Results 1 to 10 of about 2,360 (197)

Determining spatio-temporal characteristics of coseismic travelling ionospheric disturbances (CTID) in near real-time [PDF]

Scientific Reports, 2021
Earthquakes are known to generate ionospheric disturbances that are commonly referred to as co-seismic travelling ionospheric disturbances (CTID). In this work, for the first time, we present a novel method that enables to automatically detect CTID in ...
Boris Maletckii, Elvira Astafyeva
doaj   +2 more sources

Efficient Usage of Dense GNSS Networks in Central Europe for the Visualization and Investigation of Ionospheric TEC Variations [PDF]

Sensors, 2017
The technique of the orthogonal projection of ionosphere electronic content variations for mapping total electron content (TEC) allows us to visualize ionospheric irregularities.
Grzegorz Nykiel, Yevgen M. Zanimonskiy, Yuri M. Yampolski, Mariusz Figurski   +3 more
doaj   +2 more sources

A LOFAR observation of ionospheric scintillation from two simultaneous travelling ionospheric disturbances [PDF]

Journal of Space Weather and Space Climate, 2020
This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cassiopeia A, taken overnight on 18–19 August 2013, and ...
Fallows Richard A., Forte Biagio, Astin Ivan, Allbrook Tom, Arnold Alex, Wood Alan, Dorrian Gareth, Mevius Maaijke, Rothkaehl Hanna, Matyjasiak Barbara, Krankowski Andrzej, Anderson James M., Asgekar Ashish, Avruch I. Max, Bentum Mark, Bisi Mario M., Butcher Harvey R., Ciardi Benedetta, Dabrowski Bartosz, Damstra Sieds, de Gasperin Francesco, Duscha Sven, Eislöffel Jochen, Franzen Thomas M.O., Garrett Michael A., Grießmeier Jean-Matthias, Gunst André W., Hoeft Matthias, Hörandel Jörg R., Iacobelli Marco, Intema Huib T., Koopmans Leon V.E., Maat Peter, Mann Gottfried, Nelles Anna, Paas Harm, Pandey Vishambhar N., Reich Wolfgang, Rowlinson Antonia, Ruiter Mark, Schwarz Dominik J., Serylak Maciej, Shulevski Aleksander, Smirnov Oleg M., Soida Marian, Steinmetz Matthias, Thoudam Satyendra, Toribio M. Carmen, van Ardenne Arnold, van Bemmel Ilse M., van der Wiel Matthijs H.D., van Haarlem Michiel P., Vermeulen René C., Vocks Christian, Wijers Ralph A.M.J., Wucknitz Olaf, Zarka Philippe, Zucca Pietro   +57 more
doaj   +16 more sources

Airglow-imager based observation of possible influences of subtropical mesospheric gravity waves on F-region ionosphere over Jammu & Kashmir, India [PDF]

Scientific Reports, 2021
As a joint research collaboration between the National Atmospheric Research Laboratory (NARL), and the University of Kashmir (KU), NARL installed an all-sky airglow CCD imager (with centre wavelengths of 630 nm, 557.7 nm [2 nm band widths] and 840 nm ...
T. K. Ramkumar, Manzoor Ahmad Malik, Bilal Ahmad Ganaie, Aashiq Hussain Bhat   +3 more
doaj   +2 more sources

Analysis of the positive ionospheric response to a moderate geomagnetic storm using a global numerical model [PDF]

Annales Geophysicae, 2000
Current theories of F-layer storms are discussed using numerical simulations with the Upper Atmosphere Model, a global self-consistent, time dependent numerical model of the thermosphere-ionosphere-plasmasphere-magnetosphere system including ...
A. A. Namgaladze, A. A. Namgaladze, A. A. Namgaladze, A. A. Namgaladze, M. Förster, R. Y. Yurik   +5 more
doaj   +3 more sources

Propagation of Perturbations in the Lower and Upper Atmosphere over the Central Mediterranean, Driven by the 15 January 2022 Hunga Tonga-Hunga Ha’apai Volcano Explosion

Atmosphere, 2022
The Hunga Tonga-Hunga Ha’apai volcano (Pacific Ocean) generated a cataclysmic explosion on 15 January 2022, triggering several atmospheric disturbances at a global scale, as a huge increase in the total electron content (TEC) in the ionosphere, and a ...
Paolo Madonia, Alessandro Bonaccorso, Alessandro Bonforte, Ciro Buonocunto, Andrea Cannata, Luigi Carleo, Claudio Cesaroni, Gilda Currenti, Sofia De Gregorio, Bellina Di Lieto, Marco Guerra, Massimo Orazi, Luigi Pasotti, Rosario Peluso, Michael Pezzopane, Vito Restivo, Pierdomenico Romano, Mariangela Sciotto, Luca Spogli   +18 more
doaj   +1 more source

Ionospheric Tilt Measurements: Application to Traveling Ionospheric Disturbances Climatology Study [PDF]

Radio Science, 2020
AbstractIonospheric tilt is a concept used to characterize local horizontal electron density gradients in the ionosphere using a mirror reflection model. Experimental results are presented that illustrate the validity and accuracy of such approach. Analysis of the tilt measurements collected in 2012–2014 with a digisonde at Ebro observatory (40.8°N, 0 ...
Paznukhov, Vadym V., Altadill, David, Juan Zornoza, José Miguel, Blanch, Estefania   +3 more
openaire   +2 more sources

Traveling Ionospheric Disturbances [PDF]

The Journal of the Acoustical Society of America, 1972
The T.I.D. of 13 May 1964, discussed by Theme appears to have had unusually high amplitude and would seem well suited for further investigation into its possible extension into the southern hemisphere as well as the possible presence of a simultaneous northbound wave.
S. M. Silverman, T. F. Tuan
openaire   +1 more source

Lensing from small-scale travelling ionospheric disturbances observed using LOFAR

Journal of Space Weather and Space Climate, 2022
Observations made using the LOw-Frequency ARray (LOFAR) between 10:15 and 11:48 UT on the 15th of September 2018 over a bandwidth of approximately 25–65 MHz contain discrete pseudo-periodic features of ionospheric origin.
Boyde Ben, Wood Alan, Dorrian Gareth, Fallows Richard A., Themens David, Mielich Jens, Elvidge Sean, Mevius Maaijke, Zucca Pietro, Dabrowski Bartosz, Krankowski Andrzej, Vocks Christian, Bisi Mario   +12 more
doaj   +1 more source

Multi-instrument detection in Europe of ionospheric disturbances caused by the 15 January 2022 eruption of the Hunga volcano

Journal of Space Weather and Space Climate, 2022
The 15 January 2022 eruption of the Hunga volcano provides a unique opportunity to study the reaction of the ionosphere to large explosive events. In particular, this event allows us to study the global propagation of travelling ionospheric disturbances (
Verhulst Tobias G.W., Altadill David, Barta Veronika, Belehaki Anna, Burešová Dalia, Cesaroni Claudio, Galkin Ivan, Guerra Marco, Ippolito Alessandro, Herekakis Themistocles, Kouba Daniel, Mielich Jens, Segarra Antoni, Spogli Luca, Tsagouri Ioanna   +14 more
doaj   +1 more source