Results 11 to 20 of about 47,066 (211)
Dynamo equation solution using Finite Volume Method for midlatitude ionosphere [PDF]
Geodesy and Geodynamics, 2018 Ionosphere is the layer of atmosphere which plays an important role both in space based navigation, positioning and communication systems and HF signals. The structure of the electron density is a function of spatio-temporal variables. The electrodynamic
Feza Arikan, Umut Sezen, Orhan Arikan
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Geophysical Research Letters, 2022 We report a world record of lidar profiling of metallic Ca+ ions up to 300 km in the midlatitude nighttime ionosphere during geomagnetic quiet time.
Jing Jiao +12 more
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An examination of inter-hemispheric conjugacy in a subauroral polarization stream [PDF]
, 2012 During geomagnetically disturbed conditions the midlatitude ionosphere is subject to intense poleward directed electric fields in the dusk-midnight sector.
Kunduri, B. S. R. +7 more
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Observations of Unusual Daytime Range Spread F at Middle Latitude During the Afternoon Hours
Space Weather, 2021 In this study, an unusual daytime range spread F event recorded by the ionosonde installed at Zhangye (ZHY, 39.4°N, 100.13°E, dip latitude 29.65°N) station during the afternoon of December 23, 2016 was presented.
Lehui Wei +10 more
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Response of the Midlatitude F2 Layer to Some Strong Geomagnetic Storms during Solar Minimum as Observed at Four Sites of the Globe [PDF]
Journal of Astronomy and Space Sciences, 2015 In this study, we documented the midlatitude F2-layer response to five strong geomagnetic storms with minimum Dst < –150 nT that occurred in solar minimum years using hourly values of the F2-layer critical frequency (foF2) from four ionosondes located ...
Vitaly P. Kim, Valery V. Hegai
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Overview of midlatitude ionospheric storms [PDF]
Eos, Transactions American Geophysical Union, 2007 Solar flares and coronal mass ejections erupting from the roiling Sun can smash into the Earth's magnetosphere causing geomagnetic storms that penetrate deep into the atmosphere, which can short out satellites, upset radio communications, disrupt navigation, and even damage terrestrial electrical power grids.
Paul Kintner +3 more
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Type-1 echoes from the mid-latitude E-Region ionosphere [PDF]
Annales Geophysicae, 1997 This paper presents more data on the properties of type-1 irregularities in the nighttime mid-latitude E-region ionosphere. The measurements were made with a 50-MHz Doppler radar system operating in Crete, Greece.
C. Haldoupis, D. T. Farley, K. Schlegel
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Morphology of NmF2 nighttime increases in the Eurasian sector [PDF]
Annales Geophysicae, 2000 A statistical analysis of two peaks (pre-midnight and post-midnight) occurrence in NmF2 daily variations was made on a latitudinal chain of four ionosonde stations in the Eurasian longitudinal sector.
A. V. Mikhailov +7 more
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Toward the Reconstruction of Substorm‐Related Dynamical Pattern of the Radiowave Auroral Absorption
Space Weather, 2020 In addition to existing empirical models describing the average distributions of energetic electron precipitation into the auroral ionosphere at different activity levels, we develop and test a semiempirical approach to construct dynamical models ...
V. A. Sergeev +8 more
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Space Weather, 2021 The total solar eclipse over the continental United States on 21 August 2017 offered a unique opportunity to study the dependence of the ionospheric density and morphology on incident solar radiation at different local times. The Super Dual Auroral Radar
M. L. Moses +7 more
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