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Storm induced Travelling Ionospheric Disturbances observed over Europe

Borries, C. and Jakowski, Norbert and Mayer, Christoph and Danielides, M. (2010) Storm induced Travelling Ionospheric Disturbances observed over Europe. Kleinheubacher Tagung 2010, 4.-6. Okt. 2010, Miltenberg.

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Abstract

Travelling Ionospheric Disturbances (TIDs) are signatures of atmospheric gravity waves. By monitoring the Total Electron Content as a direct result of ground based GNSS measurements one can determine TIDs. A dense network of GNSS receivers over Europe provides allows estimating f wavelength, propagation direction and phase speed of the TIDs. Usually, TIDs are observed after geomagnetic storms and are having wavelengths of the order of about 2000km, a southward orientation and a mean phase speed of about 700 ms-1. A correlation of TID amplitudes with the auroral electrojet index, AE, indicates ionospheric Joule heating, located within the vicinity of the auroral oval, as a possible source of TIDs. The source region of the TIDs is having a similar southward extension as the polar electrojet system during enhanced geomagnetic conditions. Their propagation is discussed in relation to the southward propagation of enhanced ionization fronts and the perturbation induced dilation of the auroral oval towards lower latitudes.

Item URL in elib:https://elib.dlr.de/68015/
Document Type:Conference or Workshop Item (Speech)
Title:Storm induced Travelling Ionospheric Disturbances observed over Europe
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Borries, C.Claudia.Borries (at) dlr.deUNSPECIFIED
Jakowski, NorbertNorbert.Jakowski (at) dlr.deUNSPECIFIED
Mayer, ChristophChristoph.Mayer (at) dlr.deUNSPECIFIED
Danielides, M.Michael.Danielides (at) dlr.deUNSPECIFIED
Date:October 2010
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ionosphere, storms, Travellig Ionospheric Disturbances, Total electzron content
Event Title:Kleinheubacher Tagung 2010
Event Location:Miltenberg
Event Type:national Conference
Event Dates:4.-6. Okt. 2010
Organizer:URSI Landesausschuss
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: Jakowski, Dr.rer.nat. Norbert
Deposited On:10 Jan 2011 08:28
Last Modified:01 Dec 2018 19:47

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