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AGU: Journal of Geophysical Research, Oceans

 

Keywords

  • heat content
  • models
  • annual cycle

Index Terms

  • Computational Geophysics: Model verification and validation
  • Oceanography: General: Diurnal, seasonal, and annual cycles
  • Oceanography: Physical: Air/sea interactions
  • Global Change: Global climate models
  • Oceanography: General: Numerical modeling
Abstract
Cited By (1)
 

Abstract

Annual cycle of global ocean heat content: Observed and simulated

P. J. Gleckler

Program for Climate Model Diagnosis and Intercomparison, Lawrence Livermore National Laboratory, Livermore, California, USA

K. R. Sperber

Program for Climate Model Diagnosis and Intercomparison, Lawrence Livermore National Laboratory, Livermore, California, USA

K. AchutaRao

Program for Climate Model Diagnosis and Intercomparison, Lawrence Livermore National Laboratory, Livermore, California, USA

This study focuses on the annual cycle of global ocean heat content and its variation with depth. Our primary objective is to evaluate a recent suite of coupled ocean-atmosphere simulations of the twentieth century in the context of available observations. In support of this objective, we extend the analysis and interpretation of observational estimates. In many respects, the collection of models examined compare well with observations. The largest signal in the annual cycle of ocean heat content is in the midlatitudes, where all the models do a credible job of capturing the amplitude, phasing, and depth penetration. Judging the models' performance at high latitudes is more complex because of the sparseness of observations and complications owing to the presence of sea ice. The most obvious problems identified in this study are in the tropics, where many climate models continue to have troublesome biases.

Received 11 August 2005; accepted 15 February 2006; published 8 June 2006.

Citation: Gleckler, P. J., K. R. Sperber, and K. AchutaRao (2006), Annual cycle of global ocean heat content: Observed and simulated, J. Geophys. Res., 111, C06008, doi:10.1029/2005JC003223.

Cited By

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