The rapid decline of Arctic sea ice in the last decade is a dramatic indicator of climate change.  The last 12 years have seen lower Arctic summer sea ice extents than in the previous 29 years of satellite records. The Arctic sea ice cover is now thinner, weaker and drifts faster. The ocean is also changing, the volume of freshwater stored in the Arctic and has increased as have the inputs of coastal runoff from Siberia and Greenland. Concurrently inflows from the Atlantic and Pacific Oceans have warmed. As the global surface temperature rises, the Arctic Ocean is speculated to become seasonally ice-free in the 21st century, which prompts us to revisit our perceptions of the Arctic system as a whole. What could the Arctic look like in the future? How are the present changes in the Arctic going to affect the lower latitudes? What aspects of the changing Arctic should future observations and modelling programs address? The scientific community is investing considerable effort in organising our current knowledge of the physical and biogeochemical properties of the Arctic, exploring poorly understood coupled atmosphere-sea-ice-ocean processes to improve prediction of future changes in the Arctic.
In this session, we invite contributions on a variety of aspects of past, present and future climates of the Arctic. We encourage submissions addressing interaction between ocean, atmosphere and sea ice and on studies linking changes in the Arctic to the global ocean. Submissions with a focus on emerging cryospheric, oceanic and biogeochemical processes and their implications are particularly welcome. The session promotes results from current Arctic programmes and discussions on future plans for Arctic Ocean modelling and measurement strategies. This session is cosponsored by the CLIVAR /CliC Northern Ocean Regional Panel (NORP) that aims to facilitate progress and identify scientific opportunities in (sub)Arctic ocean-sea-ice-atmosphere research.

Co-organized as AS4.10/CL2.03/CR6.3, co-sponsored by NORP
Convener: Yevgeny Aksenov | Co-conveners: Daniel Feltham, Benjamin Rabe, Paul A. Dodd, Daniela Flocco, Craig Lee, Julienne Stroeve, Andrew Wells
| Thu, 11 Apr, 08:30–12:30, 14:00–15:45
Room L4/5
| Attendance Thu, 11 Apr, 16:15–18:00
Hall X4

Attendance time: Thursday, 11 April 2019, 16:15–18:00 | Hall X4

Chairperson: Yevgeny Aksenov, Paul A. Dodd, Daniel Feltham, Daniela Flocco, Craig M. Lee, Benjamin Rabe and Andrew Wells,
X4.39 |
| Highlight
Markus Rex, Matthew Shupe, Klaus Dethloff, Anja Sommerfeld, and Benjamin Rabe
X4.40 |
Anais Bretones, Kerim Nisancioglu, Mari Fjalstad Jensen, and Mehmet Ilicak
X4.41 |
Agata Grynczel, Agnieszka Beszczynska-Moeller, and Waldemar Walczowski
X4.42 |
Claude Frankignoul, Amélie Simon, and Guillaume Gastineau
X4.43 |
Mario Hoppmann, Benjamin Rabe, Christian Katlein, Rick Krishfield, Eva-Maria Nöthig, Astrid Bracher, and Meri Korhonen
X4.44 |
Xiaoyong Yu, Annette Rinke, Wolfgang Dorn, Gunnar Spreen, Hiroshi Sumata, and Christof Luepkes
X4.45 |
Eunsook Heo, Soon-Il An, and Young Min Yang
X4.46 |
Natalia Vyazigina, Timokhov Leonid, and Mironov Eugene
X4.47 |
Daniel Feltham, Daniela Flocco, David Schroeder, Anthony Siahaan, and Yevgeny Aksenov
X4.48 |
Lucia Hosekova, Danny Feltham, David Schroeder, and Daniela Flocco
X4.49 |
Andrew Wells, Margaret Lindeman, and Mary-Louise Timmermans
X4.50 |
James Parkinson, Andrew Wells, Dan Martin, and Rich Katz
X4.52 |
Trygve Kvåle Løken, Atle Jensen, Kai Håkon Christensen, Malte Muller, and Jean Rabault
X4.53 |
Vladimir Ivanov, Mikhail Varentsov, Tatyana Matveeva, Irina Repina, Arseniy Artamonov, and Elena Khavina
X4.54 |
Ramdane Alkama, Alessandro Cescatti, Patrick C. Taylor, Lorea Garcia-San Martin, Herve Douville, Gregory Duveiller, Giovanni Forzieri, and Didier Swingedouw
X4.56 |
Understanding Arctic and Subpolar Gyre exchanges, means, and trends using The Arctic Subpolar gyre sTate Estimate
An Nguyen, Victor Ocaña, Patrick Heimbach, Arash Bigdeli, and Helen Pillar
X4.57 |
Andreas Münchow and Torsten Kanzow
X4.58 |
Malgorzata Merchel and Waldemar Walczowski
X4.59 |
Agnieszka Kujawa, Natalia Szymańska, Magdalena Łącka, Joanna Pawłowska, Małgorzata Kucharska, and Marek Zajączkowski
X4.60 |
Marika Marnela, Frank Nilsen, and Ragnheid Skogseth
X4.63 |
Water masses of the Barents/Kara Sea: modifications, causes thereof and further spreading
Cornelia Koeberle and Ruediger Gerdes
X4.65 |
Youngseok Choi, Chanhyung Jeon, Kyoung-Ho Cho, Taewook Park, and Jae-Hun Park
X4.66 |
Qi Shu, Fangli Qiao, Zhenya Song, Jiechen Zhao, and Xinfang Li
X4.68 |
Paul A. Dodd, Michael Karcher, Tore Hattermann, and Colin Stedmon
X4.69 |
Arctic Ocean near-surface circulation: preliminary results from a comparison between altimetry and in situ observations.
Francesca Doglioni, Robert Ricker, Wilken-Jon von Appen, Benjamin Rabe, and Torsten Kanzow
X4.70 |
Ahyoung Ku, Jae-Hun Park, YoungHo Seung, Youngseok Choi, Chanhyung Jeon, Koji Shimada, and Kyoung-Ho Cho