Novel ionospheric activity indicator specifically tailored for GNSS users

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV
dc.contributor	Universitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor	Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada II
dc.contributor	Universitat Politècnica de Catalunya. gAGE - Grup d'Astronomia i Geomàtica
dc.contributor.author	Sanz Subirana, Jaume
dc.contributor.author	Juan Zornoza, José Miguel
dc.contributor.author	González Casado, Guillermo
dc.contributor.author	Prieto Cerdeira, Roberto
dc.contributor.author	Schlüter, S.
dc.contributor.author	Orús Pérez, Raul
dc.date	2014
dc.identifier.citation	Sanz, J. [et al.]. Novel ionospheric activity indicator specifically tailored for GNSS users. A: International Technical Meeting of the Satellite Division of the Institute of Navigation. "Proceedings of the 27th International Technical Meeting of the ION Satellite Division, ION GNSS+ 2014, Tampa, Florida, September 8-12, 2014". Tampa: The Institute of Navigation, 2014, p. 1173-1182.
dc.identifier.uri	http://hdl.handle.net/2117/27928
dc.language.iso	eng
dc.publisher	The Institute of Navigation
dc.relation	http://www.ion.org/publications/abstract.cfm?jp=p&articleID=12269
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject	Astronomy and astrophysics
dc.subject	Física matemàtica
dc.subject	Classificació AMS::85 Astronomy and astrophysics
dc.title	Novel ionospheric activity indicator specifically tailored for GNSS users
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This work introduces a novel ionospheric activity indicator useful for identifying disturbed periods affecting performance for GNSS users, at regional level. This indicator is based in the “Along Arc TEC Rate (AATR) and can be easily computed from GNSS data. The AATR indicator has been assessed over more than one Solar Cycle (2002-2013) involving 140 receivers distributed world-wide. Results show that it is well correlated with the ionospheric activity and, unlike other global indicators linked to the geomagnetic activity (i.e. DST, Ap), it is sensitive to regional behaviour the ionosphere and identifies specific effects on GNSS users. Moreover from a devoted analysis of EGNOS performances in different ionospheric conditions, it follows that the AATR indicator is able to predict SBAS user availability anomalies linked to the ionosphere. The AATR indicator has been chosen as the metric to characterise the ionosphere operational conditions in the frame of EGNOS activities. This indicator has been also proposed for joint analysis in the International SBAS-Ionosphere Working Group.
dc.description.abstract	Peer Reviewed

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