Zobrazeno 1 - 10
of 182
pro vyhledávání: '"J. Berdermann"'
Publikováno v:
Annales Geophysicae, Vol 39, Pp 641-655 (2021)
Simulations of the ionospheric response to solar flux changes driven by the 27 d solar rotation have been performed using the global 3-D Coupled Thermosphere Ionosphere Plasmasphere electrodynamics (CTIPe) physics-based numerical model. Using the F10
Externí odkaz:
https://doaj.org/article/dbc6759aa3384f259167d185d0bb5d0c
Publikováno v:
Annales Geophysicae, Vol 39, Pp 341-355 (2021)
The ionospheric total electron content (TEC) provided by the International GNSS Service (IGS) and the TEC simulated by the Coupled Thermosphere Ionosphere Plasmasphere Electrodynamics (CTIPe) model have been used to investigate the delayed ionospheri
Externí odkaz:
https://doaj.org/article/2bf9cd82ad794af5a130630c7a792c8e
Publikováno v:
Annales Geophysicae, Vol 38, Pp 149-162 (2020)
This study correlates different ionospheric parameters with the integrated solar extreme ultraviolet radiation (EUV) radiation to analyze the delayed ionospheric response, testing and improving upon previous studies on the ionospheric delay. Several
Externí odkaz:
https://doaj.org/article/53ae185df97446d9a9ee951e4725aade
Publikováno v:
Annales Geophysicae, Vol 37, Pp 1141-1159 (2019)
The thermosphere–ionosphere system shows high complexity due to its interaction with the continuously varying solar radiation flux. We investigate the temporal and spatial response of the ionosphere to solar activity using 18 years (1999–2017) of
Externí odkaz:
https://doaj.org/article/de5d5007c0cc4c3c899783b20599d1c9
Publikováno v:
Advances in Radio Science, Vol 16, Pp 149-155 (2018)
Physical and chemical processes in the ionosphere are driven by complex interactions with the solar radiation. The ionospheric plasma is in particular sensitive to solar EUV and UV variations with a time delay between one and two days. This delay
Externí odkaz:
https://doaj.org/article/d4f0d9d3bc924e6a9034a8d59f3fd4af
Publikováno v:
Advances in Radio Science, Vol 16, Pp 157-165 (2018)
We investigate the ionospheric response to solar Extreme Ultraviolet (EUV) variations using different proxies, based on solar EUV spectra observed from the Solar Extreme Ultraviolet Experiment (SEE) onboard the Thermosphere Ionosphere Mesosphere E
Externí odkaz:
https://doaj.org/article/bc134e13b64d4422aa129af712a6b798
Publikováno v:
Annales Geophysicae, Vol 35, Pp 97-106 (2017)
Small-scale ionospheric disturbances may cause severe radio scintillations of signals transmitted from global navigation satellite systems (GNSSs). Consequently, small-scale plasma irregularities may heavily degrade the performance of current GNSS
Externí odkaz:
https://doaj.org/article/aa6e037e45a449e09f4c1c9d80c4400a
Akademický článek
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Akademický článek
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Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 7, Iss 2, Pp 214-219 (2018)
We report about our observations during one of the major storms of the solar cycle, the so-called St. Patrick’s Day storm, which happened on 17 March 2015. The St. Patrick’s Day storm was the first storm of the current solar cycle that reached th