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Analysis of the 20th November 2003 extreme geomagnetic storm using CTIPe model and GNSS data

Fernandez Gomez, Isabel and Borries, Claudia and Codrescu, M. V. (2016) Analysis of the 20th November 2003 extreme geomagnetic storm using CTIPe model and GNSS data. AGU Fall Meeting 2016, 12-16 Dec 2016, San Francisco, CA (USA).

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Abstract

The ionospheric instabilities produced by solar activity generate disturbances in ionospheric density (ionospheric storms) with important terrestrial consequences such as disrupting communications and positioning. During the 20th November 2003 extreme geomagnetic storm, significant perturbations were produced in the ionosphere - thermosphere system. In this work, we replicate how this system responded to the onset of this particular storm, using the Coupled Thermosphere Ionosphere Plasmasphere electrodynamics physics-based model. CTIPe simulates the changes in the neutral winds, temperature, composition and electron densities. Although modelling the ionosphere under this conditions is a challenging task due to energy flow uncertainties, the model reproduces some of the storm features necessary to interpret the physical mechanisms behind the Total Electron Content (TEC) increase and the dramatic changes in composition during this event. Corresponding effects are observed in the TEC simulations from other physics-based models and from observations derived from Global Navigation Satellite System (GNSS) and ground-based measurements. The study illustrates the necessity of using both, measurements and models, to have a complete understanding of the processes that are most likely responsible for the observed effects.

Item URL in elib:https://elib.dlr.de/111398/
Document Type:Conference or Workshop Item (Poster)
Title:Analysis of the 20th November 2003 extreme geomagnetic storm using CTIPe model and GNSS data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fernandez Gomez, IsabelIsabel.FernandezGomez (at) dlr.deUNSPECIFIED
Borries, Claudiaclaudia.borries (at) dlr.deUNSPECIFIED
Codrescu, M. V.swpc, noaa, boulderUNSPECIFIED
Date:14 December 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Ionospheric Storms, CTIPe
Event Title:AGU Fall Meeting 2016
Event Location:San Francisco, CA (USA)
Event Type:international Conference
Event Dates:12-16 Dec 2016
Organizer:American Geophysics Union
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Ionosphäre
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Fernandez Gomez, PhD. Isabel
Deposited On:15 Mar 2017 11:09
Last Modified:31 Jul 2019 20:08

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