Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution

被引：189

作者：

Marti, Olivier ^{[1
]}

Braconnot, P. ^{[1
]}

Dufresne, J. -L. ^{[2
]}

Bellier, J. ^{[1
]}

Benshila, R. ^{[5
]}

Bony, S. ^{[2
]}

Brockmann, P. ^{[1
]}

Cadule, P. ^{[6
]}

Caubel, A. ^{[1
]}

Codron, F. ^{[2
]}

de Noblet, N. ^{[1
]}

Denvil, S. ^{[6
]}

Fairhead, L. ^{[2
]}

Fichefet, T. ^{[4
]}

Foujols, M. -A. ^{[6
]}

Friedlingstein, P. ^{[1
]}

Goosse, H. ^{[4
]}

Grandpeix, J. -Y. ^{[2
]}

Guilyardi, E. ^{[5
]}

Hourdin, F. ^{[2
]}

Idelkadi, A. ^{[1
]}

Kageyama, M. ^{[1
]}

Krinner, G. ^{[7
]}

Levy, C. ^{[5
]}

Madec, G. ^{[5
]}

Mignot, J. ^{[5
]}

Musat, I. ^{[2
]}

Swingedouw, D. ^{[3
]}

Talandier, C. ^{[5
]}

机构：

[1] IPSL LSCE, UVSQ, CEA CNRS, Unite Mixte, F-91191 Gif Sur Yvette, France

[2] UPCM, Ecole Polytech ENS, CNRS, IPSL LMD,Unite Mixte, F-75252 Paris 05, France

[3] CERFACS, CNRS, F-31057 Toulouse, France

[4] Catholic Univ Louvain, Inst Astron & Geophys Georges Lemaitre, B-1348 Louvain, Belgium

[5] UPMC, IPLS LOCEAN, CNRS IRD, Unite Mixte, F-75252 Paris 05, France

[6] Inst Pierre Simon Laplace Sci Environm IPSL, F-75252 Paris 05, France

[7] UJF Grenoble, CNRS, Unite Mixte, LGGE, F-38402 St Martin Dheres, France

来源：

CLIMATE DYNAMICS | 2010年 / 34卷 / 01期

关键词：

Climate; Simulations; Ocean; Atmosphere; Coupling; Circulation; El Nino/Southern oscillation; North-Atlantic oscillation; Storm-tracks; Resolution; LAST GLACIAL MAXIMUM; GENERAL-CIRCULATION MODEL; SEA-ICE; SEASONAL CYCLE; FRESH-WATER; THERMOHALINE CIRCULATION; HYDROLOGICAL CYCLE; HEAT-TRANSPORT; CLIMATE-CHANGE; EL-NINO;

D O I：

10.1007/s00382-009-0640-6

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

This paper presents the major characteristics of the Institut Pierre Simon Laplace (IPSL) coupled ocean-atmosphere general circulation model. The model components and the coupling methodology are described, as well as the main characteristics of the climatology and interannual variability. The model results of the standard version used for IPCC climate projections, and for intercomparison projects like the Paleoclimate Modeling Intercomparison Project (PMIP 2) are compared to those with a higher resolution in the atmosphere. A focus on the North Atlantic and on the tropics is used to address the impact of the atmosphere resolution on processes and feedbacks. In the North Atlantic, the resolution change leads to an improved representation of the storm-tracks and the North Atlantic oscillation. The better representation of the wind structure increases the northward salt transports, the deep-water formation and the Atlantic meridional overturning circulation. In the tropics, the ocean-atmosphere dynamical coupling, or Bjerknes feedback, improves with the resolution. The amplitude of ENSO (El Nio-Southern oscillation) consequently increases, as the damping processes are left unchanged.

引用

页码：1 / 26

页数：26

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