A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar
Several possible mechanisms for the production of sporadic sodium layers have been discussed in the literature, but none of them seem to explain all the accumulated observations. The hypotheses range from direct meteoric input, to energetic electron bombardment on meteoric smoke particles, to ion ne...
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ftcopernicus:oai:publications.copernicus.org:angeo36381 2023-05-15T13:25:36+02:00 A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar Nesse, H. Heinrich, D. Williams, B. Hoppe, U.-P. Stadsnes, J. Rietveld, M. Singer, W. Blum, U. Sandanger, M. I. Trondsen, E. 2018-09-27 application/pdf https://doi.org/10.5194/angeo-26-1071-2008 https://angeo.copernicus.org/articles/26/1071/2008/ eng eng doi:10.5194/angeo-26-1071-2008 https://angeo.copernicus.org/articles/26/1071/2008/ eISSN: 1432-0576 Text 2018 ftcopernicus https://doi.org/10.5194/angeo-26-1071-2008 2020-07-20T16:26:54Z Several possible mechanisms for the production of sporadic sodium layers have been discussed in the literature, but none of them seem to explain all the accumulated observations. The hypotheses range from direct meteoric input, to energetic electron bombardment on meteoric smoke particles, to ion neutralization, to temperature dependent chemistry. The varied instrumentation located on Andøya and near Tromsø in Norway gives us an opportunity to test the different theories applied to high latitude sporadic sodium layers. We use the ALOMAR Weber sodium lidar to monitor the appearance and characteristics of a sporadic sodium layer that was observed on 5 November 2005. We also monitor the temperature to test the hypotheses regarding a temperature dependent mechanism. The EISCAT Tromsø Dynasonde, the ALOMAR/UiO All-sky camera and the SKiYMET meteor radar on Andøya are used to test the suggested relationships of sporadic sodium layers and sporadic E-layers, electron precipitation, and meteor deposition during this event. We find that more than one candidate is eligible to explain our observation of the sporadic sodium layer. Text Andøya EISCAT Tromsø Copernicus Publications: E-Journals Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Andøya ENVELOPE(13.982,13.982,68.185,68.185) Norway Tromsø Annales Geophysicae 26 5 1071 1081 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Several possible mechanisms for the production of sporadic sodium layers have been discussed in the literature, but none of them seem to explain all the accumulated observations. The hypotheses range from direct meteoric input, to energetic electron bombardment on meteoric smoke particles, to ion neutralization, to temperature dependent chemistry. The varied instrumentation located on Andøya and near Tromsø in Norway gives us an opportunity to test the different theories applied to high latitude sporadic sodium layers. We use the ALOMAR Weber sodium lidar to monitor the appearance and characteristics of a sporadic sodium layer that was observed on 5 November 2005. We also monitor the temperature to test the hypotheses regarding a temperature dependent mechanism. The EISCAT Tromsø Dynasonde, the ALOMAR/UiO All-sky camera and the SKiYMET meteor radar on Andøya are used to test the suggested relationships of sporadic sodium layers and sporadic E-layers, electron precipitation, and meteor deposition during this event. We find that more than one candidate is eligible to explain our observation of the sporadic sodium layer. |
format |
Text |
author |
Nesse, H. Heinrich, D. Williams, B. Hoppe, U.-P. Stadsnes, J. Rietveld, M. Singer, W. Blum, U. Sandanger, M. I. Trondsen, E. |
spellingShingle |
Nesse, H. Heinrich, D. Williams, B. Hoppe, U.-P. Stadsnes, J. Rietveld, M. Singer, W. Blum, U. Sandanger, M. I. Trondsen, E. A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
author_facet |
Nesse, H. Heinrich, D. Williams, B. Hoppe, U.-P. Stadsnes, J. Rietveld, M. Singer, W. Blum, U. Sandanger, M. I. Trondsen, E. |
author_sort |
Nesse, H. |
title |
A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
title_short |
A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
title_full |
A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
title_fullStr |
A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
title_full_unstemmed |
A case study of a sporadic sodium layer observed by the ALOMAR Weber Na lidar |
title_sort |
case study of a sporadic sodium layer observed by the alomar weber na lidar |
publishDate |
2018 |
url |
https://doi.org/10.5194/angeo-26-1071-2008 https://angeo.copernicus.org/articles/26/1071/2008/ |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) ENVELOPE(13.982,13.982,68.185,68.185) |
geographic |
Alomar Andøya Norway Tromsø |
geographic_facet |
Alomar Andøya Norway Tromsø |
genre |
Andøya EISCAT Tromsø |
genre_facet |
Andøya EISCAT Tromsø |
op_source |
eISSN: 1432-0576 |
op_relation |
doi:10.5194/angeo-26-1071-2008 https://angeo.copernicus.org/articles/26/1071/2008/ |
op_doi |
https://doi.org/10.5194/angeo-26-1071-2008 |
container_title |
Annales Geophysicae |
container_volume |
26 |
container_issue |
5 |
container_start_page |
1071 |
op_container_end_page |
1081 |
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1766386566875316224 |