An assessment of global and regional sea level for years 1993-2007 in a suite of interannual core-II simulations

Stephen M. Griffies*, Jianjun Yin, Paul J. Durack, Paul Goddard, Susan C. Bates, Erik Behrens, Mats Bentsen, Daohua Bi, Arne Biastoch, Claus W. Böning, Alexandra Bozec, Eric Chassignet, Gokhan Danabasoglu, Sergey Danilov, Catia M. Domingues, Helge Drange, Riccardo Farneti, Elodie Fernandez, Richard J. Greatbatch, David M. HollandMehmet Ilicak, William G. Large, Katja Lorbacher, Jianhua Lu, Simon J. Marsland, Akhilesh Mishra, A. J. George Nurser, David Salas y Mélia, Jaime B. Palter, Bonita L. Samuels, Jens Schröter, Franziska U. Schwarzkopf, Dmitry Sidorenko, Anne Marie Treguier, Yu heng Tseng, Hiroyuki Tsujino, Petteri Uotila, Sophie Valcke, Aurore Voldoire, Qiang Wang, Michael Winton, Xuebin Zhang

*Bu çalışma için yazışmadan sorumlu yazar

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105 Atıf (Scopus)

Özet

We provide an assessment of sea level simulated in a suite of global ocean-sea ice models using the interannual CORE atmospheric state to determine surface ocean boundary buoyancy and momentum fluxes. These CORE-II simulations are compared amongst themselves as well as to observation-based estimates. We focus on the final 15. years of the simulations (1993-2007), as this is a period where the CORE-II atmospheric state is well sampled, and it allows us to compare sea level related fields to both satellite and in situ analyses. The ensemble mean of the CORE-II simulations broadly agree with various global and regional observation-based analyses during this period, though with the global mean thermosteric sea level rise biased low relative to observation-based analyses. The simulations reveal a positive trend in dynamic sea level in the west Pacific and negative trend in the east, with this trend arising from wind shifts and regional changes in upper 700. m ocean heat content. The models also exhibit a thermosteric sea level rise in the subpolar North Atlantic associated with a transition around 1995/1996 of the North Atlantic Oscillation to its negative phase, and the advection of warm subtropical waters into the subpolar gyre. Sea level trends are predominantly associated with steric trends, with thermosteric effects generally far larger than halosteric effects, except in the Arctic and North Atlantic. There is a general anti-correlation between thermosteric and halosteric effects for much of the World Ocean, associated with density compensated changes.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)35-89
Sayfa sayısı55
DergiOcean Modelling
Hacim78
DOI'lar
Yayın durumuYayınlandı - Haz 2014
Harici olarak yayınlandıEvet

Finansman

NCAR is sponsored by the US National Science Foundation . The ACCESS model is supported by the Australian Government Department of the Environment , the Bureau of Meteorology and CSIRO through the Australian Climate Change Science Programme. E. Fernandez was supported by the BNP-Paribas foundation via the PRECLIDE project under the CNRS research convention agreement 30023488. P.J. Durack was supported by the Regional and Global Climate Modeling Program of the U.S. Department of Energy Office of Science , and his research was performed at LLNL under Contract DE-AC52-07NA27344 . A.M. Treguier acknowledges support of the European Commission’s 7th Framework Programme, under Grant Agreement number 282672, EMBRACE project. J. Yin and P. Goddard are supported by NOAA CPO under Grant NA13OAR4310128 . D.M. Holland was supported by NYU Abu Dhabi grant G1204 .

FinansörlerFinansör numarası
BNP-Paribas foundation
Bureau of Meteorology
European Commission’s 7th Framework Programme
NOAA CPONA13OAR4310128
U.S. Department of Energy Office of ScienceDE-AC52-07NA27344
US National Science Foundation
Seventh Framework Programme282672
Abu Dhabi Education CouncilG1204
Commonwealth Scientific and Industrial Research Organisation
Department of the Environment, Australian Government
Centre National de la Recherche Scientifique30023488

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