Results 31 to 40 of about 711 (146)
Topside Ionosphere and Plasmasphere Modelling Using GNSS Radio Occultation and POD Data
Remote Sensing, 2021 A 3D-model approach has been developed to describe the electron density of the topside ionosphere and plasmasphere based on Global Navigation Satellite System (GNSS) measurements onboard low Earth orbit satellites.
Fabricio S. Prol, M. Mainul Hoque
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Remote Sensing, 2022 The height of the peak electron density (hmF2) and the critical frequency of the F2 layer (foF2) are very important in the research of ionospheric electrodynamics and high frequency (HF) wireless communication.
Bingbing Zhang +5 more
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Український антарктичний журналThis study aims to investigate ionospheric responses to the February 27, 2023 intense geomagnetic storm over Kharkiv and the Akademik Vernadsky (hereinafter – Vernadsky) station using ionosondes.
Maryna Reznychenko +8 more
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Solar Flare Effects Observed over Mexico during 30–31 March 2022
Remote Sensing, 2023 Manifestations of two solar flares of March 2022 were studied over Mexico. The flare effects in the lower ionosphere had a ~3 min delay from the X1.3-flare onset and ~5 min from the M9.6-flare onset. The maximal impact on the HF signal amplitude was ~(14–
Maria A. Sergeeva +13 more
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Annals of Geophysics, 1998 Almost 60 years development of ionosondes and their data processing capabilities are described with emphasis on the authors contributions from the early beginnings of ionospheric studies to the latest digital equipment to be used for the exploration of the magnetosphere.
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Vertical and Oblique Ionosphere Sounding During the 21 August 2017 Solar Eclipse
Geophysical Research Letters, 2018 On 21 August 2017, a total solar eclipse crossed North America. Two Vertical Incident Pulsed Ionospheric Radar ionosondes were operated, one deployed under totality at Lusk, Wyoming, and another south of totality, 313 km away from the geomagnetic ...
Terence Bullett, Justin Mabie
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Remote Sensing, 2023 The center path of the 21 June 2020 solar eclipse, which passed through Guam (13.62°N, 144.86°E, 94.6% obscuration), United States, at the end of its journey, provides a peculiar opportunity to study the ionospheric changes as the moon shadow moves into ...
Jin Wang +5 more
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ION-FAST as the NIRFI’s Ionospheric Diagnostic Platform
AtmosphereIn December 2021, we presented a prototype of a fast ionosonde for vertical sounding based on the usage of publicly available radio-electronic components. This approach led to a major reduction in the cost of the created device. We called our development
Sergey P. Moiseev +4 more
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Analysis of the Relation Between Solar Activity and Parameters of the Sporadic E Layer
AtmosphereBased on the ionosonde data from stations at different latitudes in high- and low-solar-activity years, the effects of solar activity on the parameters of the Es layer and the foE amplitude spectrum are analyzed.
Yabin Zhang +5 more
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The new CAS-DIS digital ionosonde
Annals of Geophysics, 2013 A high quality digital ionosonde called the Chinese Academy of Sciences digital ionosonde (CAS-DIS) has been developed for investigations of the ionosphere. Two important features are used for the CAS-DIS; first, the technique of analog down-conversion has been replaced by the new approach of digital down-conversion technology.
Wang Shun +3 more
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