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On the dynamics of Travelling Ionospheric Disturbances over Europe

Borries, Claudia and Kauristie, Kirsti and Amm, Olaf and Jakowski, N. (2015) On the dynamics of Travelling Ionospheric Disturbances over Europe. 26th IUGG General Assembly 2015, Prague.

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Abstract

Travelling Ionospheric Disturbances (TIDs) are ionospheric signatures of thermospheric surges, commonly generated in the course of geomagnetic storms. Thus they are indicators of rapid changes in the thermosphere (density, composition, wind circulation). The resulting variations of the plasma density can be observed by using estimates of the Total Electron Content (TEC) derived from ground based Global Navigation Satellite System (GNSS) measurements. Consequently, a dense network of GNSS receivers over Europe allows an excellent monitoring and characterization of large scale TIDs. The correlation of TID amplitudes with the auroral electrojet index AE during storm conditions indicates Joule heating as a possible source mechanism of TIDs. Interestingly, TID observations over Europe show a southward shift of the source region of the TIDs. The displacement of the TID source region during the extreme magnetic storm of 20th November 2003 is accompanied by strong dynamics in the thermosphere-ionosphere-magnetosphere system. This is indicated by a co-location of enhanced temporal and spatial changes of TEC, the estimated trough location and the region of the auroral electrojet.

Item URL in elib:https://elib.dlr.de/100007/
Document Type:Conference or Workshop Item (Poster)
Title:On the dynamics of Travelling Ionospheric Disturbances over Europe
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Borries, ClaudiaUNSPECIFIEDUNSPECIFIED
Kauristie, KirstiUNSPECIFIEDUNSPECIFIED
Amm, OlafUNSPECIFIEDUNSPECIFIED
Jakowski, N.UNSPECIFIEDUNSPECIFIED
Date:26 June 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ionosphere, TEC, storm, Travelling Ionospheric Disturbance
Event Title:26th IUGG General Assembly 2015
Event Location:Prague
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Ionosphäre
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Borries, Dr. Claudia
Deposited On:07 Dec 2015 19:08
Last Modified:07 Dec 2015 19:08

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