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X-ray and EUV radiation of solar flares and its ionospheric response on GNSS measurments

Wenzel, Daniela and Berdermann, Jens and Hoque, Mohammed Mainul and Jakowski, N. (2016) X-ray and EUV radiation of solar flares and its ionospheric response on GNSS measurments. Jahrestagung der DGG und AEF 2016, 14. - 17. März 2016, Münster.

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Official URL: http://www.smart-abstract.com/dgg2016_abstractband/abstracts/de/2248.html


The Earth’s ionosphere is primarily generated by solar EUV radiation and X-rays. Whereas higher energetic X-rays penetrate down to the D region ionosphere, EUV radiation causes an enhanced ionization in the upper E and F region. During a solar flare, we observe a sudden release of energy distributed over the whole electromagnetic spectrum, but the spectral distribution may vary strongly from flare to flare. The present poster demonstrates the variable ratio of X-ray and EUV radiation components during selected solar flares recorded by the GOES and SDO satellites and the associated different influences on the ionosphere found in GNSS (Global Navigation Satellite System) and GIFDS (Global Ionospheric Flare Detection System) measurements. The dual-frequency GNSS measurements can effectively be used to derive the total electron content (TEC) of the ionosphere. Our investigation shows that the first derivative of the vertical TEC is a good indicator for EUV flares. Furthermore, the solar zenith angle dependence of flare induced ionization enhancements in GNSS measurements is presented.

Item URL in elib:https://elib.dlr.de/104039/
Document Type:Conference or Workshop Item (Poster)
Title:X-ray and EUV radiation of solar flares and its ionospheric response on GNSS measurments
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wenzel, DanielaDaniela.Wenzel (at) dlr.deUNSPECIFIED
Berdermann, Jensjens.berdermann (at) dlr.deUNSPECIFIED
Hoque, Mohammed MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Date:15 March 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:solar flare, X-ray, EUV, GIFDS, TEC
Event Title:Jahrestagung der DGG und AEF 2016
Event Location:Münster
Event Type:national Conference
Event Dates:14. - 17. März 2016
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: Banyś (geb. Wenzel), Daniela
Deposited On:26 Apr 2016 18:15
Last Modified:31 Jul 2019 20:01

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