Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects
New analysis procedures are used to show that the main phase mid-latitude storm effects conform to consistent patterns in local time when suitable selection rules are applied, with averaging over several years. Changes in ƒ ƒoF2 , with respect to estimated quiet-time values, are analysed in terms of...
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ftnerc:oai:nora.nerc.ac.uk:523024 2023-05-15T13:41:43+02:00 Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects Wrenn, G.L. Rodger, Alan S. Rishbeth, H. 1987 http://nora.nerc.ac.uk/id/eprint/523024/ https://doi.org/10.1016/0021-9169(87)90004-3 unknown Elsevier Wrenn, G.L.; Rodger, Alan S.; Rishbeth, H. 1987 Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects. Journal of Atmospheric and Terrestrial Physics, 49 (9). 901-913. https://doi.org/10.1016/0021-9169(87)90004-3 <https://doi.org/10.1016/0021-9169(87)90004-3> Publication - Article PeerReviewed 1987 ftnerc https://doi.org/10.1016/0021-9169(87)90004-3 2023-02-04T19:48:11Z New analysis procedures are used to show that the main phase mid-latitude storm effects conform to consistent patterns in local time when suitable selection rules are applied, with averaging over several years. Changes in ƒ ƒoF2 , with respect to estimated quiet-time values, are analysed in terms of ap(τ), a new geomagnetic index derived to take account of integrated disturbance. Reduction of ƒ ƒoF2 is greatest during the early morning hours, in summer, at higher geomagnetic latitudes, near solar minimum and through the more active periods. The various dependencies are quantitatively determined for the first time by creating an average ‘steady state’ disturbance, rather than following specific storm events. This approach will permit tests of competing theories using available modelling programs. Article in Journal/Newspaper Antarc* Antarctic Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Journal of Atmospheric and Terrestrial Physics 49 9 901 913 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
New analysis procedures are used to show that the main phase mid-latitude storm effects conform to consistent patterns in local time when suitable selection rules are applied, with averaging over several years. Changes in ƒ ƒoF2 , with respect to estimated quiet-time values, are analysed in terms of ap(τ), a new geomagnetic index derived to take account of integrated disturbance. Reduction of ƒ ƒoF2 is greatest during the early morning hours, in summer, at higher geomagnetic latitudes, near solar minimum and through the more active periods. The various dependencies are quantitatively determined for the first time by creating an average ‘steady state’ disturbance, rather than following specific storm events. This approach will permit tests of competing theories using available modelling programs. |
format |
Article in Journal/Newspaper |
author |
Wrenn, G.L. Rodger, Alan S. Rishbeth, H. |
spellingShingle |
Wrenn, G.L. Rodger, Alan S. Rishbeth, H. Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
author_facet |
Wrenn, G.L. Rodger, Alan S. Rishbeth, H. |
author_sort |
Wrenn, G.L. |
title |
Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
title_short |
Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
title_full |
Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
title_fullStr |
Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
title_full_unstemmed |
Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
title_sort |
geomagnetic storms in the antarctic f-region. i. diurnal and seasonal patterns for main phase effects |
publisher |
Elsevier |
publishDate |
1987 |
url |
http://nora.nerc.ac.uk/id/eprint/523024/ https://doi.org/10.1016/0021-9169(87)90004-3 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Wrenn, G.L.; Rodger, Alan S.; Rishbeth, H. 1987 Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects. Journal of Atmospheric and Terrestrial Physics, 49 (9). 901-913. https://doi.org/10.1016/0021-9169(87)90004-3 <https://doi.org/10.1016/0021-9169(87)90004-3> |
op_doi |
https://doi.org/10.1016/0021-9169(87)90004-3 |
container_title |
Journal of Atmospheric and Terrestrial Physics |
container_volume |
49 |
container_issue |
9 |
container_start_page |
901 |
op_container_end_page |
913 |
_version_ |
1766154650977828864 |