Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15)
The signature of the ionospheric Alfvén resonator (IAR), so called spectral resonant structures (SRS) in the spectra of the electromagnetic noise in the range of 0.1–10 Hz is rather frequently observed with the search coil magnetometer at observatory Barentsburg on Svalbard ( L =15). In this report...
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ftdoajarticles:oai:doaj.org/article:09bbe377b25848fb906dbc2c36cb47bb 2023-05-15T15:39:16+02:00 Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) N. V. Semenova A. G. Yahnin 2008-08-01T00:00:00Z https://doi.org/10.5194/angeo-26-2245-2008 https://doaj.org/article/09bbe377b25848fb906dbc2c36cb47bb EN eng Copernicus Publications https://www.ann-geophys.net/26/2245/2008/angeo-26-2245-2008.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-26-2245-2008 0992-7689 1432-0576 https://doaj.org/article/09bbe377b25848fb906dbc2c36cb47bb Annales Geophysicae, Vol 26, Pp 2245-2251 (2008) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2008 ftdoajarticles https://doi.org/10.5194/angeo-26-2245-2008 2022-12-31T12:30:44Z The signature of the ionospheric Alfvén resonator (IAR), so called spectral resonant structures (SRS) in the spectra of the electromagnetic noise in the range of 0.1–10 Hz is rather frequently observed with the search coil magnetometer at observatory Barentsburg on Svalbard ( L =15). In this report we discuss some peculiarities of diurnal occurrence of SRS at this high latitude station. We show that the pronounced minimum of the SRS occurrence around noon can not be explained by the diurnal variations of the solar zenith angle (illumination of ionosphere). We conclude that the SRS occurrence minimum is the result of the enhanced variability of ionospheric parameters when the observing point enters (during the Earth's rotation) the region of the ionospheric projection of the dayside cusp and its vicinity. Article in Journal/Newspaper Barentsburg Svalbard Directory of Open Access Journals: DOAJ Articles Svalbard Barentsburg ENVELOPE(14.212,14.212,78.064,78.064) Annales Geophysicae 26 8 2245 2251 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 N. V. Semenova A. G. Yahnin Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
The signature of the ionospheric Alfvén resonator (IAR), so called spectral resonant structures (SRS) in the spectra of the electromagnetic noise in the range of 0.1–10 Hz is rather frequently observed with the search coil magnetometer at observatory Barentsburg on Svalbard ( L =15). In this report we discuss some peculiarities of diurnal occurrence of SRS at this high latitude station. We show that the pronounced minimum of the SRS occurrence around noon can not be explained by the diurnal variations of the solar zenith angle (illumination of ionosphere). We conclude that the SRS occurrence minimum is the result of the enhanced variability of ionospheric parameters when the observing point enters (during the Earth's rotation) the region of the ionospheric projection of the dayside cusp and its vicinity. |
format |
Article in Journal/Newspaper |
author |
N. V. Semenova A. G. Yahnin |
author_facet |
N. V. Semenova A. G. Yahnin |
author_sort |
N. V. Semenova |
title |
Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
title_short |
Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
title_full |
Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
title_fullStr |
Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
title_full_unstemmed |
Diurnal behaviour of the ionospheric Alfvén resonator signatures as observed at high latitude observatory Barentsburg ( L =15) |
title_sort |
diurnal behaviour of the ionospheric alfvén resonator signatures as observed at high latitude observatory barentsburg ( l =15) |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
https://doi.org/10.5194/angeo-26-2245-2008 https://doaj.org/article/09bbe377b25848fb906dbc2c36cb47bb |
long_lat |
ENVELOPE(14.212,14.212,78.064,78.064) |
geographic |
Svalbard Barentsburg |
geographic_facet |
Svalbard Barentsburg |
genre |
Barentsburg Svalbard |
genre_facet |
Barentsburg Svalbard |
op_source |
Annales Geophysicae, Vol 26, Pp 2245-2251 (2008) |
op_relation |
https://www.ann-geophys.net/26/2245/2008/angeo-26-2245-2008.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-26-2245-2008 0992-7689 1432-0576 https://doaj.org/article/09bbe377b25848fb906dbc2c36cb47bb |
op_doi |
https://doi.org/10.5194/angeo-26-2245-2008 |
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Annales Geophysicae |
container_volume |
26 |
container_issue |
8 |
container_start_page |
2245 |
op_container_end_page |
2251 |
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1766370770276057088 |