Results 181 to 190 of about 47,066 (211)

On one feature of the F-spread phenomenon in the midlatitude ionosphere

Radiophysics and Quantum Electronics, 1995
We report on the results of observations of reflected SW signals by vertical sounding (VS) of the ionosphere in Zimenki, Nizhny Novgorod region, in the summers of 1994 and 1995. We discovered an anomalous increase in the multipath propagation of the received SW signals during ionospheric F-spread: The duration of a multipath reflected signal increased ...
V. A. Alimov, F. I. Vybornov, A. V. Rakhlin   +2 more
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Observation of the energy distribution of thermal electrons in the midlatitude ionosphere

Planetary and Space Science, 1985
Abstract Results of measurements of the energy distribution of thermal electrons below 1 eV in a midlatitude upper atmosphere are presented and compared with some recent measurements at other places. Measurements are based on the Druyvesteyn method using Langmuir probes.
H. Amemiya, K. Oyama, K. Hirao
openaire   +1 more source

Spread-F in the midlatitude ionospheric trough zone

Journal of Atmospheric and Terrestrial Physics, 1973
Abstract An examination is made of the relationship between spread- F at higher midlatitudes to the formation of the F -region trough. It is concluded that the occurrence of spread- F in the region is inversely proportional to the ‘depth’ of the trough.
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Springtime effects in the mesosphere and ionosphere observed at northern midlatitudes

Planetary and Space Science, 2006
Abstract Nighttime volume emission rates and rotational temperatures, obtained from simultaneous observations of molecular oxygen and hydroxyl airglow at Almaty (43.25°N, 76.92°E) and Sierra-Nevada (37.2°N, 356.7°E), along with ionospheric density derived from foF2 in the vertical sounding ionograms over Almaty are analysed to study the variability ...
V.M. Aushev, I.N. Fedulina, G.I. Gordienko, M.J. López-González, A.I. Pogoreltsev, S.Sh. Ryazapova, M.G. Shepherd   +6 more
openaire   +1 more source

Dusty plasma in the midlatitude ionosphere during meteor showers

Geomagnetism and Aeronomy, 2006
The emission (or modulation) line, which manifests itself during high-speed (the speed of entry into the atmosphere is about 70 km/s) meteor showers (Perseids, Orionids, Leonids), has been detected in the fluctuation spectra of ionospheric plasma radio noise at λ = 2 m.
S. I. Musatenko, Yu. S. Musatenko, E. V. Kurochka, A. V. Lastochkin, V. Ya. Cholij, O. I. Maksimenko, A. S. Slipchenko   +6 more
openaire   +1 more source

A study on the nighttime midlatitude ionospheric trough

Journal of Geophysical Research: Space Physics, 2011
Maosheng He, Libo Liu, Weixing Wan, Biqiang Zhao   +3 more
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Instabilities in the Midlatitude Ionosphere in Terms of E–F Coupling

2011
There are two intriguing phenomena in the midlatitude ionosphere: quasi-periodic (QP) radar echoes associated with a sporadic-E (E s) layer in the E region and medium-scale traveling ionospheric disturbances (MSTIDs) in the F region, both of which often show northwest–southeast alignment and propagate southwestward in the Northern Hemisphere.
openaire   +1 more source

Generation of an Electric Current by a Tsunami Wave in the Midlatitude Ionosphere

Geomagnetism and Aeronomy, 2021
V. M. Sorokin, A. K. Yashchenko
openaire   +1 more source

Winter Nighttime Enhancement of the Midlatitude Ionosphere: Contribution From the Diffusive and Wind-Driven Plasma Transport

Journal of Geophysical Research: Space Physics, 2023
Yongqiang Hao, Quanhan Li, Donghe Zhang
exaly  

Midlatitude Ionospheric Dynamics and Disturbances: Introduction

2013
Paul M. Kintner, Anthea J. Coster, Tim Fuller-Rowell, Anthony J. Mannucci, Michael Mendillo, Roderick Heelis   +5 more
openaire   +1 more source