Medium-scale traveling ionospheric disturbances over Taiwan observed with HF Doppler sounding [PDF]
Earth, Planets and Space, 2017 We analyzed horizontal velocities of medium-scale traveling ionospheric disturbances using HF Doppler sounding over Taiwan from January 2014 to January 2016.
Jiří Fišer +2 more
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Geophysical Research LettersDoppler frequency shifts (DFSs) recorded by continuous wave‐high frequency Doppler sounding systems and ionograms observed by five ionosondes in Taiwan and Japan are used to study three‐dimensionally seismo‐ and tsunami‐traveling ionospheric disturbances
Yao‐Chun Chen +9 more
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An Analytical Model for Doppler Frequency Variations of Ionospheric HF Sounding Caused by SSC [PDF]
Journal of Geophysical Research: Space Physics, 2010 A theoretical model to interpret the deviations of the Doppler sounding radio frequency during the SSC is proposed. The Doppler response is composed from long‐period deviation with time scale ∼10 min and short‐lived (∼1 min) positive spike. For the interpretation of this spike, the variations of Doppler velocity induced by compressional and Alfvén ...
Vyacheslav Pilipenko, E Fedorov, T R Sun
exaly +2 more sources
Earth, Planets and Space, 2023 High-Frequency Doppler (HFD) sounders at low-latitudes often detect characteristic oblique spreading Doppler traces in the spectrogram, known as Oblique Spread Structure (OSS).
Hiromi Sejima +5 more
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Observations by the CUTLASS radar, HF Doppler, oblique ionospheric sounding, and TEC from GPS during a magnetic storm [PDF]
Annales Geophysicae, 2005 Multi-diagnostic observations, covering a significant area of northwest Europe, were made during the magnetic storm interval (28–29 April 2001) that occurred during the High Rate SolarMax IGS/GPS-campaign. HF radio observations were made with vertical
D. V. Blagoveshchensky +5 more
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Earth, Planets and SpaceMt. Asama, Nagano Prefecture, Japan, erupted at 11:02 UT on September 1st, 2004. Ionospheric disturbances associated with this eruption were detected using TEC data and HF Doppler observations. It has already been reported that the TEC data obtained from
Hiroyuki Nakata +5 more
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Exploring HF-Induced Ionospheric Turbulence by Doppler Sounding and Stimulated Electromagnetic Emissions at the High Frequency Active Auroral Research Program Heating Facility [PDF]
Radio Science, 2016 AbstractWe report on the features of the F region plasma perturbations during HF heating experiments at the High Frequency Active Auroral Research Program facility in March–April 2011 and May–June 2014. The diagnostics included multifrequency Doppler (phase) sounding (MDS) and stimulated electromagnetic emission (SEE).
Carl L Siefring +2 more
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A SYNTHESIS OF TEMPORAL VARIATIONS IN DOPPLER SPECTRA RECORDED AT A QUASI-VERTICAL INCIDENCE BY THE HF DOPPLER RADAR WITH SPACED RECEIVERS [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: The ionospheric channel is widely used for the communication, radio navigation, radar, direction finding, radio astronomy, and remote radio probing systems.
V. F. Pushin, L. F. Chernogor
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Doppler shifts of HF radio waves along oblique propagation paths in the ionosphere
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023 Urgency. The ionosphere is widely used as a channel for radar, radioastronomy, radio navigation, communication links, and space-based sounding the Earth.
L. F. Chernogor, Y. H. Zhdanko
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Ionospheric effects of the 5–6 January 2019 eclipse over the People's Republic of China: results from oblique sounding [PDF]
Annales Geophysicae, 2022 This paper deals with the variations in the Doppler spectra and in the relative amplitudes of the signals observed at oblique incidence over the People's Republic of China (PRC) during the partial solar eclipse of 5–6 January 2019 and on reference days ...
L. F. Chernogor +6 more
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