Results 21 to 30 of about 336 (149)

Ionospheric disturbances over South America related to Tonga volcanic eruption

Earth, Planets and Space, 2023
On January 15, 2022, we observed various unusual atmospheric wave events over South America: Atmospheric pressure waves (Lamb mode) around 12:30 to 17:30 UT, tsunamis along the Chilean coast at around 17:00 to 19:00 UT, and ionospheric disturbances ...
H. Takahashi, C. A. O. B. Figueiredo, D. Barros, C. M. Wrasse, G. A. Giongo, R. H. Honda, L. F. R. Vital, L. C. A. Resende, P. K. Nyassor, T. T. Ayorinde, C. S. Carmo, M. B. Padua, Y. Otsuka   +12 more
doaj   +2 more sources

Simultaneous Observation of Equatorial Plasma Bubbles and Traveling Ionospheric Disturbances Over Indonesia Following the 15 January 2022 Tonga Volcano Eruption

Space Weather
We report our analysis of multi‐diagnostic ionospheric observations over Indonesia following the 15 January 2022 Tonga volcano eruption. Observation data from the Indonesian global navigation satellite system (GNSS) CORS network, ionosondes, and GNSS ...
Asnawi Husin, Varuliantor Dear, Agri Faturahman, Sefria Anggarani, Annis Siradj Mardiani, Adi Purwono, Jiyo Harjosuwito, Rezy Pradipta   +7 more
doaj   +2 more sources

Inferring neutral winds in the ionospheric transition region from atmospheric-gravity-wave traveling-ionospheric-disturbance (AGW-TID) observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster [PDF]

Annales Geophysicae, 2023
Abstract. Atmospheric gravity waves and traveling ionospheric disturbances can be observed in the neutral atmosphere and the ionosphere at a wide range of spatial and temporal scales. Especially at medium scales, these oscillations are often not resolved in general circulation models and are parameterized.
F. Günzkofer, D. Pokhotelov, G. Stober, I. Mann, S. L. Vadas, E. Becker, A. Tjulin, A. Kozlovsky, M. Tsutsumi, M. Tsutsumi, N. Gulbrandsen, S. Nozawa, M. Lester, E. Belova, J. Kero, N. J. Mitchell, N. J. Mitchell, C. Borries   +17 more
openaire   +4 more sources

Studies of traveling ionospheric disturbances using rapid-run ionosonde, EISCAT radar and GPS TEC [PDF]

, 2022
The main topic of this thesis is Traveling Ionospheric Disturbances using multiple instruments at high and low latitudes. In high latitudes the work mainly focuses on the occurrence behavior of TIDs and its subsequent causing mechanisms as well as the ...
Moges, Samson Tilahun
core   +2 more sources

The synthesis of travelling ionospheric disturbance (TID) signatures in HF radar observations using ray tracing [PDF]

Annales Geophysicae, 2000
Abstract. Characteristic signatures are often observed in HF radar range-time-intensity plots when travelling ionospheric disturbances (TIDs) are present. These signatures, in particular the variation of the F-region skip distance, have been synthesised using a ray tracing model. The magnitude of the skip variation is found to be a function of the peak
A. J. Stocker, A. J. Stocker, N. F. Arnold, T. B. Jones   +3 more
openaire   +5 more sources

A large-scale traveling ionospheric disturbance during the magnetic storm of 15 September 1999 [PDF]

, 2002
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/94957/1/jgra16176 ...
Shiokawa, K., Saito, A., Knipp, D. J., Igarashi, K., Yumoto, K., Otsuka, Y., Ridley, A.J., Ridley, A. J., Knipp, D.J., Ogawa, T., Balan, N.   +10 more
core   +1 more source

Observations of Unusual Daytime Range Spread F at Middle Latitude During the Afternoon Hours

Space Weather, 2021
In this study, an unusual daytime range spread F event recorded by the ionosonde installed at Zhangye (ZHY, 39.4°N, 100.13°E, dip latitude 29.65°N) station during the afternoon of December 23, 2016 was presented.
Lehui Wei, Chunhua Jiang, Ting Lan, Wenxuan Wang, Hua Shen, Ercha Aa, Wengeng Huang, Jing Liu, Guobin Yang, Yaogai Hu, Zhengyu Zhao   +10 more
doaj   +1 more source

Incoherent scatter radar observations of AGW/TID events generated by the moving solar terminator [PDF]

Annales Geophysicae, 1998
Observations of traveling ionospheric disturbances (TIDs) associated with atmospheric gravity waves (AGWs) generated by the moving solar terminator have been made with the Millstone Hill incoherent scatter radar.
V. G. Galushko, V. V. Paznukhov, Y. M. Yampolski, J. C. Foster   +3 more
doaj   +1 more source

Global Propagation of Ionospheric Disturbances Associated With the 2022 Tonga Volcanic Eruption [PDF]

, 2022
In this study, we use measurements from over 4,735 globally distributed Global Navigation Satellite System receivers to track the progression of traveling ionospheric disturbances (TIDs) associated with the 15 January 2022 Hunga Tonga-Hunga Ha'apai ...
Ben Reid, Themens, David R.; id_orcid, Vasylkevych, Sergiy, Žagar, Nedjeljka, David R. Themens, Elvidge, Sean; id_orcid, P. T. Jayachandran, Reid, Ben; id_orcid, Alan Wood, Watson, Chris, Sergiy Vasylkevych, Prikryl, Paul, Chris Watson, Nedjeljka Žagar, Wood, Alan, Anthony McCaffrey, Jayachandran, P. T., Sean Elvidge, McCaffrey, Anthony, Paul Prikryl   +19 more
core   +1 more source

Tomographic Imaging of Traveling Ionospheric Disturbances Using GNSS and Geostationary Satellite Observations [PDF]

, 2020
Traveling ionospheric disturbances (TIDs) are the manifestations of atmospheric gravity waves in the ionosphere. These disturbances have practical importance because they affect satellite navigation technologies such as Global Navigational Satellite ...
Bust, Gary, Mitchell, Cathryn, Karl Bolmgren, Bolmgren, Karl, Gary Bust, Jon Bruno, Bruno, Jon, Cathryn Mitchell   +7 more
core   +1 more source