Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap
Source at http://dx.doi.org/10.5194/angeo-35-365-2017 A study is undertaken into parameters of the polar auroral and geomagnetic pulsations in the frequency range 1– 4 mHz (Pc5/Pi3) during quiet geomagnetic intervals preceding auroral substorms and non-substorm background variations. Special attenti...
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ftunivtroemsoe:oai:munin.uit.no:10037/12597 2023-05-15T18:29:48+02:00 Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap Yagova, Nadezda Nosikova, Natalia Baddeley, Lisa Kozyreva, Olga Lorentzen, Dag A. Pilipenko, Vyacheslav Johnsen, Magnar G. 2017-03-08 https://hdl.handle.net/10037/12597 https://doi.org/10.5194/angeo-35-365-2017 eng eng European Geosciences Union (EGU) Annales Geophysicae info:eu-repo/grantAgreement/RCN/POLARPROG/246725/Norway/Multi-Instrument Studies of High Latitude Atmospheric Turbulence and Wave Processes// info:eu-repo/grantAgreement/RCN/FORINFRA /195385/Norway/Infrastructure for space physics related research on Svalbard// https://www.ann-geophys.net/35/365/2017/angeo-35-365-2017.pdf Yagova, N., Nosikova, N., Baddeley, L.K., Kozyreva, O., Lorentzen, D.A., Pilipenko, V. & Johnsen, M.G. (2017). Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap. Annales Geophysicae, 35(3):365-376. http://dx.doi.org/10.5194/angeo-35-365-2017 FRIDAID 1463460 doi:10.5194/angeo-35-365-2017 0992-7689 1432-0576 https://hdl.handle.net/10037/12597 openAccess magnetospheric physics auroral phenomena Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.5194/angeo-35-365-2017 2021-06-25T17:55:39Z Source at http://dx.doi.org/10.5194/angeo-35-365-2017 A study is undertaken into parameters of the polar auroral and geomagnetic pulsations in the frequency range 1– 4 mHz (Pc5/Pi3) during quiet geomagnetic intervals preceding auroral substorms and non-substorm background variations. Special attention is paid to substorms that occur under parameters of the interplanetary magnetic field (IMF) conditions typical for undisturbed days (“non-triggered substorms”). The spectral parameters of pulsations observed in auroral luminosity as measured by a meridian scanning photometer (Svalbard) in the polar cap and near the polar boundary of the auroral oval are studied and compared with those for the geomagnetic pulsations measured by the magnetometer network IMAGE in the same frequency range. It is found that Pc5/Pi3 power spectral density (PSD) is higher during pre-substorm time intervals than for non-substorm days and that specific variations of pulsation parameters (”substorm precursors”) occur during the last 2–4 pre-substorm hours. Article in Journal/Newspaper Svalbard University of Tromsø: Munin Open Research Archive Svalbard Annales Geophysicae 35 3 365 376 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
magnetospheric physics auroral phenomena |
spellingShingle |
magnetospheric physics auroral phenomena Yagova, Nadezda Nosikova, Natalia Baddeley, Lisa Kozyreva, Olga Lorentzen, Dag A. Pilipenko, Vyacheslav Johnsen, Magnar G. Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
topic_facet |
magnetospheric physics auroral phenomena |
description |
Source at http://dx.doi.org/10.5194/angeo-35-365-2017 A study is undertaken into parameters of the polar auroral and geomagnetic pulsations in the frequency range 1– 4 mHz (Pc5/Pi3) during quiet geomagnetic intervals preceding auroral substorms and non-substorm background variations. Special attention is paid to substorms that occur under parameters of the interplanetary magnetic field (IMF) conditions typical for undisturbed days (“non-triggered substorms”). The spectral parameters of pulsations observed in auroral luminosity as measured by a meridian scanning photometer (Svalbard) in the polar cap and near the polar boundary of the auroral oval are studied and compared with those for the geomagnetic pulsations measured by the magnetometer network IMAGE in the same frequency range. It is found that Pc5/Pi3 power spectral density (PSD) is higher during pre-substorm time intervals than for non-substorm days and that specific variations of pulsation parameters (”substorm precursors”) occur during the last 2–4 pre-substorm hours. |
format |
Article in Journal/Newspaper |
author |
Yagova, Nadezda Nosikova, Natalia Baddeley, Lisa Kozyreva, Olga Lorentzen, Dag A. Pilipenko, Vyacheslav Johnsen, Magnar G. |
author_facet |
Yagova, Nadezda Nosikova, Natalia Baddeley, Lisa Kozyreva, Olga Lorentzen, Dag A. Pilipenko, Vyacheslav Johnsen, Magnar G. |
author_sort |
Yagova, Nadezda |
title |
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
title_short |
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
title_full |
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
title_fullStr |
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
title_full_unstemmed |
Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap |
title_sort |
non-triggered auroral substorms and long-period (1–4 mhz) geomagnetic and auroral luminosity pulsations in the polar cap |
publisher |
European Geosciences Union (EGU) |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/12597 https://doi.org/10.5194/angeo-35-365-2017 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard |
genre_facet |
Svalbard |
op_relation |
Annales Geophysicae info:eu-repo/grantAgreement/RCN/POLARPROG/246725/Norway/Multi-Instrument Studies of High Latitude Atmospheric Turbulence and Wave Processes// info:eu-repo/grantAgreement/RCN/FORINFRA /195385/Norway/Infrastructure for space physics related research on Svalbard// https://www.ann-geophys.net/35/365/2017/angeo-35-365-2017.pdf Yagova, N., Nosikova, N., Baddeley, L.K., Kozyreva, O., Lorentzen, D.A., Pilipenko, V. & Johnsen, M.G. (2017). Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap. Annales Geophysicae, 35(3):365-376. http://dx.doi.org/10.5194/angeo-35-365-2017 FRIDAID 1463460 doi:10.5194/angeo-35-365-2017 0992-7689 1432-0576 https://hdl.handle.net/10037/12597 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/angeo-35-365-2017 |
container_title |
Annales Geophysicae |
container_volume |
35 |
container_issue |
3 |
container_start_page |
365 |
op_container_end_page |
376 |
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1766213177928843264 |