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On the ionospheric impact of recent storm events on satellite-based augmentation systems in middle and low-latitude sectors.

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dc.contributor.author Komjathy, Attila
dc.contributor.author Sparks, Lawrence
dc.contributor.author Mannucci, Anthony J.
dc.contributor.author Pi, Xiaoqing
dc.date.accessioned 2006-03-16T22:33:59Z
dc.date.available 2006-03-16T22:33:59Z
dc.date.issued 2003-09-09
dc.identifier.citation Institute of Navigation GPS 2003 Internatioanl Technical Meeting, Portland, Oregon, September 9-12, 2003. en
dc.identifier.clearanceno 03-2393
dc.identifier.uri http://hdl.handle.net/2014/38884
dc.description.abstract The Ionospheric correction algorithms have been characterized extensively for the mid-latitude region of the ionosphere where benign conditions usually exist. The United States Federal Aviation Administration’s (FAA) Wide Area Augmentation System (WAAS) for civil aircraft navigation is focused primarily on the Conterminous United States (CONUS). Other Satellite-based Augmentation Systems (SBAS) include the European Geostationary Navigation Overlay Service (EGNOS) and the Japanese Global Navigation Satellite System (MSAS). Researchers are facing a more serious challenge in addressing the ionospheric impact on navigation using SBAS in other parts of the world such as the South American region on India. At equatorial latitudes, geophysical conditions lead to the so-called Appleton-Hartree (equatorial) anomaly phenomenon, which results in significantly larger ionospheric range delays and range delay spatial gradients than is observed in the CONUS or European sectors. In this paper, we use GPS measurements of geomagnetic storm days to perform a quantitative assessment of WAAS-type ionospheric correction algorithms in other parts of the world such as the low-latitude Brazil and mid-latitude Europe. For the study, we access a world-wide network of 400+ dual frequency GPS receivers. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 738649 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2003. en
dc.subject Global Postitioning Satellite (GPS) en
dc.subject total electron content en
dc.subject ionosphere en
dc.subject validation en
dc.subject modeling en
dc.title On the ionospheric impact of recent storm events on satellite-based augmentation systems in middle and low-latitude sectors. en
dc.type Preprint en


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