Overview of the MOSAiC expedition: Physical oceanography

Autor: Benjamin Rabe, Céline Heuzé, Julia Regnery, Yevgeny Aksenov, Jacob Allerholt, Marylou Athanase, Youcheng Bai, Chris Basque, Dorothea Bauch, Till M. Baumann, Dake Chen, Sylvia T. Cole, Lisa Craw, Andrew Davies, Ellen Damm, Klaus Dethloff, Dmitry V. Divine, Francesca Doglioni, Falk Ebert, Ying-Chih Fang, Ilker Fer, Allison A. Fong, Rolf Gradinger, Mats A. Granskog, Rainer Graupner, Christian Haas, Hailun He, Yan He, Mario Hoppmann, Markus Janout, David Kadko, Torsten Kanzow, Salar Karam, Yusuke Kawaguchi, Zoe Koenig, Bin Kong, Richard A. Krishfield, Thomas Krumpen, David Kuhlmey, Ivan Kuznetsov, Musheng Lan, Georgi Laukert, Ruibo Lei, Tao Li, Sinhué Torres-Valdés, Lina Lin, Long Lin, Hailong Liu, Na Liu, Brice Loose, Xiaobing Ma, Rosalie McKay, Maria Mallet, Robbie D. C. Mallett, Wieslaw Maslowski, Christian Mertens, Volker Mohrholz, Morven Muilwijk, Marcel Nicolaus, Jeffrey K. O’Brien, Donald Perovich, Jian Ren, Markus Rex, Natalia Ribeiro, Annette Rinke, Janin Schaffer, Ingo Schuffenhauer, Kirstin Schulz, Matthew D. Shupe, William Shaw, Vladimir Sokolov, Anja Sommerfeld, Gunnar Spreen, Timothy Stanton, Mark Stephens, Jie Su, Natalia Sukhikh, Arild Sundfjord, Karolin Thomisch, Sandra Tippenhauer, John M. Toole, Myriel Vredenborg, Maren Walter, Hangzhou Wang, Lei Wang, Yuntao Wang, Manfred Wendisch, Jinping Zhao, Meng Zhou, Jialiang Zhu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Elementa: Science of the Anthropocene
EPIC3Elementa: Science of the Anthropocene, 10(1), ISSN: 2325-1026
Popis: Arctic Ocean properties and processes are highly relevant to the regional and global coupled climate system, yet still scarcely observed, especially in winter. Team OCEAN conducted a full year of physical oceanography observations as part of the Multidisciplinary drifting Observatory for the Study of the Arctic Climate (MOSAiC), a drift with the Arctic sea ice from October 2019 to September 2020. An international team designed and implemented the program to characterize the Arctic Ocean system in unprecedented detail, from the seafloor to the air-sea ice-ocean interface, from sub-mesoscales to pan-Arctic. The oceanographic measurements were coordinated with the other teams to explore the ocean physics and linkages to the climate and ecosystem. This paper introduces the major components of the physical oceanography program and complements the other team overviews of the MOSAiC observational program. Team OCEAN’s sampling strategy was designed around hydrographic ship-, ice- and autonomous platform-based measurements to improve the understanding of regional circulation and mixing processes. Measurements were carried out both routinely, with a regular schedule, and in response to storms or opening leads. Here we present along-drift time series of hydrographic properties, allowing insights into the seasonal and regional evolution of the water column from winter in the Laptev Sea to early summer in Fram Strait: freshening of the surface, deepening of the mixed layer, increase in temperature and salinity of the Atlantic Water. We also highlight the presence of Canada Basin deep water intrusions and a surface meltwater layer in leads. MOSAiC most likely was the most comprehensive program ever conducted over the ice-covered Arctic Ocean. While data analysis and interpretation are ongoing, the acquired datasets will support a wide range of physical oceanography and multi-disciplinary research. They will provide a significant foundation for assessing and advancing modeling capabilities in the Arctic Ocean.
Databáze: OpenAIRE
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