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Ionospheric Threat Model Assessment

Mayer, Christoph and Belabbas, Boubeker and Dunkel, Winfried (2009) Ionospheric Threat Model Assessment. ICAO NSP Meeting, 2009-03-17 - 2009-09-20, EUROCONTROL Experimental Centre, Bretigny (France).



This paper presents the first results of a German study (ITMA) that attempts to validate the GBAS CAT I ionosphere threat space that was developed for US CONUS. In phase 1 of this study the German Aerospace Center DLR and the German Air Navigation Service Provider DFS tried to determine the normal residual ionospheric uncertainty (σvig) and to identify periods with severe ionospheric activities relevant for GBAS. Dual-frequency RINEX data of up to 80 geodetic stations in and around Germany over an 11 year solar cycle from 1998 (25 stations) to 2008 (80 stations) was processed. Based on this data evaluation the study determined 16 periods with disturbed ionosphere in the years 2000 to 2003 and one day in 2005. These periods will be analyzed in more detail in phase 2 of the study to populate the GBAS CAT I ionosphere threat space. To determine the necessary parameters slope, velocity and width of the identified ionospheric fronts it is necessary to use additional GNSS data from German geodetic networks. This additional data should improve the resolution in the areas where the ionospheric front was detected. Phase 2 of the study should be completed in autumn 2009. The database may then be used to validate the assumptions regarding ionospheric effects for GAST-D.

Item URL in elib:https://elib.dlr.de/58489/
Document Type:Conference or Workshop Item (Paper)
Title:Ionospheric Threat Model Assessment
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Dunkel, WinfriedDeutsche Flugsicherung GmbHUNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:GNSS,GBAS, CAT-I, CAT-II, Ionosphere Threat Model
Event Title:ICAO NSP Meeting
Event Location:EUROCONTROL Experimental Centre, Bretigny (France)
Event Type:international Conference
Event Start Date:17 March 2009
Event End Date:20 September 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Weltraumwetter (old)
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Mayer, Dr. Christoph
Deposited On:30 Mar 2009
Last Modified:24 Apr 2024 19:23

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