Results 51 to 60 of about 2,360 (197)

Some characteristics of large-scale travelling ionospheric disturbances and a relationship between the F₂ layer height rises of these disturbances and equatorial pre-sunrise events [PDF]

Annales Geophysicae, 2010
Initially some characteristics of large-scale travelling ionospheric disturbances (LS-TIDs) have been discussed briefly particularly as reported in the early literature.
G. G. Bowman, I. K. Mortimer
doaj   +1 more source

Interpreting Observations of Large‐Scale Traveling Ionospheric Disturbances by Ionospheric Sounders [PDF]

Journal of Geophysical Research: Space Physics, 2017
AbstractFrom July to October 2015, the Australian Defence Science and Technology Group conducted an experiment during which a vertical incidence sounder (VIS) was set up at Alice Springs Airport. During September 2015 this VIS observed the passage of many large‐scale traveling ionospheric disturbances (TIDs).
L. H. Pederick, M. A. Cervera, T. J. Harris   +2 more
openaire   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

Global distribution of ionospheric scintillations from the Real-Time GPS ROTI [PDF]

, 2018
A global real-time monitoring system has been implemented in the frame of ESA-ESTEC/EGNOS-POfunded project MONITOR. It is based on world-wide GNSS datastreams distributed by means of NTRIP and provides multiple ionospheric indices and products to the ...
García Rigo, Alberto, Hernández Pajares, Manuel, Roma-Dollase, David   +2 more
core  

Characteristics of medium-scale travelling ionospheric disturbances observed near the Antarctic Peninsula by HF radar [PDF]

, 2013
We present a survey of medium-scale traveling ionospheric disturbances (MSTIDs) observed by a Super Dual Auroral Radar Network HF radar located in the Falkland Islands between May 2010 and April 2011.
Freeman, M. P., Grocott, A., Hosokawa, K., Ishida, T., Lester, M., Milan, S. E., Sato, N., Yukimatu, A. S.   +7 more
core   +2 more sources

Topside Refractive Irregularities and Travelling Ionospheric Disturbances [PDF]

Australian Journal of Physics, 1967
Munro (1950) deduced from ground-based observations that traveling ionospheric disturbances (T.LD.'s) are large-scale distortions of the electron density contours, which travel through the ionosphere, and Calvert and Schmid (1964) attributed extra traces and distortions of the main echo traces, which occur near the critical frequency of topside ...
openaire   +1 more source

First Quantitative Results on the Response of Green and Red Line Dayglow Emissions to Solar Flares of Different Magnitudes

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Flares originate from the impulsive release of magnetic energy in the solar atmosphere. The rise in X‐ray flux enhances ionization/electron content in the upper atmosphere, modifying the photochemical and dynamical processes that govern the ionosphere‐thermosphere behavior.
Komal, Duggirala Pallamraju
wiley   +1 more source

New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga–Hunga Ha’apai volcano

Earth, Planets and Space, 2023
The Hunga Tonga–Hunga Ha’apai (HTHH) undersea volcanic eruption that occurred at 04:15 UT on 15 January 2022 is one of the most explosive events in the modern era, and a vertical plume reached approximately 55 km, corresponding to a height of the lower ...
Atsuki Shinbori, Yuichi Otsuka, Takuya Sori, Michi Nishioka, Perwitasari Septi, Takuo Tsuda, Nozomu Nishitani, Atsushi Kumamoto, Fuminori Tsuchiya, Shoya Matsuda, Yoshiya Kasahara, Ayako Matsuoka, Satoko Nakamura, Yoshizumi Miyoshi, Iku Shinohara   +14 more
doaj   +1 more source

St. Patrick’s Day 2015 geomagnetic storm analysis based on Real Time Ionosphere Monitoring [PDF]

, 2017
A detailed analysis is presented for the days in March, 2015 surrounding St. Patrick’s Day 2015 geomagnetic storm, based on the existing real-time and near real-time ionospheric models (global or regional) within the group, which are mainly based on ...
Agrotis, Loukis, Altadill, David, Beniguel, Yannick, Berdermann, Jens, Bergeot, Nicolas, Blanch, Estefania, Dettmering, Denise, Erdogan, Eren, Feltens, Joachim, Fuller Rowell, Tim, Galkin, Ivan, García Rigo, Alberto, Ghoddousi Fard, Reza, Gulyaeva, Tamara L., Haralambous, Haris, Hernández Pajares, Manuel, Komjathy, Attila, Krankowski, Andrzej, Kriegel, Martin, Krypiak-Gregorczyk, Anna, Li, Zishen, Olivares, German, Orus-Perez, Raul, Prol, Fabricio dos Santos, Roma Dollase, David, Terkildsen, Michael, Vergados, Panagiotis, Zandbergen, René   +27 more
core  

A plasma vortex revisited: The importance of including ionospheric conductivity measurements [PDF]

, 2004
In an earlier paper [Kosch et al., 1998], simultaneous all-sky TV imager and Scandinavian Twin Auroral Radar Experiment (STARE) observations of an ionospheric plasma vortex located poleward of an auroral arc were presented.
Amm, O., Kosch, Mike J., Scourfield, M.W.J.   +2 more
core   +1 more source