A new inversion algorithm for backscatter ionogram and its experimental validation [PDF]
Annales Geophysicae, 2014 Oblique backscatter sounding is a powerful tool for detecting and monitoring the ionosphere continuously at a remote distance. High-frequency (HF) backscatter ionograms provide the amplitudes of backscatter signals with respect to group path or time ...
J. J. Zhao +8 more
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Linear and Nonlinear Plasma Processes in Ionospheric HF Heating
Plasma, 2021 Featured observations of high frequency (HF) heating experiments are first introduced; the uniqueness of each observation is presented; the likely cause and physical process of each observed phenomenon instigated by the HF heating are discussed.
Spencer Kuo
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INVERSION OF BACKSCATTER IONOGRAMS INTO QUASI-PARABOLIC IONOSPHERIC LAYER PARAMETERS
Solar-Terrestrial Physics, 2020 We present an inversion scheme of the backscatter signal leading edge into parameters of the quasi-parabolic electron density profile, which is based on the comparison of experimental and calculated minimum delays of scattered signals with corresponding ...
S.N. Ponomarchuk, M.S. Penzin
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Radar observations of field-aligned plasma irregularities in the SEEK-2 campaign [PDF]
Annales Geophysicae, 2005 During the Sporadic E Experiment over Kyushu 2 (SEEK-2) campaign, field-aligned irregularities (FAIs) associated with midlatitude sporadic-E (Es) layers were observed with two backscatter radars, the Lower Thermosphere Profiler Radar (LTPR) and the ...
S. Saito +4 more
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Space weather challenges of the polar cap ionosphere [PDF]
, 2016 This paper presents research on polar cap ionosphere space weather phenomena conducted during the European Cooperation in Science and Technology (COST) action ES0803 from 2008 to 2012.
Alfonsi, Lucilla +5 more
core +4 more sources
Spatiotemporal evolution of radio wave pump-induced ionospheric phenomena near the fourth electron gyroharmonic [PDF]
, 2007 On 12 November 2001, the European Incoherent Scatter (EISCAT) high-frequency (HF) radio wave transmitter facility, operating in O-mode at 5.423 MHz with 550 MW effective radiated power, produced artificial optical rings which appeared immediately at ...
Ashrafi, M. +3 more
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Ionospheric estimates of atomic oxygen concentration from charged particle measurements [PDF]
, 1971 Estimates of atomic concentration ionosphere from radar backscatter and rocket probe measurements of electron and ion temperatures and electron ...
Mahajan, K. K.
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Ground-based HF to VHF radar calibration by scattering off a stratospheric balloon [PDF]
Atmospheric Measurement TechniquesThe knowledge of radar system properties is crucial for judging radar performance and correctly interpreting received raw and analysed data. The most critical part of that is the radiation pattern, which is often very difficult to measure for atmospheric/
T. Renkwitz +3 more
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DIRECTION FINDING OF HF SIGNALS SCATTERED BY IONOSPHERIC IRREGULARITIES USING SMALL SIZE ANTENNA
Radio Physics and Radio Astronomy, 2016 Purpose: A modification of the Doppler Interferometry Technique is suggested to enable estimating angles of arrival of comparatively broadband HF signals scattered by random irregularities of the ionospheric plasma with the use of small-size near ...
V. G. Galushko +4 more
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Evidence of low‐latitude daytime large‐scale traveling ionospheric disturbances observed by high‐frequency multistatic backscatter sounding system during a geomagnetically quiet period [PDF]
Journal of Geophysical Research: Space Physics, 2012 Observations from the high‐frequency multistatic backscatter sounding radars on a geomagnetically quiet day (minimum Dst = −14 nT) captured the anti‐equatorward propagation of daytime large‐scale traveling ionospheric disturbance (LSTID) at the low‐latitude regions. The observed LSTID was characterized approximately by a meridional propagation speed of
Chen Zhou +5 more
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