Results 1 to 10 of about 47,066 (211)
Applied Sciences (Switzerland)The present study investigates the characteristics of ionospheric irregularities at middle latitudes by examining the association between spread F (SF) events detected by Digisondes and medium-scale travelling ionospheric disturbances (MSTIDs) detected ...
Krishnendu Sekhar Paul
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Estimation of Planar Trend Model Parameters for Midlatitude Ionosphere
Journal of Geophysical Research: Space Physics, 2020 AbstractBeing under influence of the polar and equatorial regions, the midlatitude ionosphere poses an important challenge in structural modeling. In this study, the general understanding of regional planar trend model is investigated for 2011 by estimation of trend coefficients in the least squares sense.
Feza Arıkan, Solen Kumbay Yıldız
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Radio Science, 2020 AbstractSpatiotemporal variability of ionosphere poses a major challenge in characterization of observable parameters, critical frequency of F2 layer (foF2), maximum ionization height (hmF2), total electron content (TEC), and slab thickness. The nature of the multiscale space‐time variability of ionosphere can be modeled as a random field.
Ozan Koroglu, Feza Arıkan
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Traveling Ionospheric Disturbances in the Vicinity of Storm-Enhanced Density at Midlatitudes. [PDF]
J Geophys Res Space Phys, 2022 AbstractThis study provides first storm time observations of the westward‐propagating medium‐scale traveling ionospheric disturbances (MSTIDs), particularly, associated with characteristic subauroral storm time features, storm‐enhanced density (SED), subauroral polarization stream (SAPS), and enhanced thermospheric westward winds over the continental ...
Zhang SR +11 more
europepmc +5 more sources
On the Electric Fields Produced by Dipolar Coulomb Charges of an Individual Thundercloud in the Ionosphere [PDF]
Journal of Astronomy and Space Sciences, 2015 In this paper we study the transmission of the electrostatic field due to coulomb charges of an individual thundercloud into the midlatitude ionosphere, taking into account the total geomagnetic field integrated Pedersen conductivity of the ionosphere.
Vitaly P. Kim, Valery V. Hegai
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The spatiotemporal development of the midlatitude troughs and subauroral ion drift during a geomagnetic storm observed by multiple DMSP satellites [PDF]
Earth, Planets and SpaceSubauroral ion drift (SAID) is a narrow and rapid westward ion flow observed in the subauroral ionosphere during geomagnetic storms and substorms.
Heechan Cha +4 more
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Effects of Solar Wind Variations on the Midlatitude Ionosphere [PDF]
Journal of Geophysical Research: Space Physics, 2002 It is known that the solar wind has significant effect on the magnetospheric convection and that magnetospheric electric fields can penetrate into the midlatitude and low‐latitude ionosphere. In this paper, we present observations of midlatitude ionospheric plasma perturbations during two events.
Philip J. Erickson +2 more
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On the Coupling of Layer Instabilities in the Nighttime Midlatitude Ionosphere [PDF]
Journal of Geophysical Research: Space Physics, 2006 There are two plasma‐structuring mechanisms that are known to operate at night in the midlatitude ionosphere, the Perkins instability (Perkins, 1973) in the F region, and the more recently discovered sporadic‐ E layer ( E
Roland T Tsunoda
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Evidence for the Magnetoionic Nature of Oblique VHF Reflections from Midlatitude Sporadic-E Layers
Atmosphere, 2022 Mid-latitude sporadic-E (Es) is an intermittent phenomenon of the lower E region of the ionosphere. Es clouds are thin, transient, and patchy layers of intense ionization, with ionization densities which can be much higher than in the background ...
Chris Deacon +3 more
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More evidence for a planetary wave link with midlatitude E region coherent backscatter and sporadic E layers [PDF]
Annales Geophysicae, 2000 Measurements of midlatitude E region coherent backscatter obtained during four summers with SESCAT, a 50 MHz Doppler system operating in Crete, Greece, and concurrent ionosonde recordings from the same ionospheric volume obtained with a CADI for one ...
M. Voiculescu +5 more
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