Volatility in atmospheric temperature variability

R. B. Govindan, Armin Bunde, Shlomo Havlin

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Using detrended fluctuation analysis, we study the scaling properties of the volatility time series Vi = |Ti+1-Ti| of daily temperatures Ti for 10 chosen sites around the globe. We find that the volatility is long-range power-law correlated with an exponent γ 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.

Original languageEnglish
Pages (from-to)529-536
Number of pages8
JournalPhysica A: Statistical Mechanics and its Applications
Volume318
Issue number3-4
DOIs
StatePublished - 15 Feb 2003

Bibliographical note

Funding Information:
This work has been supported by the Deutsche Forschungsgemeinschaft and the Israel Science Foundation. We wish to thank Y. Ashkenazy for useful discussions.

Funding

This work has been supported by the Deutsche Forschungsgemeinschaft and the Israel Science Foundation. We wish to thank Y. Ashkenazy for useful discussions.

FundersFunder number
Deutsche Forschungsgemeinschaft
Israel Science Foundation

    Keywords

    • Climate models
    • Correlations
    • DFA
    • Scaling analysis
    • Volatility

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