Is there a hole in the topside, equatorial ionosphere?
A paper in 2000 (Huba, 2000) found a depression in electron density in the topside ionosphere near the magnetic equator, based on the SAMI-2 physical ionospheric model. The model showed, for the first time, the formation of a hole in electron density in the altitude range 1500–2500 km at geomagnetic...
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ftdoajarticles:oai:doaj.org/article:65add55fd0644519beceef110820d5f8 2023-05-15T18:11:56+02:00 Is there a hole in the topside, equatorial ionosphere? D. Gallagher 2016-01-01T00:00:00Z https://doi.org/10.1016/j.rinp.2016.11.001 https://doaj.org/article/65add55fd0644519beceef110820d5f8 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2211379716304727 https://doaj.org/toc/2211-3797 2211-3797 doi:10.1016/j.rinp.2016.11.001 https://doaj.org/article/65add55fd0644519beceef110820d5f8 Results in Physics, Vol 6, Iss , Pp 1181-1182 (2016) Physics QC1-999 article 2016 ftdoajarticles https://doi.org/10.1016/j.rinp.2016.11.001 2022-12-31T03:53:09Z A paper in 2000 (Huba, 2000) found a depression in electron density in the topside ionosphere near the magnetic equator, based on the SAMI-2 physical ionospheric model. The model showed, for the first time, the formation of a hole in electron density in the altitude range 1500–2500 km at geomagnetic equatorial latitudes. The model produced the hole because of transhemispheric O+ flows that collisionally couple to H+, transporting it to lower altitudes, and thereby reducing the electron density at high altitudes. At that time and until now, no published observations have been reported to confirm or refute this numerical result. Recent, new analysis of Dynamics Explorer 1 Retarding Ion Mass Spectrometer measurements provides the first tentative experimental support for this model result. Keywords: Ionosphere, Topside, Magnetic equator, Plasmasphere Article in Journal/Newspaper sami Directory of Open Access Journals: DOAJ Articles Results in Physics 6 1181 1182 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 |
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Physics QC1-999 D. Gallagher Is there a hole in the topside, equatorial ionosphere? |
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Physics QC1-999 |
description |
A paper in 2000 (Huba, 2000) found a depression in electron density in the topside ionosphere near the magnetic equator, based on the SAMI-2 physical ionospheric model. The model showed, for the first time, the formation of a hole in electron density in the altitude range 1500–2500 km at geomagnetic equatorial latitudes. The model produced the hole because of transhemispheric O+ flows that collisionally couple to H+, transporting it to lower altitudes, and thereby reducing the electron density at high altitudes. At that time and until now, no published observations have been reported to confirm or refute this numerical result. Recent, new analysis of Dynamics Explorer 1 Retarding Ion Mass Spectrometer measurements provides the first tentative experimental support for this model result. Keywords: Ionosphere, Topside, Magnetic equator, Plasmasphere |
format |
Article in Journal/Newspaper |
author |
D. Gallagher |
author_facet |
D. Gallagher |
author_sort |
D. Gallagher |
title |
Is there a hole in the topside, equatorial ionosphere? |
title_short |
Is there a hole in the topside, equatorial ionosphere? |
title_full |
Is there a hole in the topside, equatorial ionosphere? |
title_fullStr |
Is there a hole in the topside, equatorial ionosphere? |
title_full_unstemmed |
Is there a hole in the topside, equatorial ionosphere? |
title_sort |
is there a hole in the topside, equatorial ionosphere? |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://doi.org/10.1016/j.rinp.2016.11.001 https://doaj.org/article/65add55fd0644519beceef110820d5f8 |
genre |
sami |
genre_facet |
sami |
op_source |
Results in Physics, Vol 6, Iss , Pp 1181-1182 (2016) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2211379716304727 https://doaj.org/toc/2211-3797 2211-3797 doi:10.1016/j.rinp.2016.11.001 https://doaj.org/article/65add55fd0644519beceef110820d5f8 |
op_doi |
https://doi.org/10.1016/j.rinp.2016.11.001 |
container_title |
Results in Physics |
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6 |
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1181 |
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1182 |
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1766184533214887936 |