Výsledky vyhledávání - "D. S. Kotova"

Comparison оf Shooting Method and Variational Approach for Two-Point Ionospheric Ray Tracing

Autor: I. A. Nosikov, M. V. Klimenko, D. S. Kotova, V. E. Zakharov

Publikováno v: Bulletin of the Russian Academy of Sciences: Physics. 85:262-267

A comparative analysis of two methods for two-point ionospheric ray tracing problem is presented. For the chosen model conditions, the accuracy and computing time parameters are compared using the shooting method and the variational approach.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59fb9454b625fa3e751797932b025433
https://doi.org/10.3103/s1062873821030114

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Complex of Radiophysical, Geomagnetic, and Meteorological Observations (IZMIRAN), Kaliningrad Branch

Autor: G. A. Yakimova, Irk Shagimuratov, D. S. Kotova, O. P. Borchevkina, Fedor Bessarab, N. A. Koren’kova, I. V. Karpov, I. I. Efishov, Maxim Klimenko, V. S. Leshchenko, A. V. Radievskii, V. I. Vlasov, I. A. Nosikov, M. I. Karpov, V. L. Lisina

Publikováno v: Russian Journal of Physical Chemistry B. 14:883-891

Since 1964, the Kaliningrad branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences (IZMIRAN) has been conducting regular observations of the parameters of the lower atmosphere, ionosph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2923965f956230ce3fee0a6048df4ed7
https://doi.org/10.1134/s1990793120050176

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Formation of Ionospheric Irregularities in the East Siberian Region during the Geomagnetic Storm of May 27–28, 2017

Autor: A. Yu. Pashin, Alla Suvorova, D. S. Kotova, Alexei Dmitriev, N. V. Chirik, Vladimir B. Ovodenko, D. V. Chugunin, Vladimir V. Klimenko, Irina Zakharenkova, R. A. Rakhmatulin, Maxim Klimenko, M. Uspensky, I. V. Tyutin, K.G. Ratovsky, Alexander Chernyshov

Publikováno v: Russian Journal of Physical Chemistry B. 14:377-389

Results of studying different-scale ionospheric irregularities on the basis of multi-instrumental data, obtained in the East Siberian region of Russia during the geomagnetic storm of May 27–28, 2017, are presented. Spatial inhomogeneities of electr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::192941a1fede2c5e5f158dea054b3a2c
https://doi.org/10.1134/s1990793120020232

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Global Point-to-Point Ionospheric Ray Tracing Using the Direct Variational Method

Autor: D. S. Kotova, I. A. Nosikov, Maksim Klimenko, Pavel F. Bessarab

Publikováno v: 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science.

Global optimization of phase distance functional is a promising approach to the multipath problem of the point-to-point ionospheric ray tracing. The approach is involves systematic algorithm where all relevant rays between the fixed points are found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::805eeffa49e190728a67a00c008d7369
https://doi.org/10.23919/ursigass49373.2020.9232035

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Spatial and Temporal Evolution of Different‐Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

Autor: A. V. Oinats, A. V. Nikolaev, Konstantin Ratovsky, Brian J. Anderson, Irina Zakharenkova, John C. Coxon, Alexander Chernyshov, Vladimir B. Ovodenko, Denis Rogov, D. V. Chugunin, I. V. Tyutin, Maksim Klimenko, P. A. Budnikov, D. S. Kotova

We present a multi‐instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate‐to‐strong geomagnetic storm on 27–28 Ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::031e0ab0184d87591bb7488f196b3899

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Variability of ionospheric parameters by the Swarm satellites for different solar activity

Autor: Yaqi Jin, D. S. Kotova, Wojciech Jacek Miloch

The use of satellite data allows us to study the variability of ionospheric plasma parameters globally without references to ground stations or receivers in different regions of the Earth. The Swarm mission, which was launched in 2014 and is still op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4776eb537f7fd8fce9a47b2f2b758d77
https://doi.org/10.5194/egusphere-egu2020-20318

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Ionospheric Plasma Irregularities Based on In Situ Measurements From the Swarm Satellites

Autor: Andres Spicher, D. S. Kotova, Wojciech Jacek Miloch, Chao Xiong, Lasse Boy Novock Clausen, Guram Kervalishvili, Steffen Mattias Brask, Claudia Stolle, Yaqi Jin

Publikováno v: Journal of Geophysical Research: Space Physics

In this study, we present global climatological distributions of ionospheric plasma irregularities based on measurements by the Swarm satellites. These first global statistics obtained by direct, in situ measurements of plasma variations with Swarm c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51d9309e0823d0edff91a43d128d968
http://hdl.handle.net/10852/83802

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After-effects of geomagnetic storms: statistical analysis and theoretical explanation

Autor: N. A. Koren’kova, Konstantin Ratovsky, Vladimir V. Klimenko, Maksim Klimenko, Nikolay Chirik, D. S. Kotova

Publikováno v: Solnechno-Zemnaya Fizika. 4:32-42

Our previous studies have shown the presence of daytime positive electron density disturb-ances during several days after the start of the recovery phase. The aim of this paper is to study after-effects of geomagnetic storms (after-storm effects), i.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28d0fa7dfcf0c736712f3d8bd09040b9
https://doi.org/10.12737/szf-44201804

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Correction of IRI-Plas and NeQuick Empirical Ionospheric Models at High Latitudes Using Data from the Remote Receivers of Global Navigation Satellite System Signals

Autor: A. A. Gusakov, A.A. Mylnikova, Yu. V. Yasyukevich, Vladimir B. Ovodenko, A. E. Kozlovsky, D. S. Kotova, Maxim Klimenko

Publikováno v: Russian Journal of Physical Chemistry B. 12:776-781

Correction of ionospheric models using experimental data is a current problem in accounting for ionospheric effects on the operation of radio engineering systems. In this paper, two approaches for correcting International Reference Ionosphere (IRI)-P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d016f9b3355f3bcd14f43157ce53deb
https://doi.org/10.1134/s1990793118040127

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Influence of geomagnetic storms of September 26–30, 2011, on the ionosphere and HF radiowave propagation. II. radiowave propagation

Autor: V. E. Zakharov, Maxim Klimenko, D. S. Kotova, Vladimir V. Klimenko

Publikováno v: Geomagnetism and Aeronomy. 57:288-300

A study of HF wave propagation in the three-dimensional inhomogeneous ionosphere has been carried out in an approximation of geometrical optics. The three-dimensional medium of radio wave propagation is considered to be inhomogeneous, absorbing, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43534812a0c581768ec372a531f09abd
https://doi.org/10.1134/s0016793217030100

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