Results 21 to 30 of about 334 (115)

Observations of traveling ionospheric disturbances driven by gravity waves from sources in the upper and lower atmosphere [PDF]

Annales Geophysicae
The observed traveling ionospheric disturbances (TIDs) are attributed to atmospheric gravity waves generated by auroral sources in the lower thermosphere or gravity waves generated in the troposphere by midlatitude weather systems.
P. Prikryl, D. R. Themens, D. R. Themens, J. Chum, S. Chakraborty, R. G. Gillies, J. M. Weygand   +6 more
doaj   +1 more source

Observations of AGW/TID propagation across the polar cap: a case study [PDF]

Annales Geophysicae, 2011
In this paper, we present observational evidence for the trans-polar propagation of large-scale Traveling Ionospheric Disturbances (TIDs) from their nightside source region to the dayside.
H. T. Cai, H. T. Cai, F. Yin, F. Yin, S. Y. Ma, S. Y. Ma, I. W. McCrea   +6 more
doaj   +1 more source

Investigation on Horizontal and Vertical Traveling Ionospheric Disturbances Propagation in Global‐Scale Using GNSS and Multi‐LEO Satellites

Space Weather, 2022
Global Navigation Satellite System (GNSS) observations from worldwide ground‐based stations have been extensively used in traveling ionospheric disturbance (TID) detections.
Xiaodong Ren, Dengkui Mei, Hang Liu, Xiaohong Zhang   +3 more
doaj   +1 more source

Direct Connection Between Auroral Oval Streamers/Flow Channels and Equatorward Traveling Ionospheric Disturbances

Frontiers in Astronomy and Space Sciences, 2021
We use simultaneous auroral imaging, radar flows, and total electron content (TEC) measurements over Alaska to examine whether there is a direct connection of large-scale traveling ionospheric disturbances (LSTIDs) to auroral streamers and associated ...
Larry R. Lyons, Yukitoshi Nishimura, Shunrong Zhang, Anthea Coster, Jiang Liu, Jiang Liu, William A. Bristow, Ashton S. Reimer, Roger H. Varney, Don L. Hampton   +9 more
doaj   +1 more source

CubeSat GPS Observation of Traveling Ionospheric Disturbances After the 2022 Hunga‐Tonga Hunga‐Ha'apai Volcanic Eruption and Its Potential Use for Tsunami Warning

Earth and Space Science, 2023
Multiple passages of the atmospheric (Lamb) waves were recorded globally after the Hunga Tonga‐Hunga Ha'apai (HTHH) volcanic eruption on 15 January 2022.
Shin‐Chan Han, Simon McClusky, T. Dylan Mikesell, Lucie Rolland, Emile Okal, Craig Benson   +5 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

A Method for Determining Parameters of Mid-Scale Traveling Ionospheric Disturbances

Sensors
The growing amount of available experimental data on the Earth’s ionosphere total electron content measurements requires the development of modern data processing instruments. Traveling ionospheric disturbances (TIDs) are one of the ionospheric phenomena
Alexey Andreyev, Vitaliy Kapytin, Artur Yakovets, Yekaterina Chsherbulova   +3 more
doaj   +1 more source

Travelling ionospheric disturbance properties deduced from Super Dual Auroral Radar measurements [PDF]

Annales Geophysicae, 2000
Based on modeling of the perturbations in power and elevation angle produced by travelling ionospheric disturbances (TIDs), and observed by the Super Dual Auroral Radar Network, procedures for determining the TID properties are suggested.
J. W. MacDougall, J. W. MacDougall, D. A. Andre, G. J. Sofko, C.-S. Huang, A. V. Koustov   +5 more
doaj   +1 more source

Investigation of ionospheric response to a moderate geomagnetic storm over the mid-latitude of Saudi Arabia

Open Astronomy
This study investigated the ionospheric response to a moderate geomagnetic storm recorded on May 14, 2019, with a minimum disturbance storm time (Dst) index of −70-70 nT. Observations from three Global Positioning System (GPS) stations (RFHA, 29.6∘{\text{
Alenazi Moqbil Salem, Nooreldeen Hassan Mahdy, Ahmed Ayman Mahmoud, Yossuf Mohamed, Lomotey Solomon Otoo, Yassen Ahmed, Mahrous Ayman   +6 more
doaj   +1 more source

A study of Traveling Ionospheric Disturbances and Atmospheric Gravity Waves using EISCAT Svalbard Radar IPY-data [PDF]

Annales Geophysicae, 2011
We present a statistical study of Traveling Ionospheric Disturbances (TIDs) as observed by the EISCAT Svalbard Radar (ESR) during the continuous IPY-run (March 2007–February 2008) with field-aligned measurements.
A. Vlasov, A. Vlasov, A. Vlasov, K. Kauristie, M. van de Kamp, J.-P. Luntama, J.-P. Luntama, A. Pogoreltsev   +7 more
doaj   +1 more source