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 language | English |
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Pages (from-to) | 529-536 |
Number of pages | 8 |
Journal | Physica A: Statistical Mechanics and its Applications |
Volume | 318 |
Issue number | 3-4 |
DOIs | |
State | Published - 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.
Funders | Funder number |
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Deutsche Forschungsgemeinschaft | |
Israel Science Foundation |
Keywords
- Climate models
- Correlations
- DFA
- Scaling analysis
- Volatility