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A roadmap for Antarctic and Southern Ocean science for the next two decades and beyond

M.C. Kennicutt 1 S.L. Chown 2 J.J. Cassano D. Liggett L.S. Peck 3 R. Massom S.R. Rintoul J. Storey D.G. Vaughan 3 T.J. Wilson I. Allison J. Ayton R. Badhe 4 J. Baeseman P.J. Barrett 5 R.E. Bell N. Bertler S. Bo 6 A. Brandt 7 D. Bromwich 8 S.C. Cary M.S. Clark 3 P. Convey 3 E.S. Costa 9 D. Cowan R. Deconto R. Dunbar 10 C. Elfring C. Escutia J. Francis H.A. Fricker M. Fukuchi 11 N. Gilbert 12 J. Gutt 13 C. Havermans 14 D. Hik 15 G. Hosie 16 C. Jones Y.D. Kim Y. Le Maho 17 S.H. Lee M. Leppe G. Leitchenkov Xiaojian Li 18 V. Lipenkov 19 K. Lochte 20 J. López-Martínez C. Lüdecke W. Lyons 21 S. Marenssi H. Miller P. Morozova T. Naish 22, 5 S. Nayak 23 R. Ravindra J. Retamales 24 C.A. Ricci 25 M. Rogan-Finnemore Yan Ropert‐coudert 17 A.A. Samah L. Sanson 26 T. Scambos I.R. Schloss K. Shiraishi M.J. Siegert 27 J.C. Simões 28 B. Storey M.D. Sparrow 29 D.H. Wall 30 J.C. Walsh G. Wilson J.G. Winther 31 J.C. Xavier H. Yang 32 W.J. Sutherland
Abstract : Antarctic and Southern Ocean science is vital to understanding natural variability, the processes that govern global change and the role of humans in the Earth and climate system. The potential for new knowledge to be gained from future Antarctic science is substantial. Therefore, the international Antarctic community came together to ‘scan the horizon’ to identify the highest priority scientific questions that researchers should aspire to answer in the next two decades and beyond. Wide consultation was a fundamental principle for the development of a collective, international view of the most important future directions in Antarctic science. From the many possibilities, the horizon scan identified 80 key scientific questions through structured debate, discussion, revision and voting. Questions were clustered into seven topics: i)Antarctic atmosphere and global connections, ii) Southern Ocean and sea ice in a warming world, iii) ice sheet and sea level, iv) the dynamic Earth, v) life on the precipice, vi) near-Earth space and beyond, and vii) human presence in Antarctica. Answering the questions identified by the horizon scan will require innovative experimental designs, novel applications of technology, invention of next-generation field and laboratory approaches, and expanded observing systems and networks. Unbiased, non-contaminating procedures will be required to retrieve the requisite air, biota, sediment, rock, ice and water samples. Sustained year-round access toAntarctica and the Southern Ocean will be essential to increase winter-time measurements. Improved models are needed that represent Antarctica and the Southern Ocean in the Earth System, and provide predictions at spatial and temporal resolutions useful for decision making. A co-ordinated portfolio of cross-disciplinary science, based on new models of international collaboration, will be essential as no scientist, programme or nation can realize these aspirations alone
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Submitted on : Wednesday, October 22, 2014 - 10:15:10 AM
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M.C. Kennicutt, S.L. Chown, J.J. Cassano, D. Liggett, L.S. Peck, et al.. A roadmap for Antarctic and Southern Ocean science for the next two decades and beyond. Antarctic Science, Cambridge University Press (CUP), 2015, 27 (1), pp.3-18. ⟨10.1017/S0954102014000674⟩. ⟨hal-01076420⟩

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