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Ionospheric Perturbation Characteristics and their Potential Impact on GNSS Applications

Jakowski, Norbert and Mayer, Christoph and Borries, Claudia and Wilken, Volker and Dubey, Smita (2009) Ionospheric Perturbation Characteristics and their Potential Impact on GNSS Applications. 3rd European Conference on Antennas and Propagation , 23.-27. März 2009, Berlin, Deutschland.

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Official URL: http://www1.vde.com/Conferences_en/eucap2009/Homepage.htm


Due to the dispersive nature of the ionosphere, dual frequency GNSS measurements may effectively be used to derive robust and accurate information of the ionospheric state under quiet and perturbed space weather conditions. Well established ground based and innovative space based GNSS measurements offer a unique chance for a permanent monitoring of the electron density structure of the global ionosphere-plasmasphere system under perturbed conditions. The analyzed storms propagate primarily from high towards low latitudes at the European sector. Analysis of GPS measurements reveals different perturbation types such as large scale ionization fronts, wavelike Traveling Ionospheric Disturbances (TIDs) and small scale irregularities producing radio scintillations. Since strong horizontal ionization gradients play an important role in safety of life applications, gradient characteristics is considered using the available large data set. Strongest gradients are observed in North - South direction. To quantify the ionospheric perturbation degree in GNSS applications, preliminary ideas how to define an ionospheric perturbation index are discussed. Reported are scintillation measurements carried out at high rate GPS receivers located at high and low latitudes in Kiruna / Sweden and Bandung / Indonesia. The occurrence rate of scintillations shows typical dependencies from local time, season and solar cycle. It has been found that large amplitude fluctuations my cause loss of lock.

Item URL in elib:https://elib.dlr.de/60394/
Document Type:Conference or Workshop Item (Speech)
Title:Ionospheric Perturbation Characteristics and their Potential Impact on GNSS Applications
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:March 2009
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:ionosphere, perturbations, TEC, GNSS, radio wave propagation
Event Title:3rd European Conference on Antennas and Propagation
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Dates:23.-27. März 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
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:02 Nov 2009 07:19
Last Modified:02 Nov 2009 07:19

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