Results 1 to 10 of about 127,101 (245)

Comparison of travelling ionospheric disturbance measurements with thermosphere/ionosphere model results [PDF]

Annales Geophysicae, 2003
Comparisons of modeled and measured responses of the ionosphere to the passage of atmospheric gravity waves are made for data recorded by an ionosonde located at Almaty (76°55' E, 43°15' N) from June 2000 until May 2001.
Ya. F. Ashkaliev, G. I. Gordienko, Ch. Jacobi, Yu. G. Litvinov, V. V. Vodyannikov, A. F. Yakovets   +5 more
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Coupled investigations of ionosphere variations over European and Japanese regions: observations, comparative analysis, and validation of models and facilities

Progress in Earth and Planetary Science, 2021
This paper presents the results of a coordinated measurement campaign with ground based and satellite observations over European and Japanese regions during September 5–6, 2017.
Sergii V. Panasenko, Dmytro V. Kotov, Yuichi Otsuka, Mamoru Yamamoto, Hiroyuki Hashiguchi, Philip G. Richards, Vladimir Truhlik, Oleksandr V. Bogomaz, Maryna O. Shulha, Taras G. Zhivolup, Igor F. Domnin   +10 more
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Investigation of the Pre- and Co-Seismic Ionospheric Effects from the 6 February 2023 M7.8 Turkey Earthquake by a Doppler Ionosonde

Atmosphere, 2023
During the catastrophic M7.8 earthquake in Turkey on 6 February 2023, anomalous effects were revealed in the ionosphere associated with various propagation mechanisms of seismogenic disturbance from the lithosphere up to the height of the ionosphere ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Serik Nurakynov, Azamat Kaldybayev, Vladimir Ryabov, Valery Zhukov   +6 more
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On the possibility of disturbance of the Earth’s dynamic balance by the technogenic impact [PDF]

E3S Web of Conferences, 2019
The article describes the possible disturbance of the Earth’s dynamic balance due to climate changes throughout the last 150 years and technogenic impact.
Vilayev Andrey, Stikharny Alexander
doaj   +1 more source

Development of Methodological, Hardware, and Software of the Incoherent Scatter Radar of Institute of Ionosphere (Kharkiv, Ukraine) [PDF]

International Journal of Electronics and Telecommunications, 2023
We present the met determinate hodological features and new subsystem for receiving, digitizing and processing signals at the intermediate frequency of the incoherent scatter (IS) radar.
Leonid Emelyanov, Artem Miroshnikov
doaj   +1 more source

A new inversion algorithm for backscatter ionogram and its experimental validation [PDF]

Annales Geophysicae, 2014
Oblique backscatter sounding is a powerful tool for detecting and monitoring the ionosphere continuously at a remote distance. High-frequency (HF) backscatter ionograms provide the amplitudes of backscatter signals with respect to group path or time ...
J. J. Zhao, C. Zhou, G. B. Yang, C. H. Jiang, S. S. Chang, P. Zhu, X. D. Gu, B. B. Ni, Z. Y. Zhao   +8 more
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The First Inventory of Rock Glaciers in the Zhetysu Alatau: The Aksu and Lepsy River Basins

Remote Sensing, 2022
While rock glaciers (RGs) are widespread in the Zhetysu Alatau mountain range of Tien Shan (Kazakhstan), they have not yet been systematically investigated.
Azamat Kaldybayev, Nurmakhambet Sydyk, Alena Yelisseyeva, Aibek Merekeyev, Serik Nurakynov, Kanat Zulpykharov, Gulnura Issanova, Yaning Chen   +7 more
doaj   +1 more source

Estimating Geomagnetically Induced Currents in High‐Voltage Power Lines for the Territory of Kazakhstan

Space Weather, 2023
Extreme solar events, such as powerful solar flares are accompanied by the release of strong solar disturbances, such as coronal mass ejections (CMEs). The impact of CMEs on the Earth's magnetosphere causes geomagnetic storms, which trigger geomagnetic ...
A. B. Andreyev, S. N. Mukasheva, V. I. Kapytin, O. I. Sokolova   +3 more
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Disturbances of Doppler Frequency Shift of Ionospheric Signal and of Telluric Current Caused by Atmospheric Waves from Explosive Eruption of Hunga Tonga Volcano on January 15, 2022

Atmosphere, 2023
After the explosive eruption of the Hunga Tonga volcano on 15 January 2022, disturbances were observed at a distance of about 12,000 km in Northern Tien Shan and regarded variations in the atmospheric pressure, in telluric current, and in the Doppler ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Vladimir Saveliev, Serik Nurakynov, Vladimir Ryabov, Valery Zhukov   +6 more
doaj   +1 more source

Ionosphere Influenced From Lower-Lying Atmospheric Regions

Frontiers in Astronomy and Space Sciences, 2021
The ionosphere represents part of the upper atmosphere. Its variability is observed on a wide-scale temporal range from minutes, or even shorter, up to scales of the solar cycle and secular variations of solar energy input.
Petra Koucká Knížová, Jan Laštovička, Daniel Kouba, Zbyšek Mošna, Katerina Podolská, Katerina Potužníková, Tereza Šindelářová, Jaroslav Chum, Jan Rusz   +8 more
doaj   +1 more source