Title:
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Periodic Solutions in Low-Dimensional Climatic Models
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Author:
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Pujol i Sagaró, Toni; Llebot, Josep Enric
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Abstract:
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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 |
Publication date:
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2013-04-09 |
Subject(s):
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-Climatologia -Climatology -Canvis climàtics -Climatic changes |
Rights:
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Tots els drets reservats |
Document type:
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Article Article - Published version |
Published by:
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American Meteorological Society
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