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Distortions of GNSS Signals as a Result of Space Weather Impacts at high latitudes

Danielides, Michael und Rietveld, Mike und Jakowski, Norbert (2011) Distortions of GNSS Signals as a Result of Space Weather Impacts at high latitudes. Eighth European Space Weather Week , 2011-11-28 - 2011-12-02, Namur, Belgium.

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Kurzfassung

Space weather impacts related to particle precipitations are common and first are impacting Earths upper atmosphere at high latitudes. There trans‐ionospheric radio signals from the sparsely distributed global navigation satellite system are frequently disturbed. The aim of this presentation is to discuss high latitude ionospheric radio disturbance phenomena seen in GNSS signals caused both by artificial and natural ionospheric heating. Artificial ionospheric heating can be obtained by induced and controlled electron temperature increase, which leads to localized and temporal disturbances. This can be produced by the EISCAT heating facility. First investigations using a 2D 3 fluid model were showing that similar to natural heating and ionization, a variation of TEC of the order of some tenth of a TEC Unit can be expected from F‐region artificial heating. The use of artificial HF heating provides the opportunity of conducting a controlled experiment for TEC variation. The result of a controlled input causing an ionospheric response, in terms of plasma density, electron/ion temperature and vertical ion velocity, is measured. Stronger space weather impacts are seen in TEC variations due to natural heating caused by, e.g., the aurora phenomena. During active geomagnetic conditions and aurora displays TEC variations can be derived from the GNSS measurements of the order of several TEC units. The present study reports on GEISHA 2010‐2011, which is an ongoing coordinated measurement campaign including several EISCAT heating experiments simultaneously monitored by ISR, ionosondes, all‐sky camera and dual frequency signals transmitted by GNSS obtained from two high frequency receiver stations.

elib-URL des Eintrags:https://elib.dlr.de/74272/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Distortions of GNSS Signals as a Result of Space Weather Impacts at high latitudes
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Danielides, Michaelmichael.danielides (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Rietveld, Mikemike (at) eiscat.uit.noNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Jakowski, Norbertnorbert.jakowski (at) dlr.dehttps://orcid.org/0000-0003-3174-2624NICHT SPEZIFIZIERT
Datum:28 November 2011
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:GNSS, TEC, EISCAT, Ionosphaere, Stoerungen
Veranstaltungstitel:Eighth European Space Weather Week
Veranstaltungsort:Namur, Belgium
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:28 November 2011
Veranstaltungsende:2 Dezember 2011
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation und Navigation
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KN - Kommunikation und Navigation
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Ionosphäre (alt)
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Navigation
Hinterlegt von: Danielides, Michael
Hinterlegt am:23 Jan 2012 11:16
Letzte Änderung:24 Apr 2024 19:40

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