Results 91 to 100 of about 93,595 (201)

Diagnostics of artificial ionospheric irregularities using short sounding radio paths

open access: yes, 2020
In this work, we consider the possibilities of diagnostics of artificial ionospheric irregularities with the transverse size l⊥ ≈ 50-200 m, which are excited in the Earth's ionosphere by highpower short-wave radio-frequency radiation from the "Sura ...
Zykov E.   +4 more
core  

Distributions of amplitude and phase fluctuations in tilt ionospheric sounding signals [PDF]

open access: yes, 2004
The impact of amplitude and phase fluctuations in tilt ionospheric sounding signals on the accuracy of determining angles of arrival in small-base antenna systems is discussed.
Teplov V., Petrova I., Bochkarev V.
core  

Classification of Ionograms Obtained from Vertical Incidence Pulsed Ionospheric Radar (VIPIR)/Dynasonde Ionospheric Radar at Jang Bogo Station, Antarctica

open access: yesJournal of Astronomy and Space Sciences
The electron density profiles produced from the ionospheric sounding system are traditionally estimated by the inversion procedure based on the image analysis of the observed ionograms. Jang Bogo Vertical Incidence Pulsed Ionospheric Radar (VIPIR) with
Junho Back   +6 more
doaj   +1 more source

Surface latent heat flux and nighttime LF anomalies prior to the Mw=8.3 Tokachi-Oki earthquake [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2006
Surface Latent Heat Flux (SLHF) is an atmospheric parameter proportional to the evaporation from the Earth's surface. SLHF has been found to exhibit an anomalous behavior in the epicentral region prior to several coastal earthquakes.
G. Cervone   +6 more
doaj  

First Detections of Ionospheric Plasma Density Irregularities from GOES Geostationary GPS Observations during Geomagnetic Storms

open access: yesAtmosphere
In this study, we present the first results of detecting ionospheric irregularities using non-typical GPS observations recorded onboard the Geostationary Operational Environmental Satellites (GOES) mission operating at ~35,800 km altitude.
Iurii Cherniak   +3 more
doaj   +1 more source

Ionospheric effects of solar eclipses at midlatitudes [PDF]

open access: yes, 2009
The influence of solar eclipses on the ionospheric plasma is considered based of the data of midlatitude vertical sounding stations during the entire period from the beginning of ionospheric studies in Russia. Changes in the electron density in the F and
Kovalev A.   +4 more
core  

Distributions of amplitude and phase fluctuations in tilt ionospheric sounding signals

open access: yes, 2020
The impact of amplitude and phase fluctuations in tilt ionospheric sounding signals on the accuracy of determining angles of arrival in small-base antenna systems is discussed.
Teplov V., Petrova I., Bochkarev V.
core  

Ionospheric effects of solar eclipses at midlatitudes

open access: yes, 2020
The influence of solar eclipses on the ionospheric plasma is considered based of the data of midlatitude vertical sounding stations during the entire period from the beginning of ionospheric studies in Russia. Changes in the electron density in the F and
Kovalev A.   +4 more
core  

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