Results 91 to 100 of about 5,388 (217)

Ionospheric response to the weak geomagnetic storm of 1–2 February 2025 in the Weddell Sea Anomaly region: observations from Ukrainian Antarctic Akademik Vernadsky station

Український антарктичний журнал
The ionospheric response to the weak geomagnetic storm of 1–2 February 2025 was studied within the Weddell Sea Anomaly region. The behavior of the key ionospheric parameters (NmF2 and hmF2) was analysed using ionosonde observations from the Ukrainian ...
Maryna Reznychenko, Oleksandr Bogomaz, Dmytro Kotov, Taras Zhivolup, Kateryna Martynova, Viktor Burmaka, Vyacheslav Kolodyazhnyi   +6 more
doaj   +1 more source

Corrigendum: Multi-instrument observations of the Pajala fireball: Origin, characteristics, and atmospheric implications

Frontiers in Astronomy and Space Sciences, 2022
Juha Vierinen, Juha Vierinen, Torstein Aslaksen, Jorge Luis Chau, Maria Gritsevich, Björn Gustavsson, Daniel Kastinen, Johan Kero, Alexandre Kozlovsky, Tormod Kværna, Steinar Midtskogen, Sven Peter Näsholm, Thomas Ulich, Ketil Vegum, Mark Lester   +14 more
doaj   +1 more source

Satellite Traces: Ionogram Signatures of Bottom‐Side Upwelling Structures ‐ A Simulation Study

Geophysical Research Letters
Satellite Traces (STs) are the important ionogram signatures for the presence of upwellings in the bottom‐side ionosphere, which provide the necessary seed perturbation for the development of equatorial plasma bubbles (EPBs).
M. Ankita, S. Tulasi Ram, T. Yokoyama, R. T. Tsunoda, A. P. Dimri, S. Mondal, Chinmaya Nayak   +6 more
doaj   +1 more source

Generation of equatorial plasma bubble after the 2022 Tonga volcanic eruption. [PDF]

Sci Rep, 2023
Shinbori A, Sori T, Otsuka Y, Nishioka M, Perwitasari S, Tsuda T, Kumamoto A, Tsuchiya F, Matsuda S, Kasahara Y, Matsuoka A, Nakamura S, Miyoshi Y, Shinohara I.   +13 more
europepmc   +1 more source

Long-Term Observation of the Quasi-3-Hour Large-Scale Traveling Ionospheric Disturbances by the Oblique-Incidence Ionosonde Network in North China. [PDF]

Sensors (Basel), 2021
Zhang R, Chen G, Li Y, Zhang S, Gong W, He Z, Zhang M.   +6 more
europepmc   +1 more source

Analysis of daytime medium-scale traveling ionospheric disturbances by two-dimensional maps of total electron content perturbation and ionograms

Учёные записки Казанского университета: Серия Физико-математические науки, 2017
To analyze midlatitude medium-scale traveling ionospheric disturbances (MSTIDs), the sufficiently dense network of GNSS receivers (more than 150 ground-based stations) have been used. For the first time, daytime MSTIDs in the form of their main signature
R.O. Sherstyukov, A.D. Akchurin
doaj  

Thermospheric parameters contribution to the formation of Yakutsk F₂-layer diurnal summer time anomaly. [PDF]

Sci Rep, 2022
Mikhailov AV, Perrone L.
europepmc   +1 more source

First ICON-FUV Nighttime NmF2 and hmF2 Comparison to Ground and Space-Based Measurements. [PDF]

J Geophys Res Space Phys, 2021
Wautelet G, Hubert B, Gérard JC, Immel TJ, Frey HU, Mende SB, Kamalabadi F, Kamaci U, England SL.   +8 more
europepmc   +1 more source

Comparison of Total Electron Content Sources Over Europe During Solar Minimum and Maximum Years (2020 and 2024)

Geodetski Vestnik
In this paper, we presented a comparison of Total Electron Content (TEC) obtained from various sources: ionosondes, the IRI model, the NeQuick model, and Global Navigation Satellite Systems (GNSS).
Stefan Krstić, Miljana Todorović-Drakul, Sanja Grekulović, Dušan Petković, Oleg Odalović   +4 more
doaj   +1 more source

Statistical precursors of a strong earthquake on April 6, 2009 on the Apennine Peninsula. [PDF]

Heliyon, 2022
Volvach AE, Kogan LP, Kanonidi KH, Bubukin IT, Shtenberg VB, Volvach LN, Biazitov DT.   +6 more
europepmc   +1 more source