Zobrazeno 1 - 10
of 20
pro vyhledávání: '"V. C. Roldugin"'
Publikováno v:
Annales Geophysicae, Vol 18, Pp 332-336 (2000)
Eight periods of relativistic electron precipitation (REP) with electron energies of more than 300 keV are identified from VLF data (10-14 kHz) monitored along the Aldra (Norway) - Apatity (Kola peninsula) radio trace. In these cases, anomalous io
Externí odkaz:
https://doaj.org/article/1bacbb0c79ad42159cc1012069e1414c
Publikováno v:
Annales Geophysicae, Vol 17, Pp 1293-1297 (1999)
The variations of the first mode of Schumann resonance are analyzed using data from Kola peninsula stations during the solar proton event of 6 November 1997. On this day the intensive flux of energetic protons on GOES-8 and the 10% increase of the
Externí odkaz:
https://doaj.org/article/e1f648a1ead04a4bbc67d39f97049a5c
Publikováno v:
Geomagnetism and Aeronomy. 58:325-331
Variations in the amplitude of the ordinary wave from a received signal on a partial reflection radar at a short-wave range on the Kola Peninsula during the appearance of noctilucent clouds on August 12, 2016, are examined. Noctilucent clouds are reg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::316cd2c4f3639665f39794040312b50f
https://doi.org/10.1134/s0016793218030143
https://doi.org/10.1134/s0016793218030143
Publikováno v:
Geomagnetism and Aeronomy. 55:41-50
Optical characteristics of large amplitude undulations (LAU) of diffuse aurorae observed by all-sky cameras at Kola Peninsula on December 28, 2010 were examined. Both interplanetary medium conditions and characteristics of magnetic activity before an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b76b6204002f9c83e6474d97cd87b84
https://doi.org/10.1134/s0016793215010132
https://doi.org/10.1134/s0016793215010132
Publikováno v:
Geomagnetism and Aeronomy. 54:773-779
The behavior of the Hα hydrogen emission at Barentsburg observatory during precipitation of high-energy solar protons and sudden impulse (SI) on January 22, 2012, was studied. The emission intensity was determined with a spectrometer, which gives th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92a9d99c3923f07c7a2d7307ba6bd23b
https://doi.org/10.1134/s0016793214060164
https://doi.org/10.1134/s0016793214060164
Publikováno v:
Journal of Geophysical Research: Space Physics. 118:74-81
[1] By observations at Lovozero station (64.3 N, 114.3 E CGM coordinates), we have investigated two events of auroral pulsations of Pc1–2 type with periods in the range 2.5–7 s accompanied by similar geomagnetic pulsations. Luminous variations in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95414328e3386c07c025c3f5e9a8c2fd
https://doi.org/10.1029/2012ja017861
https://doi.org/10.1029/2012ja017861
Autor:
V. C. Roldugin, A. V. Roldugin
Publikováno v:
Geomagnetism and Aeronomy. 50:606-615
Geomagnetic pulsations of the Pc4–5 type at the Barentsburg Observatory for December 2007 to January 2008 are compared with the auroral intensity variations based on the photometric records at the same observatory. In all cases, auroral pulsations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a44461ca212a2a8b8ef1524ba665492d
https://doi.org/10.1134/s0016793210050075
https://doi.org/10.1134/s0016793210050075
Publikováno v:
Geomagnetism and Aeronomy. 50:34-40
The results of the ground-based optical observations of sunlit auroras, performed at Lovozero and Apatity observatories on April 10 (event 1) and April 27, 2007(event 2), are presented. The observations were performed in the (OI) 557.7 nm emission, u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bb13e1ff16e9abf550afbc0382d85dd
https://doi.org/10.1134/s0016793210010044
https://doi.org/10.1134/s0016793210010044
Autor:
V. B. Belakhovsky, V. C. Roldugin
Publikováno v:
Geomagnetism and Aeronomy. 48:180-186
The negative and positive fronts of the IMF B z component arrived at intervals of 3 h during a strong magnetic storm of May 15, 2005. The occurrence of Pc5 pulsations at these three characteristic instants has been considered based on the WIND satell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3158102b07f8915924ba9a750f15a8e
https://doi.org/10.1134/s0016793208020072
https://doi.org/10.1134/s0016793208020072
Autor:
V. C. Roldugin, Kjell Henriksen
Publikováno v:
Geophysical Research Letters. 21:1783-1786
The long-term trend analysis of the total ozone data for the period 1973–1989 was made for three regions of the USSR. A common negative trend is explained by the eruptions of Fuego and El Chichon as one of two considered reasons, and comparison of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f09eb87f804655e03b9f65e1db56631b
https://doi.org/10.1029/94gl01353
https://doi.org/10.1029/94gl01353