Laurent Terray

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An ensemble of twenty four coupled ocean-atmosphere models has been compared with respect to their performance in the tropical Paci®c. The coupled models span a large portion of the parameter space and di€er in many respects. The intercomparison includes TOGA (Tropical Ocean Global Atmosphere)-type models consisting of high-resolution tropical ocean models(More)
We examine the seasonal cycle of near-surface air temperature simulated by 17 coupled ocean-atmosphere general circulation models participating in the Coupled Model Intercomparison Project (CMIP). Nine of the models use ad hoc``¯ux adjustment'' at the ocean surface to bring model simulations close to observations of the present-day climate. We group(More)
The origin of the so-called summer North Atlantic ‘‘Horseshoe’’ (HS) sea surface temperature (SST) mode of variability, which is statistically linked to the next winter’s North Atlantic Oscillation (NAO), is investigated from data and experiments with the CCM3 atmospheric general circulation model (AGCM). Lagged observational analyses reveal a linkage(More)
The role of lateral ocean physics in the upper ocean thermal balance of a coupled ocean-atmosphere GCM Abstract The sensitivity of the upper ocean thermal balance of an ocean-atmosphere coupled GCM to lateral ocean physics is assessed. Three 40-year simulations are performed using horizontal mixing, isopycnal mixing , and isopycnal mixing plus eddy induced(More)
The seasonal cycle over the tropical Pacific simulated by eleven coupled ocean-atmosphere general circulation models (GCMs) is examined. Each model consists of a high resolution ocean GCM of either the tropical Pacific or near-global oceans, coupled to a moderate or high resolution atmospheric GCM, without the use of flux correction. The seasonal behavior(More)
A systematic modular approach to investigate the respective roles of the ocean and atmosphere in setting El Niño characteristics in coupled general circulation models is presented. Several state-of-the-art coupled models sharing either the same atmosphere or the same ocean are compared. Major results include 1) the dominant role of the atmosphere model in(More)
We perform a multimodel detection and attribution study with climate model simulation output and satellite-based measurements of tropospheric and stratospheric temperature change. We use simulation output from 20 climate models participating in phase 5 of the Coupled Model Intercomparison Project. This multimodel archive provides estimates of the signal(More)