The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes
The dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N). Using daily mean values of VHF radar echoes and of geomagnetic activity indice...
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2009
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fttibhannoverren:oai:oa.tib.eu:123456789/4043 2024-09-15T17:39:23+00:00 The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes Zeller, O. Bremer, J. 2009 application/pdf https://oa.tib.eu/renate/handle/123456789/4043 https://doi.org/10.34657/1678 eng eng München : European Geopyhsical Union DOI:https://doi.org/10.5194/angeo-27-831-2009 https://doi.org/10.34657/1678 https://oa.tib.eu/renate/handle/123456789/4043 CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich ddc:530 Ionosphere (Mid-latitude ionosphere Polar ionosphere) Radio science (Remote sensing) comparative study flux measurement geomagnetic field geomagnetism mesosphere polar meteorology radar status-type:publishedVersion doc-type:Article doc-type:Text 2009 fttibhannoverren https://doi.org/10.34657/167810.5194/angeo-27-831-2009 2024-06-26T23:32:42Z The dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N). Using daily mean values of VHF radar echoes and of geomagnetic activity indices in superimposed epoch analyses, the comparison of both data sets shows in general stronger radar echoes on the day of the maximum geomagnetic activity, the maximum value one day after the geomagnetic disturbance, and enhanced radar echoes also on the following 2–3 days. This phenomenon is observed at middle and polar latitudes and can be explained by precipitating particle fluxes during the ionospheric post storm effect. At polar latitudes, the radar echoes decrease however during and one day after very strong geomagnetic disturbances. The possible reason of this surprising effect is discussed. Article in Journal/Newspaper Andenes Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
ddc:530 Ionosphere (Mid-latitude ionosphere Polar ionosphere) Radio science (Remote sensing) comparative study flux measurement geomagnetic field geomagnetism mesosphere polar meteorology radar |
spellingShingle |
ddc:530 Ionosphere (Mid-latitude ionosphere Polar ionosphere) Radio science (Remote sensing) comparative study flux measurement geomagnetic field geomagnetism mesosphere polar meteorology radar Zeller, O. Bremer, J. The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
topic_facet |
ddc:530 Ionosphere (Mid-latitude ionosphere Polar ionosphere) Radio science (Remote sensing) comparative study flux measurement geomagnetic field geomagnetism mesosphere polar meteorology radar |
description |
The dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N). Using daily mean values of VHF radar echoes and of geomagnetic activity indices in superimposed epoch analyses, the comparison of both data sets shows in general stronger radar echoes on the day of the maximum geomagnetic activity, the maximum value one day after the geomagnetic disturbance, and enhanced radar echoes also on the following 2–3 days. This phenomenon is observed at middle and polar latitudes and can be explained by precipitating particle fluxes during the ionospheric post storm effect. At polar latitudes, the radar echoes decrease however during and one day after very strong geomagnetic disturbances. The possible reason of this surprising effect is discussed. |
format |
Article in Journal/Newspaper |
author |
Zeller, O. Bremer, J. |
author_facet |
Zeller, O. Bremer, J. |
author_sort |
Zeller, O. |
title |
The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
title_short |
The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
title_full |
The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
title_fullStr |
The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
title_full_unstemmed |
The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
title_sort |
influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes |
publisher |
München : European Geopyhsical Union |
publishDate |
2009 |
url |
https://oa.tib.eu/renate/handle/123456789/4043 https://doi.org/10.34657/1678 |
genre |
Andenes |
genre_facet |
Andenes |
op_relation |
DOI:https://doi.org/10.5194/angeo-27-831-2009 https://doi.org/10.34657/1678 https://oa.tib.eu/renate/handle/123456789/4043 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/167810.5194/angeo-27-831-2009 |
_version_ |
1810479506686738432 |