Results 41 to 50 of about 184,127 (275)

Spatiotemporal evolution of radio wave pump-induced ionospheric phenomena near the fourth electron gyroharmonic [PDF]

, 2007
On 12 November 2001, the European Incoherent Scatter (EISCAT) high-frequency (HF) radio wave transmitter facility, operating in O-mode at 5.423 MHz with 550 MW effective radiated power, produced artificial optical rings which appeared immediately at ...
Ashrafi, M., Isham, B., Kaila, K., Kosch, Mike J.   +3 more
core   +1 more source

Equatorial Plasma Bubbles: A Review

Atmosphere, 2022
The equatorial plasma bubble (EPB) phenomenon is an important component of space weather as the ionospheric irregularities that develop within EPBs can have major detrimental effects on the operation of satellite-based communication and navigation ...
Archana Bhattacharyya
doaj   +1 more source

Pembangunan pembelajaran mobile dalam kejuruteraan [PDF]

, 2016
Perkembangan pembelajaran mobile hari ini memberi peluang untuk teknologi mobile dan teknologi Computer Aided Design (CAD) diintegrasikan dalam proses reka bentuk.
Ismail, Irwan Mahazir
core   +1 more source

Climatology of GPS phase scintillation and HF radar backscatter for the high-latitude ionosphere under solar minimum conditions [PDF]

Annales Geophysicae, 2011
Maps of GPS phase scintillation at high latitudes have been constructed after the first two years of operation of the Canadian High Arctic Ionospheric Network (CHAIN) during the 2008–2009 solar minimum.
P. Prikryl, P. T. Jayachandran, S. C. Mushini, R. Chadwick   +3 more
doaj   +1 more source

Ionospheric plasma irregularities studied with Swarm satellites

E3S Web of Conferences, 2018
To study and characterise the ionospheric plasma irregularities at all latitudes, one can employ in-situ measurements by satellites in polar orbits, such as the European Space Agency’s Swarm mission.
Miloch Wojciech J., Jin Yaqi, Xiong Chao, Kervalishvili Guram, Spicher Andres, Clausen Lasse B.N., Stolle Claudia   +6 more
doaj   +1 more source

Daytime F-region irregularity triggered by rocket-induced ionospheric hole over low latitude

Progress in Earth and Planetary Science, 2018
Unexpected daytime F-region irregularities following the appearance of an ionospheric hole have been observed over low latitude. The irregularities developed initially above the F-region peak height (~ 360 km) with a thickness of about 30 km and an east ...
Guozhu Li, Baiqi Ning, M. A. Abdu, Chi Wang, Yuichi Otsuka, Weixing Wan, Jiuhou Lei, Michi Nishioka, Takuya Tsugawa, Lianhuan Hu, Guotao Yang, Chunxiao Yan   +11 more
doaj   +1 more source

Spatial and Temporal Evolution of Different‐Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

Space Weather, 2020
We present a multi‐instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate‐to‐strong geomagnetic storm on 27–28 May 2017. From
V. B. Ovodenko, M. V. Klimenko, I. E. Zakharenkova, A. V. Oinats, D. S. Kotova, A. V. Nikolaev, I. V. Tyutin, D. D. Rogov, K. G. Ratovsky, D. V. Chugunin, P. A. Budnikov, J. C. Coxon, B. J. Anderson, A. A. Chernyshov   +13 more
doaj   +1 more source

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

Ionospheric irregularities and scintillations: a direct comparison of in situ density observations with ground-based L-band receivers

Earth, Planets and Space, 2020
Ionospheric irregularities can affect satellite communication and navigation by causing scintillations of radio signals. The scintillations are routinely measured using ground-based networks of receivers.
Sharon Aol, S. Buchert, E. Jurua
semanticscholar   +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