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Periodic Solutions in Low-Dimensional Climatic Models
Pujol i Sagaró, Toni; Llebot, Josep Enric
Classic climatic models use constitutive laws without any response time. A more realistic approach to the natural processes governing climate dynamics must introduce response time for heat and radiation fluxes. Extended irreversible thermodynamics (EIT) is a good thermodynamical framework for introducing nonclassical constitutive laws. In the present study EIT has been used to analyze a Budyko–Sellers one-dimensional energybalance model developed by G. R. North. The results present self-sustained periodic oscillations when the response time is greater than a critical value. The high-frequency (few kiloyears) damped and nondamped oscillations obtained can be related to abrupt climatic changes without any variation in the external forcing of the system
09-04-2013
Climatologia
Climatology
Canvis climàtics
Climatic changes
Tots els drets reservats
Artículo
info:eu-repo/semantics/publishedVersion
American Meteorological Society
         

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