| Description: | This article presents a study of the influence of solar activity on the earth's temperature. In particular, the authors focus on the repercussion of the fluctuations of the solar irradiance on the temperature of the Northern and Southern hemispheres as well as on land and ocean regions. While solar irradiance data are not directly analyzed, the authors make use of a published solar irradiance reconstruction for long-time-scale fluctuations, and for short-time-scale fluctuations the authors hypothesize that solar irradiance and solar flare intermittency are coupled in such a way that the solar flare frequency fluctuations are stochastically equivalent to those of the solar irradiance. The analysis is based upon wavelet multiresolution techniques and scaling analysis methods for processing time series. The limitations of the correlation analysis applied to the short-time-scale fluctuations are discussed. The scaling analysis uses both the standard deviation and the entropy of the diffusion generated by the temperature signals. The joint use of these two scaling methods yields evidence of a Levy component in the temporal persistence of the temperature fluctuations within the temporal range from a few weeks to a few years. This apparent Levy persistence of the temperature fluctuations is found, by using an appropriate model, to be equivalent to the Levy scaling of the solar flare intermittency. The mean monthly temperature data sets cover the period from 1856 to 2002. |
|---|---|
| Creator(s): | |
| Creation Date: | February 26, 2004 |
| Partner(s): |
UNT College of Arts and Sciences
|
| Collection(s): |
UNT Scholarly Works
|
| Usage: |
Total Uses: 53
Past 30 days: 3
Yesterday: 2
|
| Creator (Author): |
Scafetta, Nicola
Duke University |
|
|---|---|---|
| Creator (Author): |
Grigolini, Paolo
University of North Texas; Universitá di Pisa and INFM; Istituto dei Processi Chimico Fisici del CNR |
|
| Creator (Author): |
Imholt, Timothy
University of North Texas |
|
| Creator (Author): |
Roberts, Jim
University of North Texas |
|
| Creator (Author): |
West, Bruce J.
Duke University; Army Research Office |
|
| Publisher Info: |
Publisher Name: American Physical Society
Place of Publication: [College Park, Maryland]
|
|
| Original Creation Date: | February 26, 2004 | |
| Description: | This article presents a study of the influence of solar activity on the earth's temperature. In particular, the authors focus on the repercussion of the fluctuations of the solar irradiance on the temperature of the Northern and Southern hemispheres as well as on land and ocean regions. While solar irradiance data are not directly analyzed, the authors make use of a published solar irradiance reconstruction for long-time-scale fluctuations, and for short-time-scale fluctuations the authors hypothesize that solar irradiance and solar flare intermittency are coupled in such a way that the solar flare frequency fluctuations are stochastically equivalent to those of the solar irradiance. The analysis is based upon wavelet multiresolution techniques and scaling analysis methods for processing time series. The limitations of the correlation analysis applied to the short-time-scale fluctuations are discussed. The scaling analysis uses both the standard deviation and the entropy of the diffusion generated by the temperature signals. The joint use of these two scaling methods yields evidence of a Levy component in the temporal persistence of the temperature fluctuations within the temporal range from a few weeks to a few years. This apparent Levy persistence of the temperature fluctuations is found, by using an appropriate model, to be equivalent to the Levy scaling of the solar flare intermittency. The mean monthly temperature data sets cover the period from 1856 to 2002. |
|
| Degree: |
Department:
Physics
Department:
Center for Nonlinear Science
|
|
| Note: |
Copyright 2004 American Physical Society. The following article appeared in Physical Review E, 69:2; http://pre.aps.org/abstract/PRE/v69/i2/e026303 |
|
| Physical Description: |
13 p. |
|
| Language(s): | ||
| Subject(s): |
|
|
| Keyword(s): | solar | earth | temperatures | |
| Source: | Physical Review E, 2004, College Park: American Physical Society | |
| Partner: |
UNT College of Arts and Sciences
|
|
| Collection: |
UNT Scholarly Works
|
|
| Identifier: |
|
|
| Resource Type: | Article | |
| Format: | Text | |
| Rights: |
Access:
Public
|
|
| Citation: |
Publication Title: Physical Review E 69
Volume: 69
Issue: 2
Pages: 13
Peer Reviewed: Yes
|
|
