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Large and mid-scale ionospheric perturbation characteristics deduced from GNSS measurements

Jakowski, Norbert and Mayer, Christoph and Borries, Claudia and Pannowitsch, Thomas (2009) Large and mid-scale ionospheric perturbation characteristics deduced from GNSS measurements. The 11th International Conference on Ionospheric, 28. April - 1. Mai 2009, Edinburgh, UK.

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Official URL: http://conferences.theiet.org/irst/


Large and mid- scale ionospheric perturbations are closely related to complex solar-terrestrial interactions in the course of space weather events. Ground and space based dual frequency measurements of Global Navigation Satellite Systems (GNSS) have been used over more than one solar cycle in order to derive characteristics of ionospheric storms. Whereas the ground based measurements show strong horizontal redistribution of plasma during ionospheric storms, the space borne measurements indicate severe vertical redistribution of the ionospheric plasma during selected space weather events. Storm enhanced spatial gradients are related to strong plasma convection as well as ion outflow in the plasmasphere. Ionization fronts and wavelike perturbation processes propagate predominantly from high to mid-latitudes with a speed ranging from 200 – 1000 m/s. Spatial gradients may reach values of 50mm/km which may seriously affect precise and safety-critical GNSS applications. Equatorward Travelling Ionospheric Disturbances (TIDs) are characterized by wavelengths in the order of 2000km, a mean period of 59 minutes and a mean phase speed of about 680m/s.

Item URL in elib:https://elib.dlr.de/60395/
Document Type:Conference or Workshop Item (Speech)
Title:Large and mid-scale ionospheric perturbation characteristics deduced from GNSS measurements
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:April 2009
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:ionosphere, TEC, Travellig Ionospheric Disturbances, GNSS
Event Title:The 11th International Conference on Ionospheric
Event Location:Edinburgh, UK
Event Type:international Conference
Event Dates:28. April - 1. Mai 2009
Organizer:The Institution of Engineering and Technology, UK
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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