Volatility in atmospheric temperature variability

被引：23

作者：

Govindan, RB

Bunde, A

Havlin, S

机构：

[1] Univ Giessen, Inst Theoret Phys 2, D-35392 Giessen, Germany

[2] Bar Ilan Univ, Minerva Ctr, IL-52900 Ramat Gan, Israel

[3] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2003年 / 318卷 / 3-4期

基金：

以色列科学基金会;

关键词：

correlations; volatility; climate models; DFA; scaling analysis;

D O I：

10.1016/S0378-4371(02)01552-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using detrended fluctuation analysis, we study the scaling properties of the volatility time series V-i = \Ti+1 - T-i\ of daily temperatures T-i for 10 chosen sites around the globe. We find that the volatility is long-range power-law correlated with an exponent gamma close to 0.8 for all sites considered here. We use this result to test the scaling performance of several state-of-the art global climate models and find that the models do not reproduce the observed scaling behavior. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：529 / 536

页数：8

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