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NEW IONOSPHERIC MODELS FOR MONITORING AND FORECASTING IONOSPHERIC WEATHER

Jakowski, Norbert and Hoque, Mohammed Mainul and Wilken, Volker and Gerzen, Tatjana and Borries, Claudia and Missling, Klaus-Dieter and Barkmann, Henrike and Tegler, Mirco (2011) NEW IONOSPHERIC MODELS FOR MONITORING AND FORECASTING IONOSPHERIC WEATHER. 8th European Space Weather Week, 28.11. - 2.12.2011, Namur, Belgien.

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Abstract

The ionospheric plasma may cause range errors of up to 100m at L-band signals used in Global Navigation Satellite Systems (GNSS). Hence, correction of ionospheric propagation errors is an important task for single frequency users and related augmentation systems such as WAAS in US and EGNOS in Europe. In a first order approximation the range error is proportional to the integral of the electron density along the ray path (Total Electron Content - TEC). Therefore, knowledge of the ionospheric TEC can effectively be used to correct ionospheric errors. In this talk we review new ionospheric models we have recently developed for imaging the ionospheric behaviour. The modelled parameters such as TEC and electron density are functions of geographic/geomagnetic location, local time and solar flux as a measure of solar activity. The model coefficients are deduced from input data by least squares methods. The models are used in the operational space weather and ionosphere data service SWACI (http://swaciweb.dlr.de ) at DLR Neustrelitz for calibrating, mapping and forecasting TEC and for starting 3D reconstructions of the ionospheric plasma density. Furthermore, basic features of the models for TEC and F2 layer peak density NmF2 including preliminary validation results are reported. The multifunctional use of the models in the SWACI service is described.

Item URL in elib:https://elib.dlr.de/72703/
Document Type:Conference or Workshop Item (Poster)
Title:NEW IONOSPHERIC MODELS FOR MONITORING AND FORECASTING IONOSPHERIC WEATHER
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jakowski, NorbertNorbert.Jakowski (at) dlr.deUNSPECIFIED
Hoque, Mohammed MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Wilken, VolkerVolker.Wilken (at) dlr.deUNSPECIFIED
Gerzen, TatjanaTatjana.Gerzen (at) dlr.deUNSPECIFIED
Borries, ClaudiaClaudia.Borries (at) dlr.deUNSPECIFIED
Missling, Klaus-DieterKlaus-Dieter.Missling (at) dlr.deUNSPECIFIED
Barkmann, HenrikeHenrike.Barkmann (at) dlr.deUNSPECIFIED
Tegler, MircoMirco.Tegler (at) dlr.deUNSPECIFIED
Date:28 November 2011
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ionosphere, modelling, GPS, space weather, forecast, TEC
Event Title:8th European Space Weather Week
Event Location:Namur, Belgien
Event Type:international Conference
Event Dates:28.11. - 2.12.2011
Organizer:ESA, Solar Terrestrial Center of Excellence, Belgien
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: Jakowski, Dr.rer.nat. Norbert
Deposited On:12 Dec 2011 09:13
Last Modified:12 Dec 2011 09:13

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