The Cosmic Ray Ground-level Enhancement of 24 October 1989
Abstract The cosmic ray ground-level enhancement (GLE) of 24 October 1989 was the last of a series of GLEs associated with the same solar active region. Intensity enhancements were observed by at least 31 neutron monitors in the worldwide network, with the largest increase (~200%) observed at South...
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Cambridge University Press (CUP)
1994
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crcambridgeupr:10.1017/s1323358000019627 2024-06-23T07:46:18+00:00 The Cosmic Ray Ground-level Enhancement of 24 October 1989 Cramp, J. L. Humble, J. E. Duldig, M. L. 1994 http://dx.doi.org/10.1017/s1323358000019627 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1323358000019627 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Publications of the Astronomical Society of Australia volume 11, issue 1, page 28-32 ISSN 1323-3580 1448-6083 journal-article 1994 crcambridgeupr https://doi.org/10.1017/s1323358000019627 2024-05-29T08:09:43Z Abstract The cosmic ray ground-level enhancement (GLE) of 24 October 1989 was the last of a series of GLEs associated with the same solar active region. Intensity enhancements were observed by at least 31 neutron monitors in the worldwide network, with the largest increase (~200%) observed at South Pole, Antarctica around 20:30 UT. Using a least-squares model fit to all available neutron monitor data, spectra, apparent source directions and particle pitch angle distributions have been derived. The effect of disturbed geomagnetic conditions has also been taken into account. Article in Journal/Newspaper Antarc* Antarctica South pole South pole Cambridge University Press South Pole Publications of the Astronomical Society of Australia 11 1 28 32 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Abstract The cosmic ray ground-level enhancement (GLE) of 24 October 1989 was the last of a series of GLEs associated with the same solar active region. Intensity enhancements were observed by at least 31 neutron monitors in the worldwide network, with the largest increase (~200%) observed at South Pole, Antarctica around 20:30 UT. Using a least-squares model fit to all available neutron monitor data, spectra, apparent source directions and particle pitch angle distributions have been derived. The effect of disturbed geomagnetic conditions has also been taken into account. |
format |
Article in Journal/Newspaper |
author |
Cramp, J. L. Humble, J. E. Duldig, M. L. |
spellingShingle |
Cramp, J. L. Humble, J. E. Duldig, M. L. The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
author_facet |
Cramp, J. L. Humble, J. E. Duldig, M. L. |
author_sort |
Cramp, J. L. |
title |
The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
title_short |
The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
title_full |
The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
title_fullStr |
The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
title_full_unstemmed |
The Cosmic Ray Ground-level Enhancement of 24 October 1989 |
title_sort |
cosmic ray ground-level enhancement of 24 october 1989 |
publisher |
Cambridge University Press (CUP) |
publishDate |
1994 |
url |
http://dx.doi.org/10.1017/s1323358000019627 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1323358000019627 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
Antarc* Antarctica South pole South pole |
genre_facet |
Antarc* Antarctica South pole South pole |
op_source |
Publications of the Astronomical Society of Australia volume 11, issue 1, page 28-32 ISSN 1323-3580 1448-6083 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s1323358000019627 |
container_title |
Publications of the Astronomical Society of Australia |
container_volume |
11 |
container_issue |
1 |
container_start_page |
28 |
op_container_end_page |
32 |
_version_ |
1802645084504588288 |