Long term persistence in the atmosphere: global laws and tests of climate models

Armin Bunde, Shlomo Havlin, Eva Koscielny-Bunde and Hans-Joachim Schellnhuber

Physica A: Statistical Mechanics and its Applications, 2001, vol. 302, issue 1, 255-267

Abstract: The persistence of short term weather states is a well known phenomenon: A warm day is more likely to be followed by a warm day than by a cold one and vice versa. Using advanced methods from statistical physics that are able to distinguish between trends and persistence we have shown recently that this rule may well extend to months, years and decades, and on these scales the decay of the persistence seems to follow a universal power law. Here we review these studies and discuss, how the law can be used as an (uncomfortable) test bed for the state-of-the-art climate models. It turns out that the models considered display wide performance differences and actually fail to reproduce the universal power law behavior of the persistence. It seems that the models tend to underestimate persistence while overestimating trends, and this fact may imply that the models exaggerate the expected global warming of the atmosphere.

Date: 2001
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:302:y:2001:i:1:p:255-267

DOI: 10.1016/S0378-4371(01)00469-1

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