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| Registros recuperados: 53 | |
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| Iacobellis, S.F.; Somerville, R.C.J.. |
| A process-oriented diagnostic model has been developed, which couples an atmospheric column model to an upper ocean model. In vertical structure and representation of physical processes, the atmospheric model resembles a single horizontal grid point of a general circulation model. It includes vertical transports by convection and turbulent mixing, radiative transfert with interactive clouds, and a complete hydrologic cycle. The ocean model is a simple mixed layer, synchronously coupled to the atmosphere through a surface energy budget computation. Time-dependent observational analyses of horizontal atmospheric transports of momentum, heat and moisture are used to force the coupled model. The model then produces such fields as temperature, humidity,... |
| Tipo: Text |
Palavras-chave: COUPLAGE OCEAN ATMOSPHERE; CIRCULATION ATMOSPHERIQUE; MODELISATION. |
| Ano: 1989 |
URL: http://www.documentation.ird.fr/hor/fdi:30228 |
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| Weickmann, K.M.. |
| An important issue in understanding the low frequency evolution of the atmospheric circulation and the ocean-atmosphere system is the role of transients during individual events. We examine this question from an observational point-of-view for two different time scales and speculate on the importance of transients from these two different perspectives. Our analysis period covers September 1981 - April 1982 which includes the development phase of the 1982-83 El Nino Southern Oscillation (ENSO) as well as six Madden-Julian (30-60 day) Oscillations (MJO). The latter include a strong event during december 1981 that is studied in detail. The self-similarity of these two time scales (Webster, 1989) is also highlighted. (Résumé d'auteur) |
| Tipo: Text |
Palavras-chave: CIRCULATION ATMOSPHERIQUE; INTERACTION OCEAN ATMOSPHERE; FLUX THERMIQUE; ANOMALIE; ENSO; 1981 1982. |
| Ano: 1989 |
URL: http://www.documentation.ird.fr/hor/fdi:30249 |
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| Zebiak, S.E.. |
| Analyses are performed using surface winds derived from the FSU Pacific pseudo-stress fields. Vorticity budget calculations reveal the relative contributions of various terms, and allow simplification of the full momentum equations. Based on the simplified equations, a procedure is developed for estimating surface pressure, and then adjusting the winds. Finally, the winds and pressure are used to infer boundary layer and upper level forcing, within the context of particular model formulations. The results reveal deficiencies in these models, and suggest a convective heating structure different from what is often assumed. (Résumé d'auteur) |
| Tipo: Text |
Palavras-chave: CIRCULATION ATMOSPHERIQUE; TENSION DU VENT; ANALYSE DE DONNEES. |
| Ano: 1989 |
URL: http://www.documentation.ird.fr/hor/fdi:30261 |
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| Prince, S.D.; Kerr, Y.H.; Goutorbe, J.P.; Lebel, Thierry; Tinga, A.; Bessemoulin, P.; Brouwer, J.; Dolman, A.J.; Engman, E.T.; Gash, J.H.C.; Hoepffner, Michel; Kabat, P.; Monteny, Bruno; Said, F.; Sellers, P.; Wallace, J.. |
| Tipo: Text |
Palavras-chave: PROGRAMME DE RECHERCHE; CIRCULATION ATMOSPHERIQUE; BILAN ENERGETIQUE; TELEDETECTION; PLUVIOMETRIE; VARIATION TEMPORELLE; VARIATION SPATIALE; TOPOSEQUENCE; CHANGEMENT CLIMATIQUE; ETAT DE SURFACE DU SOL. |
| Ano: 1995 |
URL: http://www.documentation.ird.fr/hor/fdi:41393 |
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| Registros recuperados: 53 | |
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