Results 41 to 50 of about 197,251 (258)

The Radiation Transfer at a Layer of Magnetized Plasma With Random Irregularities [PDF]

, 1998
The problem of radio wave reflection from an optically thick plane monotonous layer of magnetized plasma is considered at present work. The plasma electron density irregularities are described by spatial spectrum of an arbitrary form.
A G Bronin, Bronin A G, Bronin A G, Dennis J, G A Zhbankov, N A Zabotin, Setty C S, Vodolazkin V I, Zabotin N A   +8 more
core   +2 more sources

Small-Scale Ionospheric Irregularities of Auroral Origin at Mid-latitudes during the 22 June 2015 Magnetic Storm and Their Effect on GPS Positioning

Remote Sensing, 2020
Small-scale ionospheric irregularities affect navigation and radio telecommunications. We studied small-scale irregularities observed during the 22 June 2015 geomagnetic storm and used experimental facilities at the Institute of Solar-Terrestrial Physics
Yury V. Yasyukevich, R. Vasilyev, K. Ratovsky, A. Setov, M. V. Globa, S. Syrovatskii, A. Yasyukevich, A. Kiselev, A. Vesnin   +8 more
semanticscholar   +1 more source

Ionosphere modification and topology of ionospheric magnetically-oriented irregularities [PDF]

E3S Web of Conferences, 2020
One of the perspective directions of active impact on the ionosphere is the for-mation of electron concentration irregularities. Such irregularities can be used to increase the efficiency of radar systems and signal transfer in an interlayer ionospheric waveguide.
openaire   +2 more sources

AATR an ionospheric activity indicator specifically based on GNSS measurements [PDF]

, 2018
This work reviews an ionospheric activity indicator useful for identifying disturbed periods affecting the performance of Global Navigation Satellite System (GNSS). This index is based in the Along Arc TEC Rate (AATR) and can be easily computed from dual-
González Casado, Guillermo, Ibáñez Segura, Deimos, Juan Zornoza, José Miguel, Orús Pérez, Raul, Rovira Garcia, Adrià, Sanz Subirana, Jaume   +5 more
core   +2 more sources

Multi-Instrument Observation of the Ionospheric Irregularities and Disturbances during the 23-24 March 2023 Geomagnetic Storm

Remote Sensing
This work investigates the ionospheric response to the March 2023 geomagnetic storm over American and Asian sectors from total electron content (TEC), rate of TEC index, ionospheric heights, Swarm plasma density, radio occultation profiles of Formosat-7 ...
Afnan Tahir, Falin Wu, Munawar Shah, C. Amory-Mazaudier, P. Jamjareegulgarn, Tobias G. W. Verhulst, M. A. Ameen   +6 more
semanticscholar   +1 more source

GPS TEC Fluctuations in the Low and High Latitudes During the 2015 St. Patrick`s Day Storm [PDF]

Journal of Astronomy and Space Sciences, 2017
As a part of collaborative efforts to understand ionospheric irregularities, the Korea ionospheric scintillation sites (KISS) network has been built based on global positioning system (GPS) receivers with sampling rates higher than 1 Hz.
Jong-Kyun Chung, Junseok Hong, Sung-Moon Yoo, Jeong-Han Kim, Geonhwa Jee, Valery V. Hegai   +5 more
doaj   +1 more source

The climatology of ionospheric plasma bubbles and irregularities over Brazil [PDF]

Annales Geophysicae, 2005
In this paper, we examine ionospheric plasma depletions (or bubbles) and irregularities observed by photometers and a ground-based receiver of the global positioning system (GPS) both located in Brazil, South America.
F. D. Chu, F. D. Chu, J. Y. Liu, J. Y. Liu, H. Takahashi, J. H. A. Sobral, M. J. Taylor, A. F. Medeiros   +7 more
doaj   +1 more source

A measure of ionospheric irregularities: zonal velocity and its implications for L-band scintillation at low-latitudes

Earth and Planetary Physics, 2021
We estimate the zonal drift velocity of small-scale ionospheric irregularities at low latitude by leveraging the spaced-receivers technique applied to two GNSS receivers for scintillation monitoring installed along the magnetic parallel passing in ...
Claudio Cesaroni, Luca Spogli, Giorgiana De Franceschi, Juliana Garrido Damaceno, Marcin Grzesiak, Bruno Vani, Joao Francisco Galera Monico, Vincenzo Romano, Lucilla Alfonsi, Massimo Cafaro   +9 more
doaj   +1 more source

Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results [PDF]

, 2014
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are presented.
Baše, J., Burešová, D., Cabrera, M. A., Cangemi, José Ignacio, Chum, J., Ezquer, Rodolfo Gerardo, Fišer, J., Hruška, F., Ise, Juan Eduardo, Laštovička, J., Miranda Bonomi, Fernando Alberto, Molina, Maria Graciela, Šindelářová, T.   +12 more
core   +2 more sources

On effective conductivity of the ionosphere with random irregularities [PDF]

Annales Geophysicae, 1995
The influence of stochastic irregularities of the ionosphere on its effective conductivity has been estimated. The study was carried out for large scale inhomogeneities and quasistationary electromagnetic fields.
L. Alperovich, I. Chaikovsky
doaj   +1 more source