012-1409-x eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000311203100022 volume:39 issue:12 firstpage:3103 lastpage:3120 numberofpages:18 journal:CLIMATE DYNAMICS https://hdl.handle.net/11585/902631 doi:10.1007/s00382-012-1409-x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84869498993 Baltic European precipitation Feedback Interannual North Atlantic Oscillation Pacific North America Predictability Scandinavia Stochastic model Teleconnection indice Western Mediterranean summer info:eu-repo/semantics/article 2012 ftunibolognairis https://doi.org/10.1007/s00382-012-1409-x 2024-03-21T16:49:43Z The anomalous climatic variability of the Western Mediterranean in summer, its relationships with the large scale climatic teleconnection modes and its feedbacks from some of these modes are the targets of this study. The most important trait of this variability is the recurrence of warm and cold episodes, that take place at 2-4 year intervals, and which are monitored in the Western Mediterranean Index. We find that the Western Mediterranean events are part of a basin scale mode, and are related to the previous spring atmospheric anomalies. These anomalies are related mainly to the Pacific North America teleconnection pattern and the North Atlantic Oscillation, but also to a number of other climatic modes, connected with the previous two, as the Southern Oscillation, the Indian Core Monsoon and the Scandinavian teleconnection pattern. We identify the main spatial and temporal traits of the Western Mediterranean summer variability, the physical mechanisms at play in the generation of the events and their impacts. Considering the Atlantic Ocean, the Mediterranean events influence the sea surface temperature in the southeastern part of the North Atlantic Gyre. Additionally, they are significantly related to summer precipitation anomalies of the opposite sign in the Baltic basin (Central Germany and Poland) and near the Black Sea. We then estimate the mutual influence that the anomalous previous state of the Western Mediterranean, of the Pacific North America teleconnection pattern and of the North Atlantic Oscillation have on their summer conditions using a simple stochastic model. As the summer Western Mediterranean events have an influence on a part of the Baltic basin, we propose a second stochastic model in order to investigate if thereafter the Baltic basin variability will feedback on the Western Mediterranean sea surface temperature anomalies. Among the variables included in the second model are, in addition to the Western Mediterranean previous state, that of the Baltic Sea and of the Scandinavian ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Indian Pacific Climate Dynamics 39 12 3103 3120 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Baltic European precipitation Feedback Interannual North Atlantic Oscillation Pacific North America Predictability Scandinavia Stochastic model Teleconnection indice Western Mediterranean summer |
spellingShingle |
Baltic European precipitation Feedback Interannual North Atlantic Oscillation Pacific North America Predictability Scandinavia Stochastic model Teleconnection indice Western Mediterranean summer OrtizBevia M. J. Alvarez-Garcia F. J. de Elvira A. M. R. Liguori G. Carretero J. H. The Western Mediterranean summer variability and its feedbacks |
topic_facet |
Baltic European precipitation Feedback Interannual North Atlantic Oscillation Pacific North America Predictability Scandinavia Stochastic model Teleconnection indice Western Mediterranean summer |
description |
The anomalous climatic variability of the Western Mediterranean in summer, its relationships with the large scale climatic teleconnection modes and its feedbacks from some of these modes are the targets of this study. The most important trait of this variability is the recurrence of warm and cold episodes, that take place at 2-4 year intervals, and which are monitored in the Western Mediterranean Index. We find that the Western Mediterranean events are part of a basin scale mode, and are related to the previous spring atmospheric anomalies. These anomalies are related mainly to the Pacific North America teleconnection pattern and the North Atlantic Oscillation, but also to a number of other climatic modes, connected with the previous two, as the Southern Oscillation, the Indian Core Monsoon and the Scandinavian teleconnection pattern. We identify the main spatial and temporal traits of the Western Mediterranean summer variability, the physical mechanisms at play in the generation of the events and their impacts. Considering the Atlantic Ocean, the Mediterranean events influence the sea surface temperature in the southeastern part of the North Atlantic Gyre. Additionally, they are significantly related to summer precipitation anomalies of the opposite sign in the Baltic basin (Central Germany and Poland) and near the Black Sea. We then estimate the mutual influence that the anomalous previous state of the Western Mediterranean, of the Pacific North America teleconnection pattern and of the North Atlantic Oscillation have on their summer conditions using a simple stochastic model. As the summer Western Mediterranean events have an influence on a part of the Baltic basin, we propose a second stochastic model in order to investigate if thereafter the Baltic basin variability will feedback on the Western Mediterranean sea surface temperature anomalies. Among the variables included in the second model are, in addition to the Western Mediterranean previous state, that of the Baltic Sea and of the Scandinavian ... |
author2 |
OrtizBevia M.J. Alvarez-Garcia F.J. de Elvira A.M.R. Liguori G. Carretero J.H. |
format |
Article in Journal/Newspaper |
author |
OrtizBevia M. J. Alvarez-Garcia F. J. de Elvira A. M. R. Liguori G. Carretero J. H. |
author_facet |
OrtizBevia M. J. Alvarez-Garcia F. J. de Elvira A. M. R. Liguori G. Carretero J. H. |
author_sort |
OrtizBevia M. J. |
title |
The Western Mediterranean summer variability and its feedbacks |
title_short |
The Western Mediterranean summer variability and its feedbacks |
title_full |
The Western Mediterranean summer variability and its feedbacks |
title_fullStr |
The Western Mediterranean summer variability and its feedbacks |
title_full_unstemmed |
The Western Mediterranean summer variability and its feedbacks |
title_sort |
western mediterranean summer variability and its feedbacks |
publishDate |
2012 |
url |
https://hdl.handle.net/11585/902631 https://doi.org/10.1007/s00382-012-1409-x |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000311203100022 volume:39 issue:12 firstpage:3103 lastpage:3120 numberofpages:18 journal:CLIMATE DYNAMICS https://hdl.handle.net/11585/902631 doi:10.1007/s00382-012-1409-x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84869498993 |
op_doi |
https://doi.org/10.1007/s00382-012-1409-x |
container_title |
Climate Dynamics |
container_volume |
39 |
container_issue |
12 |
container_start_page |
3103 |
op_container_end_page |
3120 |
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1796313858605842432 |