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Storm induced large scale TIDs observed in GPS derived TEC

Borries, Claudia and Jakowski, N. and Wilken, Volker (2009) Storm induced large scale TIDs observed in GPS derived TEC. Annales Geophysicae, 27 (4), pp. 1605-1612. Copernicus Publications. ISSN 0992-7689

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Official URL: http://www.ann-geophys.net/27/1605/2009/

Abstract

This work is a first statistical analysis of large scale traveling ionospheric disturbances (LSTID) in Europe using total electron content (TEC) data derived from GNSS measurements. The GNSS receiver network in Europe is dense enough to map the ionospheric perturbation TEC with high horizontal resolution. The derived perturbation TEC maps are analysed studying the effect of space weather events on the ionosphere over Europe. Equatorward propagating storm induced wave packets have been identified during several geomagnetic storms. Characteristic parameters such as velocity, wavelength and direction were estimated from the perturbation TEC maps. Showing a mean wavelength of 2000 km, a mean period of 59 min and a phase speed of 684 ms<sup>−1</sup> in average, the perturbations are allocated to LSTID. The comparison to LSTID observed over Japan shows an equal wavelength but a considerably faster phase speed. This might be attributed to the differences in the distance to the auroral region or inclination/declination of the geomagnetic field lines. The observed correlation between the LSTID amplitudes and the Auroral Electrojet (AE) indicates that most of the wave like perturbations are exited by Joule heating. Particle precipitation effects could not be separated.

Item URL in elib:https://elib.dlr.de/56125/
Document Type:Article
Title:Storm induced large scale TIDs observed in GPS derived TEC
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Borries, ClaudiaUNSPECIFIEDUNSPECIFIED
Jakowski, N.UNSPECIFIEDUNSPECIFIED
Wilken, Volkervolker.wilken (at) dlr.deUNSPECIFIED
Date:2009
Journal or Publication Title:Annales Geophysicae
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:27
Page Range:pp. 1605-1612
Publisher:Copernicus Publications
ISSN:0992-7689
Status:Published
Keywords:Ionospheric disturbances; Midlatitude ionosphere; Wave propagation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Ionosphärenerkundung (old)
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Borries, Dr. Claudia
Deposited On:06 Apr 2009
Last Modified:07 Dec 2015 19:06

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