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Atmospheric waves causing ionospheric disturbances as one of sources of ionospheric perturbations of GNSS

SYSNO ASEP	0333207
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Atmospheric waves causing ionospheric disturbances as one of sources of ionospheric perturbations of GNSS
Title	Atmosférické vlny vyvolávající ionosférické poruchy jako jeden ze zdrojů ionosférických poruch GNSS
Author(s)	Laštovička, Jan (UFA-U)_{RID, ORCID}
Source Title	Second GNSS Vulnerabilities and Solutions. Conference proceedings.. - London : The Royal Institute of Navigation, 2009
Pages	-
Number of pages	11 s.
Publication form	CD-rom - CD-rom
Action	GNSS Vulnerabilities and Solutions /2./
Event date	02.09.2009-05.09.2009
VEvent location	Baska
Country	HR - Croatia
Event type	EUR
Language	eng - English
Country	GB - United Kingdom
Keywords	GNSS ; Ionospheric perturbations ; Atmospheric waves
Subject RIV	DG - Athmosphere Sciences, Meteorology
R&D Projects	GA205/07/1367 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z30420517 - UFA-U, BC-A (2005-2011)
Annotation	GNSS (GPS) positioning and other applications became common part of our life. However, they are affected by various natural variations, ionospheric variations being substantial part of them. A dual frequency system can eliminate the first-order range error of ionospheric origin, but higher order terms cannot be mitigated in such a way. The origin of errors is variability of the total electron content (TEC). The largest changes of TEC, the largest horizontal gradients of TEC (another source of problems) and the largest rate-of-change of TEC are caused by strong geomagnetic storms. Another important source of perturbations is ionospheric scintillations. They can significantly affect tracking errors, which degrade the GNSS receiver performance. Atmospheric waves of various origins belong to important sources of ionospheric perturbations. Waves and their ionospheric effects will be briefly treated in this paper.
Workplace	Institute of Atmospheric Physics
Contact	Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019
Year of Publishing	2010

Number of the records: 1