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Correlation between ionospheric models and space weather indices for 2011

Najman, Pavel and Kos, Tomislav and Hoque, M Mainul (2013) Correlation between ionospheric models and space weather indices for 2011. 7th annual GNSS vulnerabilities and solutions conference, 18.-20. Apr. 2013, Zagreb, Croatia.

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Abstract

Modelling of the ionosphere is used to mitigate ionospheric effects on single frequency satellite-receiver transmission as well as for background data input for data assimilation and for ionospheric forecasting. There are several empirical models of the ionosphere, all of them are based on different principles and using different inputs to compute electron density or Total Electron Content. However, their performance may strongly degrade especially under the disturbed conditions. The main cause of disruptions in the ionosphere is varying of solar activity which can be described by number of space weather indices. Studying how the ionospheric models react on the changes of solar-terrestrial indices is of great importance in order to signify which and how the indices should serve as inputs to the models. In this paper, we show results of comparative studies for year 2011 among different ionosphere models such as the the NeQuick 2, IRI 2012, Klobuchar model and the NTCM model considering Solar Spot Number (SSN), Solar Flux (SF), geomagnetic activity indices Ap and AE. We used SWACI data as reference to our comparisons. The correlation with SSN, SF is high while the correlation with Ap and AE is insignificant. Trend of linear regression of colerration between the reference with SNN and SF was the most similar to Klobuchar data.

Item URL in elib:https://elib.dlr.de/88752/
Document Type:Conference or Workshop Item (Speech)
Title:Correlation between ionospheric models and space weather indices for 2011
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Najman, Pavelpavel.najman (at) fer.hrUNSPECIFIED
Kos, TomislavUNSPECIFIEDUNSPECIFIED
Hoque, M MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Date:April 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:ionosphere model, NTCM, validation
Event Title:7th annual GNSS vulnerabilities and solutions conference
Event Location:Zagreb, Croatia
Event Type:international Conference
Event Dates:18.-20. Apr. 2013
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 > Navigation
Deposited By: Hoque, Mohammed Mainul
Deposited On:21 Jul 2014 10:18
Last Modified:21 Jan 2016 10:57

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