Zobrazeno 1 - 10
of 21
pro vyhledávání: '"A. D. Legen'ka"'
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 1, Pp 1-5 (2017)
The F2-layer critical frequency (foF2) data from several ionosondes are employed to study the long-distance effect of the M8.8 Chile Earthquake of February 27, 2010, on the F2 layer. Significant perturbations of the peak F2-layer electron density h
Externí odkaz:
https://doaj.org/article/05a36cc0840a4a86ab779ca874d5f280
Publikováno v:
Geomagnetism and Aeronomy. 61:S36-S47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be1e10d0807de03b8a3f63355ac13308
https://doi.org/10.1134/s0016793222010108
https://doi.org/10.1134/s0016793222010108
Autor:
L. P. Korsunova, A. D. Legen’ka
Publikováno v:
Geomagnetism and Aeronomy. 61:896-904
Abstract The changes in two characteristics of the sporadic Е layer are studied for a pair of stations: the probability of the occurrence PEs and the limiting frequency of the ordinary wave of the sporadic E layer of the ionosphere foEs during a 10-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d786aaaeb35b9d6eb84260f2bce9c671
https://doi.org/10.1134/s0016793221050066
https://doi.org/10.1134/s0016793221050066
Publikováno v:
Geomagnetism and Aeronomy. 61:559-564
The penetration of the nighttime ionosphere by electric fields in the African zone of thunderstorm activity is studied based on calculations. These fields are caused by both the Coulomb charges of thunderclouds and the electric current generated by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4701557a76db9fdc7c6b6b44a7a34a11
https://doi.org/10.1134/s001679322104006x
https://doi.org/10.1134/s001679322104006x
Autor:
A. D. Legen’ka, V. V. Khegai
Publikováno v:
Geomagnetism and Aeronomy. 60:577-585
Ionosonde measurements of the critical frequency of the ionospheric F2 layer (foF2) at Wakkanai station (Japan) are analyzed with the method of superposed epochs. The station is situated in a region of high seismicity. Winter periods with low sunspot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f436f78007e788c91009bd353587b24a
https://doi.org/10.1134/s0016793220050126
https://doi.org/10.1134/s0016793220050126
Publikováno v:
Geomagnetism and Aeronomy. 59:628-637
The paper analyzes the measurement data of the critical frequency (foF2) of the regular ionospheric F2-layer at a number of ground based stations of the vertical sounding of the ionosphere in order to detect disturbances in the ionosphere that follow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39082babba8d8b5683d08de0b7f5c41b
https://doi.org/10.1134/s0016793219050104
https://doi.org/10.1134/s0016793219050104
Publikováno v:
Geomagnetism and Aeronomy. 58:686-692
The paper analyzes the data of manual ionograms processing of hourly measurements of the critical frequency foF2 of the F2 ionospheric layer at the Wakkanai ionospheric vertical sounding station (Japan) in a geomagnetically quiet environment before a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b76e3578a5df093ed159bef85433ca
https://doi.org/10.1134/s0016793218050110
https://doi.org/10.1134/s0016793218050110
Publikováno v:
Geomagnetism and Aeronomy. 56:331-341
Based on data from ground-based vertical sounding stations, the behaviors of the ionosphere F region before a strong M 6.8 earthquake off the coast of Hokkaido, Japan, and during the moderate magnetic storm before this earthquake are compared. It was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb09d3f18941981c464f75482fd50b0a
https://doi.org/10.1134/s0016793216030129
https://doi.org/10.1134/s0016793216030129
Publikováno v:
Geomagnetism and Aeronomy. 54:82-86
A study of variations in the critical frequency of the F2 layer (foF2) prior to a shallow-focus eartquake with a magnitude M = 5.1 which occurred in Spain on May 11, 2011, is carried out. The obtained results show that a positive disturbance in the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ee5e2b33be9dd5d22e6f1e7ae58e883
https://doi.org/10.1134/s0016793214010058
https://doi.org/10.1134/s0016793214010058
Publikováno v:
Geomagnetism and Aeronomy. 53:529-533
Based on data from the Japanese Kokubunji and Wakkanai stations of vertical sounding of the ionosphere, the variations in the foF2 critical frequency prior to the strong earthquakes of March 9 and 11, 2011 (M 7.2 and 9.0, respectively), are analyzed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e9d5e770cb60ab8ac7ff4d4d0f8f115
https://doi.org/10.1134/s0016793213040099
https://doi.org/10.1134/s0016793213040099