The North Atlantic exhibits a high level of natural variability from interannual to centennial time scales, making it difficult to extract trends from observational time series. Climate models, however, predict major changes in this region, which in turn will influence sea level and climate, especially in western Europe and North America. In the last years, several projects have been focused on the Atlantic circulation changes, for instance OVIDE, RACE, OSNAP, and ACSIS. Another important issue is the interaction between the atmosphere and the ocean as well as the cryosphere with the ocean, and how this affects the climate.
We welcome contributions from observers and modelers on the following topics:

-- climate relevant processes in the North Atlantic region in the atmosphere, ocean, and cryosphere
-- response of the atmosphere to changes in the North Atlantic
-- atmosphere - ocean coupling in the North Atlantic realm on time scales from years to centuries (observations, theory and coupled GCMs)
-- interpretation of observed variability in the atmosphere and the ocean in the North Atlantic sector
-- Comparison of observed and simulated climate variability in the North Atlantic sector and Europe
-- Dynamics of the Atlantic meridional overturning circulation
-- variability in the ocean and the atmosphere in the North Atlantic sector on a broad range of time scales
-- changes in adjacent seas related to changes in the North Atlantic
-- role of water mass transformation and circulation changes on anthropogenic carbon and other parameters
-- linkage between the observational records and proxies from the recent past

Invited Speakers: Professor Ric Williams, University of Liverpool, UK
Dr. Arnaud Czaja, Imperial College, London, UK

Co-organized as AS1.17/CL2.02
Convener: Richard Greatbatch | Co-conveners: Monika Rhein, Bablu Sinha
| Tue, 09 Apr, 10:45–12:30, 14:00–18:00
Room N2
| Attendance Wed, 10 Apr, 08:30–10:15
Hall X4

Tuesday, 9 April 2019 | Room N2

Chairperson: Richard Greatbatch
11:00–11:15 |
Damien Desbruyères, Herlé Mercier, Guillaume Maze, and Nathalie Daniault
11:15–11:30 |
Simon Josey, Femke de Jong, Marilena Oltmanns, Kent Moore, and Robert Weller
11:30–11:45 |
Susan Lozier, Laifang Li, and Feili Li
11:45–12:00 |
Claus W. Böning, Klaus Getzlaff, Markus Scheinert, and Arne Biastoch
12:00–12:15 |
Achim Roessler, Christian Mertens, and Monika Rhein
12:15–12:30 |
David Smeed, Eleanor Frajka-Williams, William Johns, Molly Baringer, Ben Moat, Darren Rayner, and Denis Volkov
Lunch break
Chairperson: Bablu Sinha
14:15–14:30 |
Erica Madonna, Camille Li, and Justin J. Wettstein
14:30–14:45 |
Efi Rousi, Dim Coumou, Stephan Rahmstorf, and Stephen Griffies
14:45–15:00 |
Melissa Gervais, Jeffrey Shaman, and Yochanan Kushnir
15:00–15:15 |
Amy Bower, Astrid Pacini, Isabela le Bras, Heather Furey, Susan Lozier, Robert Pickart, Andree Ramsey, Fiamma Straneo, and Sijia Zou
15:15–15:30 |
Dagmar Kieke, Reiner Steinfeldt, Monika Rhein, Igor Yashayaev, and Birgit Klein
15:30–15:45 |
Ben Moat, Bablu Sinha, Simon Josey, Jon Robson, Pablo Ortega, Florian Sévellec, N. Penny Holliday, Gerard McCarthy, Adrian New, and Joel Hirschi
Coffee break
Chairperson: Monika Rhein
16:15–16:30 |
Astrid Pacini, Robert Pickart, Frank Bahr, Andree Ramsey, Daniel Torres, and Johannes Karstensen
16:30–16:45 |
Reiner Steinfeldt, Dagmar Kieke, and Monika Rhein
16:45–17:00 |
Yao Fu, Chunzai Wang, Peter Brandt, and Richard Greatbatch
17:00–17:15 |
Johann Jungclaus, Rohit Ghosh, Dian Putrasahan, Katja Lohmann, Juergen Bader, Elisa Manzini, Daniela Matei, Ralf Hand, and Paul Keil
17:15–17:30 |
Caroline Katsman, Nils Bruggemann, Stefanie Ypma, Sotiria Georgiou, Carine van der Boog, and Julie Pietrzak
17:30–17:45 |
Juan-Manuel Sayol, Caroline A. Katsman, Nils Brüggemann, and Henk A. Dijkstra
17:45–18:00 |
Patricia Zunino, Herlé Mercier, and Virginie Thierry