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Extremal climatic states simulated by a 2-dimensional model Part I: Sensitivity of the model and present state

The criterion, based on the thermodynamics theory, that the climatic system tends to extremizesome function has suggested several studies. In particular, special attention has been devoted to the possibility that the climate reaches an extremal rate of planetary entropy production.Due to both radiative and material effects contribute to total planetary entropy production,climatic simulations obtained at the extremal rates of total, radiative or material entropy production appear to be of interest in order to elucidate which of the three extremal assumptions behaves more similar to current data. In the present paper, these results have been obtainedby applying a 2-dimensional (2-Dim) horizontal energy balance box-model, with a few independent variables (surface temperature, cloud-cover and material heat fluxes). In addition, climatic simulations for current conditions by assuming a fixed cloud-cover have been obtained. Finally,sensitivity analyses for both variable and fixed cloud models have been carried out

© Tellus Series A-Dynamic Meteorology and Oceanography, 2000, vol. 52, núm. 4, p.422-439

International Meteorological Institute in Stockholm

Autor: Pujol i Sagaró, Toni
Llebot, Josep Enric
Data: 2000
Resum: The criterion, based on the thermodynamics theory, that the climatic system tends to extremizesome function has suggested several studies. In particular, special attention has been devoted to the possibility that the climate reaches an extremal rate of planetary entropy production.Due to both radiative and material effects contribute to total planetary entropy production,climatic simulations obtained at the extremal rates of total, radiative or material entropy production appear to be of interest in order to elucidate which of the three extremal assumptions behaves more similar to current data. In the present paper, these results have been obtainedby applying a 2-dimensional (2-Dim) horizontal energy balance box-model, with a few independent variables (surface temperature, cloud-cover and material heat fluxes). In addition, climatic simulations for current conditions by assuming a fixed cloud-cover have been obtained. Finally,sensitivity analyses for both variable and fixed cloud models have been carried out
Format: application/pdf
ISSN: 0280-6495 (versió paper)
1600-0870 (versió electrònica)
Accés al document: http://hdl.handle.net/10256/7720
Llenguatge: eng
Editor: International Meteorological Institute in Stockholm
Col·lecció: Reproducció digital del document publicat a: http://dx.doi.org/10.1034/j.1600-0870.2000.00092.x
Articles publicats (D-F)
És part de: © Tellus Series A-Dynamic Meteorology and Oceanography, 2000, vol. 52, núm. 4, p.422-439
Drets: Attribution-NonCommercial 3.0 Spain
URI Drets: http://creativecommons.org/licenses/by-nc/3.0/es/
Matèria: Radiació atmosfèrica
Atmospheric radiation
Entropia
Entropy
Termodinàmica
Thermodynamic
Títol: Extremal climatic states simulated by a 2-dimensional model Part I: Sensitivity of the model and present state
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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