Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia
Abstract There is growing interest in the role that the Sun's magnetic field has on weather and climatic parameters, particularly the ~11 year sunspot (Schwab) cycle, the ~22 yr magnetic field (Hale) cycle and the ~88 yr (Gleissberg) cycle. These cycles and the derivative harmonics are part of...
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crwiley:10.1111/j.1745-5871.2008.00537.x 2024-06-09T07:49:37+00:00 Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia BAKER, ROBERT G.V. 2008 http://dx.doi.org/10.1111/j.1745-5871.2008.00537.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1745-5871.2008.00537.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1745-5871.2008.00537.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geographical Research volume 46, issue 4, page 380-398 ISSN 1745-5863 1745-5871 journal-article 2008 crwiley https://doi.org/10.1111/j.1745-5871.2008.00537.x 2024-05-16T14:25:44Z Abstract There is growing interest in the role that the Sun's magnetic field has on weather and climatic parameters, particularly the ~11 year sunspot (Schwab) cycle, the ~22 yr magnetic field (Hale) cycle and the ~88 yr (Gleissberg) cycle. These cycles and the derivative harmonics are part of the peculiar periodic behaviour of the solar magnetic field. Using data from 1876 to the present, the exploratory analysis suggests that when the Sun's South Pole is positive in the Hale Cycle, the likelihood of strongly positive and negative Southern Oscillation Index (SOI) values increase after certain phases in the cyclic ~22 yr solar magnetic field. The SOI is also shown to track the pairing of sunspot cycles in ~88 yr periods. This coupling of odd cycles, 23–15, 21–13 and 19–11, produces an apparently close charting in positive and negative SOI fluctuations for each grouping. This Gleissberg effect is also apparent for the southern hemisphere rainfall anomaly. Over the last decade, the SOI and rainfall fluctuations have been tracking similar values to that recorded in Cycle 15 (1914–1924). This discovery has important implications for future drought predictions in Australia and in countries in the northern and southern hemispheres which have been shown to be influenced by the sunspot cycle. Further, it provides a benchmark for long‐term SOI behaviour. Article in Journal/Newspaper South pole Wiley Online Library Hale ENVELOPE(-86.317,-86.317,-78.067,-78.067) Soi ENVELOPE(30.704,30.704,66.481,66.481) South Pole Geographical Research 46 4 380 398 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract There is growing interest in the role that the Sun's magnetic field has on weather and climatic parameters, particularly the ~11 year sunspot (Schwab) cycle, the ~22 yr magnetic field (Hale) cycle and the ~88 yr (Gleissberg) cycle. These cycles and the derivative harmonics are part of the peculiar periodic behaviour of the solar magnetic field. Using data from 1876 to the present, the exploratory analysis suggests that when the Sun's South Pole is positive in the Hale Cycle, the likelihood of strongly positive and negative Southern Oscillation Index (SOI) values increase after certain phases in the cyclic ~22 yr solar magnetic field. The SOI is also shown to track the pairing of sunspot cycles in ~88 yr periods. This coupling of odd cycles, 23–15, 21–13 and 19–11, produces an apparently close charting in positive and negative SOI fluctuations for each grouping. This Gleissberg effect is also apparent for the southern hemisphere rainfall anomaly. Over the last decade, the SOI and rainfall fluctuations have been tracking similar values to that recorded in Cycle 15 (1914–1924). This discovery has important implications for future drought predictions in Australia and in countries in the northern and southern hemispheres which have been shown to be influenced by the sunspot cycle. Further, it provides a benchmark for long‐term SOI behaviour. |
format |
Article in Journal/Newspaper |
author |
BAKER, ROBERT G.V. |
spellingShingle |
BAKER, ROBERT G.V. Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
author_facet |
BAKER, ROBERT G.V. |
author_sort |
BAKER, ROBERT G.V. |
title |
Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
title_short |
Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
title_full |
Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
title_fullStr |
Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
title_full_unstemmed |
Exploratory Analysis of Similarities in Solar Cycle Magnetic Phases with Southern Oscillation Index Fluctuations in Eastern Australia |
title_sort |
exploratory analysis of similarities in solar cycle magnetic phases with southern oscillation index fluctuations in eastern australia |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1745-5871.2008.00537.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1745-5871.2008.00537.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1745-5871.2008.00537.x |
long_lat |
ENVELOPE(-86.317,-86.317,-78.067,-78.067) ENVELOPE(30.704,30.704,66.481,66.481) |
geographic |
Hale Soi South Pole |
geographic_facet |
Hale Soi South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Geographical Research volume 46, issue 4, page 380-398 ISSN 1745-5863 1745-5871 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1745-5871.2008.00537.x |
container_title |
Geographical Research |
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46 |
container_issue |
4 |
container_start_page |
380 |
op_container_end_page |
398 |
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1801382342498975744 |