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Covariability between remote regions – often named teleconnections – are at the basis of our current knowledge of a large part of Earth’s climate variations and represent an important source of weather and climate predictability. Tropospheric and stratospheric pathways have been suggested to play a role in connecting internally-generated and radiatively-forced anomalies at mid-latitudes, as well as in settling tropical-extratropical and polar-nonpolar interactions. However, the underlying processes behind these linkages are still not properly understood, misled by different metrics and diagnostics, and/or generally poorly simulated by global climate models (GCMs). A continuous assessment of these atmospheric teleconnections is thus necessary, since advances in process understanding could translate into improving climate models and predictions.

This session aims at gathering studies on both empirical and modelling approaches, dealing with a dynamical characterization of mid-latitude atmospheric teleconnections. It invites contributions using observational datasets; coupled and uncoupled (atmosphere-only) GCM simulations; pre-industrial, present, and future climate conditions; idealised sensitivity experiments; or theoretical models.

Keynote talk:

Tido Semmler - Arctic influence on mid-latitude weather and climate: recent progress and future prospects

Convener: Javier Garcia-Serrano | Co-Conveners: Paolo Davini, Yannick Peings
| Wed, 11 Sep, 13:30–18:00|Room S1
| Attendance Thu, 12 Sep, 09:30–10:30 | Display Wed, 11 Sep, 13:30–Fri, 13 Sep, 13:30|Sports Hall

Wednesday, 11 September 2019 | Room S1

Chairperson: Javier Garcia-Serrano; Paolo Davini
Polar-non polar linkages
13:30–14:00 |
| solicited
| presentation
Tido Semmler
14:00–14:15 |
Peter Yu Feng Siew, Camille Li, Stefan Sobolowski, and Martin King
14:15–14:30 |
| presentation
Andrea Böhnisch, Ralf Ludwig, and Martin Leduc
14:30–14:45 |
Anne Seidenglanz, Panos Athanasiadis, Paolo Ruggieri, and Silvio Gualdi
14:45–15:00 |
Martin Stendel, Shuting Yang, Peter Langen, Christian Rodehacke, Ruth Mottram, and Jens Hesselbjerg Christensen
15:00–15:15 |
Evangelos Tyrlis, Daniela Matei, Jürgen Bader, Elisa Manzini, Jinro Ukita, and Hisashi Nakamura
15:15–15:30 |
Ivana Herceg-Bulic and Sara Ivasic
Coffee break
Chairperson: Javier Garcia-Serrano; Paolo Davini
Tropical-extratropical teleconnections
16:15–16:30 |
Martin Peter King, Camille Li, and Stefan Sobolowski
16:30–16:45 |
Martin Andrews, Jeff Knight, Adam Scaife, Yixiong Lu, Tongwen Wu, Lesley Gray, and Verena Schenzinger
Mid-latitude climate variability
17:00–17:15 |
| presentation
Emanuele Di Carlo, Paolo Ruggieri, Paolo Davini, Stefano Tibaldi, and Susanna Corti
17:15–17:30 |
Paolo Ruggieri, Alessio Bellucci, Dario Nicolì, Panos Athanasiadis, Christophe Cassou, Frederic Castruccio, Gokhan Danabasoglu, Paolo Davini, Guillaume Gastineau, Jens Grieger, Ben Harvey, Dan Hodson, Christopher O'reilly, Belen Rodriguez-Fonseca, Yohan Ruprich-Robert, Emilia Sanchez Gomez, Rowan Sutton, and Simon Wild
17:30–17:45 |
Dario Nicolì, Alessio Bellucci, Doroteaciro Iovino, Paolo Ruggieri, and Silvio Gualdi
17:45–18:00 |
Thomas Oudar, Julien Cattiaux, Hervé Douville, David Saint-Martin, and Romain Roehrig

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