A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere
Several possible characteristics of magnetic clouds (MCs) have been discussed in the literature, but none appears to explain all the effects from accumulated observations. MC characteristics range from low proton temperature and plasma beta, to high magnetic field magnitude, to smooth rotation in th...
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ftdoajarticles:oai:doaj.org/article:8dc347bd992e49b3981ae8946547b6cd 2023-05-15T14:04:25+02:00 A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere Olakunle Ogunjobi Venkataraman Sivakumar Nkanyiso Mbatha 2014-01-01T00:00:00Z https://doaj.org/article/8dc347bd992e49b3981ae8946547b6cd EN eng Springer http://tao.cgu.org.tw/media/k2/attachments/v252p219.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2013.10.14.01(AA) https://doaj.org/article/8dc347bd992e49b3981ae8946547b6cd Terrestrial, Atmospheric and Oceanic Sciences, Vol 25, Iss 2, p 219 (2014) Magnetic Cloud Precipitation MLT region Absorption Energy deposition L shell Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2014 ftdoajarticles 2022-12-30T23:25:21Z Several possible characteristics of magnetic clouds (MCs) have been discussed in the literature, but none appears to explain all the effects from accumulated observations. MC characteristics range from low proton temperature and plasma beta, to high magnetic field magnitude, to smooth rotation in the direction of the magnetic field thus resulting in strong geomagnetic disturbances. Varied instrumentation which is located not only in SANAE IV, Antarctica, but also at Halley, a same radial distance (L ~ 4) in the southern hemisphere and in the vicinity of a conjugate location in northern hemisphere provide an opportunity to test theories applied to high latitude heating rates on the arrival of MC. The Halley riometer is used to monitor coincidences of absorption with the arrival of MC which was observed on 8 November 2004. Using the Monte Carlo Energy Transport Model (MCETM), the corresponding altitude of electron and proton energy distribution indicates the importance of MC triggered geomagnetic storms on mesosphere dynamics. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles SANAE ENVELOPE(-2.850,-2.850,-71.667,-71.667) SANAE IV ENVELOPE(-2.850,-2.850,-71.667,-71.667) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Magnetic Cloud Precipitation MLT region Absorption Energy deposition L shell Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Magnetic Cloud Precipitation MLT region Absorption Energy deposition L shell Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Olakunle Ogunjobi Venkataraman Sivakumar Nkanyiso Mbatha A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
topic_facet |
Magnetic Cloud Precipitation MLT region Absorption Energy deposition L shell Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
Several possible characteristics of magnetic clouds (MCs) have been discussed in the literature, but none appears to explain all the effects from accumulated observations. MC characteristics range from low proton temperature and plasma beta, to high magnetic field magnitude, to smooth rotation in the direction of the magnetic field thus resulting in strong geomagnetic disturbances. Varied instrumentation which is located not only in SANAE IV, Antarctica, but also at Halley, a same radial distance (L ~ 4) in the southern hemisphere and in the vicinity of a conjugate location in northern hemisphere provide an opportunity to test theories applied to high latitude heating rates on the arrival of MC. The Halley riometer is used to monitor coincidences of absorption with the arrival of MC which was observed on 8 November 2004. Using the Monte Carlo Energy Transport Model (MCETM), the corresponding altitude of electron and proton energy distribution indicates the importance of MC triggered geomagnetic storms on mesosphere dynamics. |
format |
Article in Journal/Newspaper |
author |
Olakunle Ogunjobi Venkataraman Sivakumar Nkanyiso Mbatha |
author_facet |
Olakunle Ogunjobi Venkataraman Sivakumar Nkanyiso Mbatha |
author_sort |
Olakunle Ogunjobi |
title |
A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
title_short |
A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
title_full |
A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
title_fullStr |
A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
title_full_unstemmed |
A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere |
title_sort |
case study of energy deposition and absorption by magnetic cloud electrons and protons over the high latitude stations: effects on the mesosphere and lower thermosphere |
publisher |
Springer |
publishDate |
2014 |
url |
https://doaj.org/article/8dc347bd992e49b3981ae8946547b6cd |
long_lat |
ENVELOPE(-2.850,-2.850,-71.667,-71.667) ENVELOPE(-2.850,-2.850,-71.667,-71.667) |
geographic |
SANAE SANAE IV |
geographic_facet |
SANAE SANAE IV |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Terrestrial, Atmospheric and Oceanic Sciences, Vol 25, Iss 2, p 219 (2014) |
op_relation |
http://tao.cgu.org.tw/media/k2/attachments/v252p219.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 10.3319/TAO.2013.10.14.01(AA) https://doaj.org/article/8dc347bd992e49b3981ae8946547b6cd |
_version_ |
1766275508870316032 |