Climate Time Series: Statistical Modeling and Dynamics
Simple models of the earths energy balance are instrumental for interpreting some qualitative aspects of the dynamics of paleo-climatic data. In the 1980s this led to the investigation of periodically forced dynamical systems of the reaction-diffusion type with small Gaussian noise, and a rough exp...
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| Format: | Conference Object |
| Language: | German |
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FernUniversität in Hagen
2012
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| Online Access: | https://dx.doi.org/10.5446/18551 https://av.tib.eu/media/18551 |
| Summary: | Simple models of the earths energy balance are instrumental for interpreting some qualitative aspects of the dynamics of paleo-climatic data. In the 1980s this led to the investigation of periodically forced dynamical systems of the reaction-diffusion type with small Gaussian noise, and a rough explanation of glacial cycles by Gaussian metastability. A spectral analysis of Greenland ice time series performed at the end of the 1990s representing average temperatures during the last ice age suggest an α -stable noise component with an α ∼ 1 : 75. Based on this observation, papers in the physics literature attempted an interpretation featuring dynamical systems perturbed by small Lévy noise. |
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