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          Institute: MPI für Meteorologie     Collection: Ocean in the Earth System     Display Documents



  history
ID: 20230.0, MPI für Meteorologie / Ocean in the Earth System
STOIC: a study of coupled model climatology and variability in tropical ocean regions
Authors:Davey, M. K.; Huddleston, M.; Sperber, K. R.; Braconnot, P.; Bryan, F.; Chen, D.; Colman, R. A.; Cooper, C.; Cubasch, U.; Delecluse, P.; DeWitt, D.; Fairhead, L.; Flato, G.; Gordon, C.; Hogan, T.; Ji, M.; Kimoto, M.; Kitoh, A.; Knutson, T. R.; Latif, Mojib; Le Treut, H.; Li, T.; Manabe, S.; Mechoso, C. R.; Meehl, G. A.; Power, S. B.; Roeckner, Erich; Terray, L.; Vintzileos, A.; Voss, R.; Wang, B.; Washington, W. M.; Yoshikawa, I.; Yu, J. Y.; Yukimoto, S.; Zebiak, S. E.
Language:English
Date of Publication (YYYY-MM-DD):2002-01
Title of Journal:Climate Dynamics
Journal Abbrev.:Clim. Dyn.
Volume:18
Issue / Number:5
Start Page:403
End Page:420
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We describe the behaviour of 23 dynamical ocean-atmosphere models, in the context of comparison with observations in a common framework. Fields of tropical sea surface temperature (SST), surface wind stress and upper ocean vertically averaged temperature (VAT) are assessed with regard to annual mean, seasonal cycle, and interannual variability characteristics. Of the participating models, 21 are coupled GCMs. of which 13 use no form of flux adjustment in the tropics. The models vary widely in design, components and purpose: nevertheless several common features are apparent. In most models without flux adjustment, the annual mean equatorial SST in the central Pacific is too cool and the Atlantic zonal SST gradient has the wrong sign. Annual mean wind stress is often too weak in the central Pacific and in the Atlantic, but too strong in the west Pacific. Few models have an upper ocean VAT seasonal cycle like that observed in the equatorial Pacific. Interannual variability is commonly too weak in the models: in particular, wind stress variability is low in the equatorial Pacific. Most models have difficulty in reproducing the observed Pacific 'horseshoe' pattern of negative SST correlations with interannual Nino3 SST anomalies, or the observed Indian-Pacific lag correlations. The results for the fields examined indicate that several substantial model improvements are needed, particularly with regard to surface wind stress.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Meteorologie/Physical Climate System
External Affiliations:Meteorol Off, London Rd, Bracknell RG12 2SZ, Berks, England; Meteorol Off, Bracknell RG12 2SZ, Berks, England; Lawrence Livermore Natl Lab, PCMDI, Livermore, CA USA; Natl Ctr Atmospher Res, Boulder, CO 80307 USA; Lamont Doherty Earth Observ, Palisades, NY USA; Bur Meteorol Res Ctr, Melbourne, Vic, Australia; Deutsches Klimarechenzentrum, Hamburg, Germany; LODYC, ISPL, Paris, France; Meteorol Dynam Lab, Paris, France; Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada; USN, Res Lab, Monterey, CA USA; Natl Ctr Environm Predict, Camp Springs, MD USA; Ctr Clim Syst Res, Tokyo, Japan; Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan; Geophys Fluid Dynam Lab, Princeton, NJ USA; Earth Frontier Res Syst, Tokyo, Japan; Univ Calif Los Angeles, Los Angeles, CA USA; CERFACS, F-31057 Toulouse, France; Univ Hawaii, Honolulu, HI 96822 USA; Japan Meteorol Agcy, Tokyo, Japan
Identifiers:ISI:000174236200004
ISSN:0930-7575
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