An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole
International audience We test the proposal that the Sun's magnetic activity, communicated via the solar wind, provides a link between solar variability and the Earth's climate in the Antarctic troposphere. The strength of a geomagnetic storm is one indicator of the state of the solar wind...
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ftinsu:oai:HAL:hal-00317058v1 2023-11-12T04:06:34+01:00 An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole Lam, M. M. Rodger, A. S. British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2003 https://hal.science/hal-00317058 https://hal.science/hal-00317058/document https://hal.science/hal-00317058/file/angeo-21-1095-2003.pdf en eng HAL CCSD European Geosciences Union hal-00317058 https://hal.science/hal-00317058 https://hal.science/hal-00317058/document https://hal.science/hal-00317058/file/angeo-21-1095-2003.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00317058 Annales Geophysicae, 2003, 21 (5), pp.1095-1100 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2003 ftinsu 2023-10-25T16:25:22Z International audience We test the proposal that the Sun's magnetic activity, communicated via the solar wind, provides a link between solar variability and the Earth's climate in the Antarctic troposphere. The strength of a geomagnetic storm is one indicator of the state of the solar wind; therefore, we use the dates of 51 moderate to strong winter geomagnetic storms from the period 1961?1990 to conduct a series of superposed epoch analyses of the winter South Pole isobaric height and temperature, at pressures of between 100?500 mbar. Using Student's t -test to compare the mean value of the pre- and post-storm data sets, we find no evidence to support the hypothesis that there is a statistically-significant correlation between the onset of a geomagnetic storm and changes in the isobaric temperature or height of the troposphere and lower stratosphere over the South Pole during winter months. This concurs with a similar study of the variability of the troposphere and lower stratosphere over the South Pole (Lam and Rodger, 2002) which uses drops in the level of observed galactic cosmic ray intensity, known as Forbush decreases, as a proxy for solar magnetic activity instead of geomagnetic storms. Article in Journal/Newspaper Antarc* Antarctic South pole South pole Institut national des sciences de l'Univers: HAL-INSU Antarctic Rodger ENVELOPE(-83.567,-83.567,-79.700,-79.700) South Pole The Antarctic |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Lam, M. M. Rodger, A. S. An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience We test the proposal that the Sun's magnetic activity, communicated via the solar wind, provides a link between solar variability and the Earth's climate in the Antarctic troposphere. The strength of a geomagnetic storm is one indicator of the state of the solar wind; therefore, we use the dates of 51 moderate to strong winter geomagnetic storms from the period 1961?1990 to conduct a series of superposed epoch analyses of the winter South Pole isobaric height and temperature, at pressures of between 100?500 mbar. Using Student's t -test to compare the mean value of the pre- and post-storm data sets, we find no evidence to support the hypothesis that there is a statistically-significant correlation between the onset of a geomagnetic storm and changes in the isobaric temperature or height of the troposphere and lower stratosphere over the South Pole during winter months. This concurs with a similar study of the variability of the troposphere and lower stratosphere over the South Pole (Lam and Rodger, 2002) which uses drops in the level of observed galactic cosmic ray intensity, known as Forbush decreases, as a proxy for solar magnetic activity instead of geomagnetic storms. |
author2 |
British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Lam, M. M. Rodger, A. S. |
author_facet |
Lam, M. M. Rodger, A. S. |
author_sort |
Lam, M. M. |
title |
An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
title_short |
An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
title_full |
An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
title_fullStr |
An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
title_full_unstemmed |
An investigation into the correlation of geomagnetic storms with tropospheric parameters over the South Pole |
title_sort |
investigation into the correlation of geomagnetic storms with tropospheric parameters over the south pole |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-00317058 https://hal.science/hal-00317058/document https://hal.science/hal-00317058/file/angeo-21-1095-2003.pdf |
long_lat |
ENVELOPE(-83.567,-83.567,-79.700,-79.700) |
geographic |
Antarctic Rodger South Pole The Antarctic |
geographic_facet |
Antarctic Rodger South Pole The Antarctic |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00317058 Annales Geophysicae, 2003, 21 (5), pp.1095-1100 |
op_relation |
hal-00317058 https://hal.science/hal-00317058 https://hal.science/hal-00317058/document https://hal.science/hal-00317058/file/angeo-21-1095-2003.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782327657209266176 |