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Solar flare intermittency and the earth's temperature anomalies
Nicola Scafetta1, Bruce J West
1Pratt School EE Department, Duke University, PO Box 90291, Durham, North Carolina 27708, USA.
Physical Review Letters
|July 15, 2003
Summary
Earth's temperature anomalies are linked to solar flare activity. Analysis of temperature data reveals a Lévy component, suggesting solar intermittency influences climate fluctuations over long periods.
Area of Science:
- Geophysics and Space Physics
- Climate Science
- Statistical Mechanics
Background:
- Earth's climate system exhibits short-term temperature anomalies.
- Solar flare activity is known for its intermittent nature.
- Understanding the drivers of temperature fluctuations is crucial for climate modeling.
Purpose of the Study:
- To investigate a potential link between Earth's short-term temperature anomalies and solar flare intermittency.
- To analyze the statistical properties of temperature time series fluctuations.
- To identify underlying mechanisms driving temporal persistence in climate data.
Main Methods:
- Analysis of mean monthly temperature data from 1856 to 2002.
- Study of the scaling of diffusion spreading and entropy from temperature time series fluctuations.
- Application of statistical methods to detect Lévy components in temporal persistence.
Main Results:
- Evidence of a Lévy component in the temporal persistence of temperature data sets.
- The identified Lévy component corresponds to the expected signature of solar flare intermittency.
- The findings suggest a connection between solar activity and short-term climate variations.
Conclusions:
- A significant link exists between Earth's temperature anomalies and solar flare intermittency.
- The presence of a Lévy component in temperature data supports this connection.
- Solar intermittency may play a role in driving short-term climate fluctuations.