Influence of the circumglobal wave-train on European summer precipitation
We investigate European summer (July-August) precipitation variability and its global teleconnections using the NCEP/NCAR reanalysis data (1950-2010) and a historical Coupled Model Intercomparison Project climate simulation (1901-2005) carried out using the ECHAM6/MPIOM climate model. A wavelike pat...
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Online Access: | http://hdl.handle.net/10278/3711209 https://doi.org/10.1007/s00382-013-1871-0 http://link.springer.de/link/service/journals/00382/index.htm |
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ftuniveneziairis:oai:iris.unive.it:10278/3711209 2024-04-14T08:15:43+00:00 Influence of the circumglobal wave-train on European summer precipitation Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide 2014 http://hdl.handle.net/10278/3711209 https://doi.org/10.1007/s00382-013-1871-0 http://link.springer.de/link/service/journals/00382/index.htm eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000338337700033 volume:43 issue:1-2 firstpage:503 lastpage:515 numberofpages:13 journal:CLIMATE DYNAMICS http://hdl.handle.net/10278/3711209 doi:10.1007/s00382-013-1871-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84906100419 http://link.springer.de/link/service/journals/00382/index.htm Circumglobal wave train European summer precipitation Summer North Atlantic Oscillation Atmospheric Science Settore GEO/12 - Oceanografia e Fisica dell'Atmosfera info:eu-repo/semantics/article 2014 ftuniveneziairis https://doi.org/10.1007/s00382-013-1871-0 2024-03-21T18:16:57Z We investigate European summer (July-August) precipitation variability and its global teleconnections using the NCEP/NCAR reanalysis data (1950-2010) and a historical Coupled Model Intercomparison Project climate simulation (1901-2005) carried out using the ECHAM6/MPIOM climate model. A wavelike pattern is found in the upper tropospheric levels (200 hPa) similar to the summer circumglobal wave train (CGT) extending from the North Pacific to the Eurasian region. The positive phase of the CGT is associated with upper level anomalous low (high) pressure over western (eastern) Europe. It is further associated with a dipole-like precipitation pattern over Europe entailing significantly enhanced (reduced) precipitation over the western (eastern) region. The anomalous circulation features and associated summer precipitation pattern over Europe inverts for the negative CGT phase. Accordingly, the global teleconnection pattern of a precipitation index summarizing summer precipitation over Western Europe entails an upper level signature which consists of a CGT-like wave pattern extending from the North Pacific to Eurasia. The imprint of the CGT on European summer precipitation is distinct from that of the summer North Atlantic Oscillation, despite the two modes of variability bear strong similarities in their upper level atmospheric pattern over Western Europe. The analysis of simulated CGT features and of its climatic implications for the European region substantiates the existence of the CGT-European summer precipitation connection. The summer CGT in the mid-latitude therefore adds to the list of the modes of large-scale atmospheric variability significantly influencing European summer precipitation variability. © 2013 Springer-Verlag Berlin Heidelberg. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Pacific Climate Dynamics 43 1-2 503 515 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
Circumglobal wave train European summer precipitation Summer North Atlantic Oscillation Atmospheric Science Settore GEO/12 - Oceanografia e Fisica dell'Atmosfera |
spellingShingle |
Circumglobal wave train European summer precipitation Summer North Atlantic Oscillation Atmospheric Science Settore GEO/12 - Oceanografia e Fisica dell'Atmosfera Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide Influence of the circumglobal wave-train on European summer precipitation |
topic_facet |
Circumglobal wave train European summer precipitation Summer North Atlantic Oscillation Atmospheric Science Settore GEO/12 - Oceanografia e Fisica dell'Atmosfera |
description |
We investigate European summer (July-August) precipitation variability and its global teleconnections using the NCEP/NCAR reanalysis data (1950-2010) and a historical Coupled Model Intercomparison Project climate simulation (1901-2005) carried out using the ECHAM6/MPIOM climate model. A wavelike pattern is found in the upper tropospheric levels (200 hPa) similar to the summer circumglobal wave train (CGT) extending from the North Pacific to the Eurasian region. The positive phase of the CGT is associated with upper level anomalous low (high) pressure over western (eastern) Europe. It is further associated with a dipole-like precipitation pattern over Europe entailing significantly enhanced (reduced) precipitation over the western (eastern) region. The anomalous circulation features and associated summer precipitation pattern over Europe inverts for the negative CGT phase. Accordingly, the global teleconnection pattern of a precipitation index summarizing summer precipitation over Western Europe entails an upper level signature which consists of a CGT-like wave pattern extending from the North Pacific to Eurasia. The imprint of the CGT on European summer precipitation is distinct from that of the summer North Atlantic Oscillation, despite the two modes of variability bear strong similarities in their upper level atmospheric pattern over Western Europe. The analysis of simulated CGT features and of its climatic implications for the European region substantiates the existence of the CGT-European summer precipitation connection. The summer CGT in the mid-latitude therefore adds to the list of the modes of large-scale atmospheric variability significantly influencing European summer precipitation variability. © 2013 Springer-Verlag Berlin Heidelberg. |
author2 |
Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide |
format |
Article in Journal/Newspaper |
author |
Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide |
author_facet |
Saeed, Sajjad Van Lipzig, Nicole Müller, Wolfgang A. Saeed, Fahad Zanchettin, Davide |
author_sort |
Saeed, Sajjad |
title |
Influence of the circumglobal wave-train on European summer precipitation |
title_short |
Influence of the circumglobal wave-train on European summer precipitation |
title_full |
Influence of the circumglobal wave-train on European summer precipitation |
title_fullStr |
Influence of the circumglobal wave-train on European summer precipitation |
title_full_unstemmed |
Influence of the circumglobal wave-train on European summer precipitation |
title_sort |
influence of the circumglobal wave-train on european summer precipitation |
publishDate |
2014 |
url |
http://hdl.handle.net/10278/3711209 https://doi.org/10.1007/s00382-013-1871-0 http://link.springer.de/link/service/journals/00382/index.htm |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000338337700033 volume:43 issue:1-2 firstpage:503 lastpage:515 numberofpages:13 journal:CLIMATE DYNAMICS http://hdl.handle.net/10278/3711209 doi:10.1007/s00382-013-1871-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84906100419 http://link.springer.de/link/service/journals/00382/index.htm |
op_doi |
https://doi.org/10.1007/s00382-013-1871-0 |
container_title |
Climate Dynamics |
container_volume |
43 |
container_issue |
1-2 |
container_start_page |
503 |
op_container_end_page |
515 |
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1796314132891303936 |