Journal ArticleDOI
Southern ocean carbon and heat impact on climate
Jean-Baptiste Sallée,E. Povl Abrahamsen,Matthis Auger,H.C. Ayres,Renuka Badhe,Jacqueline Boutin,J. Alexander Brearley,Casimir de Lavergne,Elise S. Droste,M.A. Du Plessis,David Ferreira,Isabelle Giddy,Birte Gülk,Nicolas Gruber,Mark Hague,Mario Hoppema,Simon A. Josey,Torsten Kanzow,Madlen Kimmritz,Margaret R. Lindeman,P. J. Llanillo,Natasha S. Lucas,Gurvan Madec,David P. Marshall,Andrew J. S. Meijers,Meredith P. Meredith,Martin Mohrmann,Pedro M. S. Monteiro,Aditya Narayanan,Alberto C. Naveira Garabato,Sarah-Anne Nicholson,Antonio Novellino,Malin Ödalen,Svein Østerhus,W. Park,Ryan Patmore,Fabien Roquet,Hanna S. Rosenthal,Tilla Roy,Ravikant Kumar Saurabh,Yona Silvy,Timothy P. Spira,Nadine Steiger,Andrew Styles,Sebastiaan Swart,Linus Vogt,Brian Ward +46 more
- Vol. 381
TLDR
The Southern Ocean Carbon and Heat Impact on Climate (SOCI) program as discussed by the authors was launched to understand and quantify variability of heat and carbon budgets in the Southern Ocean through an investigation of the key physical processes controlling exchanges between the atmosphere, ocean and sea ice using a combination of observational and modelling approaches.Abstract:
The Southern Ocean greatly contributes to the regulation of the global climate by controlling important heat and carbon exchanges between the atmosphere and the ocean. Rates of climate change on decadal timescales are therefore impacted by oceanic processes taking place in the Southern Ocean, yet too little is known about these processes. Limitations come both from the lack of observations in this extreme environment and its inherent sensitivity to intermittent processes at scales that are not well captured in current Earth system models. The Southern Ocean Carbon and Heat Impact on Climate programme was launched to address this knowledge gap, with the overall objective to understand and quantify variability of heat and carbon budgets in the Southern Ocean through an investigation of the key physical processes controlling exchanges between the atmosphere, ocean and sea ice using a combination of observational and modelling approaches. Here, we provide a brief overview of the programme, as well as a summary of some of the scientific progress achieved during its first half. Advances range from new evidence of the importance of specific processes in Southern Ocean ventilation rate (e.g. storm-induced turbulence, sea–ice meltwater fronts, wind-induced gyre circulation, dense shelf water formation and abyssal mixing) to refined descriptions of the physical changes currently ongoing in the Southern Ocean and of their link with global climate. This article is part of a discussion meeting issue ‘Heat and carbon uptake in the Southern Ocean: the state of the art and future priorities’.read more
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Journal ArticleDOI
The Southern Ocean mixed layer and its boundary fluxes: fine-scale observational progress and future research priorities
Sebastiaan Swart,M.A. Du Plessis,Sarah-Anne Nicholson,Pedro M. S. Monteiro,Lilian A. Dove,Sandy J. Thomalla,Andrew F. Thompson,Louise C. Biddle,Johan M. Edholm,Isabelle Giddy,Karen J. Heywood,Craig M. Lee,Amala Mahadevan,Geoffrey B. Shilling,Ronald Buss de Souza +14 more
TL;DR: In this paper , a review summarizes advances in mechanistic understanding, arising in part from observational programs using autonomous platforms, of the fine-scale processes (1 −100 km, hours-seasons) influencing the Southern Ocean mixed layer and its variability.
Journal ArticleDOI
Variability and Remote Controls of the Warm‐Water Halo and Taylor Cap at Maud Rise
Birte Gülk,Fabien Roquet,Alberto C. Naveira Garabato,Aditya Narayanan,Clément Rousset,Gurvan Madec +5 more
TL;DR: In this paper , the authors used two observational data sets, an eddy-permitting reanalysis product and regional high-resolution simulations, to investigate the interannual variability of the Halo and Taylor Cap for the period 2007-2022.
Journal ArticleDOI
Finale: impact of the ORCHESTRA/ENCORE programmes on Southern Ocean heat and carbon understanding
Andrew J. S. Meijers,Michael P. Meredith,Emily Shuckburgh,Elizabeth C. Kent,David Munday,Yvonne L. Firing,Brian A. King,Tim Smyth,Melanie J. Leng,A. J. George Nurser,Helene T. Hewitt,Alexandra Weiss,Mingxi Yang,Thomas Ball,J. Alexander Brearley,Emma Boland,Daniel C. Jones,Simon A. Josey,Jeremy P. Grist,Adam T. Blaker,Stavroula Biri,Margaret J. Yelland,Ciara Pimm,Shenjie Zhou,James Harle,Richard Cornes +25 more
TL;DR: The 5-year Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports (ORCHESTRA) programme and its 1-year extension ENCORE as discussed by the authors was an approximately 11-million-pound programme involving seven UK research centres that finished in March 2022.
Journal ArticleDOI
Heat and carbon uptake in the Southern Ocean: the state of the art and future priorities
TL;DR: The Southern Ocean is an extreme environment as mentioned in this paper and the vast area it covers, roaring winds, mountainous seas and treacherous ice all combine to make it both a challenge and a privilege to study.
References
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Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change
TL;DR: Drafting Authors: Neil Adger, Pramod Aggarwal, Shardul Agrawala, Joseph Alcamo, Abdelkader Allali, Oleg Anisimov, Nigel Arnell, Michel Boko, Osvaldo Canziani, Timothy Carter, Gino Casassa, Ulisses Confalonieri, Rex Victor Cruz, Edmundo de Alba Alcaraz, William Easterling, Christopher Field, Andreas Fischlin, Blair Fitzharris.
Journal ArticleDOI
The oceanic sink for anthropogenic CO2.
Christopher L. Sabine,Richard A. Feely,Nicolas Gruber,R.M. Key,Kitack Lee,John L. Bullister,Rik Wanninkhof,C. S. Wong,Douglas W.R. Wallace,Bronte Tilbrook,Frank J. Millero,Tsung-Hung Peng,Alexander Kozyr,T. Ono,Aida F. Ríos +14 more
TL;DR: Using inorganic carbon measurements from an international survey effort in the 1990s and a tracer-based separation technique, the authors estimate a global oceanic anthropogenic carbon dioxide (CO2) sink for the period from 1800 to 1994 of 118 19 petagrams of carbon.
Journal ArticleDOI
Mixed layer depth over the global ocean: An examination of profile data and a profile-based climatology
TL;DR: In this paper, a 2° resolution global climatology of the mixed layer depth (MLD) based on individual profiles is constructed and a new global seasonal estimation of barrier layer thickness is also provided.
Journal ArticleDOI
Trends in the sources and sinks of carbon dioxide
Corinne Le Quéré,Corinne Le Quéré,Michael R. Raupach,Josep G. Canadell,Gregg Marland,Laurent Bopp,Philippe Ciais,Thomas J. Conway,Scott C. Doney,Richard A. Feely,Pru N Foster,Pierre Friedlingstein,Kevin R. Gurney,Richard A. Houghton,Joanna Isobel House,Chris Huntingford,Peter Levy,Mark R. Lomas,Joseph D. Majkut,Nicolas Metzl,Jean Pierre Henry Balbaud Ometto,Glen P. Peters,I. Colin Prentice,James T. Randerson,Steven W. Running,Jorge L. Sarmiento,Ute Schuster,Stephen Sitch,Taro Takahashi,Nicolas Viovy,Guido R. van der Werf,F. Ian Woodward +31 more
TL;DR: In the past 50 years, the fraction of CO2 emissions that remains in the atmosphere each year has likely increased, from about 40% to 45%, and models suggest that this trend was caused by a decrease in the uptake of CO 2 by the carbon sinks in response to climate change and variability as mentioned in this paper.
Journal ArticleDOI
Circulation, mixing, and production of Antarctic Bottom Water
TL;DR: In this article, the authors make use of the available high-quality station data in the Southern Ocean to construct bottom maps of neutral density and mean property maps, including Chlorofluorocarbon (CFC), for the abyssal layer underneath a selected neutral density surface.