Ionospheric travelling convection vortices observed by the Greenland magnetometer chain
The Greenland magnetometer array continuously provides geomagnetic variometer data since the early eighties. With the polar cusp passing over it almost every day, the array is suitable to detect ionospheric traveling convection vortices (TCVs), which were rst detected by Friis-Christensen et al. [19...
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ftdtupubl:oai:pure.atira.dk:publications/0dfd0cb5-8082-464a-a42e-1214b9d08787 2024-04-28T08:20:33+00:00 Ionospheric travelling convection vortices observed by the Greenland magnetometer chain Kotsiaros, Stavros Stolle, Claudia Friis-Christensen, Eigil Matzka, Jürgen Corona, J. Jesus Silva Böhnel, Harald 2013 application/pdf https://orbit.dtu.dk/en/publications/0dfd0cb5-8082-464a-a42e-1214b9d08787 https://backend.orbit.dtu.dk/ws/files/59173096/ABSTRACTvolume_IAGA2013.pdf https://backend.orbit.dtu.dk/ws/files/59173095/IAGA_2013.pdf http://www.iaga2013.org.mx/public/1/ABSTRACTvolume-IAGA2013.pdf eng eng IAGA https://orbit.dtu.dk/en/publications/0dfd0cb5-8082-464a-a42e-1214b9d08787 info:eu-repo/semantics/openAccess Kotsiaros , S , Stolle , C , Friis-Christensen , E & Matzka , J 2013 , Ionospheric travelling convection vortices observed by the Greenland magnetometer chain . in J J S Corona & H Böhnel (eds) , Living on a Magnetic Planet - Abstract Volume : 2013 IAGA meeting . IAGA , Mexico , pp. 31 , IAGA 2013 The 12th Scientific Assembly , Merida, Yucatan , Mexico , 26/08/2013 . < http://www.iaga2013.org.mx/public/1/ABSTRACTvolume-IAGA2013.pdf > conferenceObject 2013 ftdtupubl 2024-04-03T15:11:51Z The Greenland magnetometer array continuously provides geomagnetic variometer data since the early eighties. With the polar cusp passing over it almost every day, the array is suitable to detect ionospheric traveling convection vortices (TCVs), which were rst detected by Friis-Christensen et al. [1988]. A climatological assessment of their occurrence properties using Greenland data in 1996 has been presented by Clauer and Petrov [2002]. In our ongoing study, a detection algorithm for TCVs in Greenland magnetic data is being developed and the rst results of their climatological assessment are discussed. Specifically, three years of magnetometer data, from 1986 to 1988, collected at seven stations at the West coast of Greenland are analysed and TCV events are identied and isolated. The events are classied with respect to their intensity, duration and time of occurrence and they are correlated with values of the interplanetary magnetic eld (IMF), solar wind velocity and Kp index. The results indicate that TCVs occur usually around magnetic local noon with a typical duration of approximately 15 minutes. TCV detection is clearly facilitated during times of low geomagnetic background activity. Conference Object Greenland Greenland Magnetometer Array Technical University of Denmark: DTU Orbit |
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Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
The Greenland magnetometer array continuously provides geomagnetic variometer data since the early eighties. With the polar cusp passing over it almost every day, the array is suitable to detect ionospheric traveling convection vortices (TCVs), which were rst detected by Friis-Christensen et al. [1988]. A climatological assessment of their occurrence properties using Greenland data in 1996 has been presented by Clauer and Petrov [2002]. In our ongoing study, a detection algorithm for TCVs in Greenland magnetic data is being developed and the rst results of their climatological assessment are discussed. Specifically, three years of magnetometer data, from 1986 to 1988, collected at seven stations at the West coast of Greenland are analysed and TCV events are identied and isolated. The events are classied with respect to their intensity, duration and time of occurrence and they are correlated with values of the interplanetary magnetic eld (IMF), solar wind velocity and Kp index. The results indicate that TCVs occur usually around magnetic local noon with a typical duration of approximately 15 minutes. TCV detection is clearly facilitated during times of low geomagnetic background activity. |
author2 |
Corona, J. Jesus Silva Böhnel, Harald |
format |
Conference Object |
author |
Kotsiaros, Stavros Stolle, Claudia Friis-Christensen, Eigil Matzka, Jürgen |
spellingShingle |
Kotsiaros, Stavros Stolle, Claudia Friis-Christensen, Eigil Matzka, Jürgen Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
author_facet |
Kotsiaros, Stavros Stolle, Claudia Friis-Christensen, Eigil Matzka, Jürgen |
author_sort |
Kotsiaros, Stavros |
title |
Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
title_short |
Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
title_full |
Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
title_fullStr |
Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
title_full_unstemmed |
Ionospheric travelling convection vortices observed by the Greenland magnetometer chain |
title_sort |
ionospheric travelling convection vortices observed by the greenland magnetometer chain |
publisher |
IAGA |
publishDate |
2013 |
url |
https://orbit.dtu.dk/en/publications/0dfd0cb5-8082-464a-a42e-1214b9d08787 https://backend.orbit.dtu.dk/ws/files/59173096/ABSTRACTvolume_IAGA2013.pdf https://backend.orbit.dtu.dk/ws/files/59173095/IAGA_2013.pdf http://www.iaga2013.org.mx/public/1/ABSTRACTvolume-IAGA2013.pdf |
genre |
Greenland Greenland Magnetometer Array |
genre_facet |
Greenland Greenland Magnetometer Array |
op_source |
Kotsiaros , S , Stolle , C , Friis-Christensen , E & Matzka , J 2013 , Ionospheric travelling convection vortices observed by the Greenland magnetometer chain . in J J S Corona & H Böhnel (eds) , Living on a Magnetic Planet - Abstract Volume : 2013 IAGA meeting . IAGA , Mexico , pp. 31 , IAGA 2013 The 12th Scientific Assembly , Merida, Yucatan , Mexico , 26/08/2013 . < http://www.iaga2013.org.mx/public/1/ABSTRACTvolume-IAGA2013.pdf > |
op_relation |
https://orbit.dtu.dk/en/publications/0dfd0cb5-8082-464a-a42e-1214b9d08787 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1797583401285320704 |