Zobrazeno 1 - 10
of 113
pro vyhledávání: '"V. Safargaleev"'
Publikováno v:
Annales Geophysicae, Vol 38, Pp 901-918 (2020)
Comprehensive analysis of a moderate 600 nT substorm was performed using simultaneous optical observations inside the auroral oval and in the polar cap, combined with data from satellites, radars, and ground magnetometers. The onset took place near
Externí odkaz:
https://doaj.org/article/9fd14251d33d42759c2001cc62fc1f75
Autor:
V. V. Safargaleev
Publikováno v:
Geomagnetism and Aeronomy. 62:694-703
Abstract The propagation of solar wind inhomogeneities through the transition region between the bow shock front and the daytime magnetopause is an important link in the chain of solar-terrestrial connections. We analyzed a unique situation when two
Publikováno v:
Annales Geophysicae, Vol 38, Pp 901-918 (2020)
Comprehensive analysis of a moderate 600 nT substorm was performed using simultaneous optical observations inside the auroral oval and in the polar cap, combined with data from satellites, radars, and ground magnetometers. The onset took place near
Publikováno v:
Annales Geophysicae, Vol 28, Pp 247-265 (2010)
We have examined several cases of magnetosphere compression by solar wind pressure pulses using a set of instruments located in the noon sector of auroral zone. We have found that the increase in riometric absorption (sudden commencement absorptio
Externí odkaz:
https://doaj.org/article/442d5442941c487ebd16a8e9cb706abd
Autor:
V. Safargaleev, A. Kozlovsky, T. Sergienko, T. K. Yeoman, M. Uspensky, D. M. Wright, H. Nilsson, T. Turunen, A. Kotikov
Publikováno v:
Annales Geophysicae, Vol 26, Pp 517-531 (2008)
We present a multi-instrument study of the ionospheric response to a northward turning of the IMF. The observations were made in the near-noon (11:00 MLT) sector on Svalbard (at 75° MLAT). The data set includes auroral observations, ionospheric f
Externí odkaz:
https://doaj.org/article/5fac45cb954647a8b5c94d9a2c70ed4e
Publikováno v:
Annales Geophysicae, Vol 23, Pp 1821-1838 (2005)
We present here the results of multi-instrument observations of auroral torch and Ps6 magnetic pulsations, which are assumed to be the magnetic signature of the spatially periodic optical auroras known as omega bands. Data from TV and ASC cameras
Externí odkaz:
https://doaj.org/article/b3cda158ac924d01b476bd8088d964c5
Publikováno v:
Annales Geophysicae, Vol 23, Pp 509-521 (2005)
Global ultraviolet auroral images from the IMAGE satellite were used to investigate the dynamics of the dayside auroral oval responding to a sudden impulse (SI) in the solar wind pressure. At the same time, the TV all-sky camera and the EISCAT rad
Externí odkaz:
https://doaj.org/article/0331b422863a424491d79962dff29c74
Publikováno v:
Annales Geophysicae, Vol 22, Pp 2997-3008 (2004)
Induction magnetometer observations of dayside Pc1 activity at Barentsburg (BAB, Spitsbergen archipelago, 78.05°N, 14.12°E) are combined with data from two magnetometers located in Scandinavia and the Kola peninsula. Seven events with very large
Externí odkaz:
https://doaj.org/article/447f05f8e0f04e39900d11984067dd81
Publikováno v:
Annales Geophysicae, Vol 21, Pp 2303-2314 (2003)
On 7 December 2000, TV ASC camera in Barentsburg (Svalbard) observed pre-noon (at 09:00–10:00 MLT) rayed auroral arcs, which occurred at the pole-ward edge of the auroral oval after an IMF transition from By -dominated (By = + 8.8, Bz = + 4.3
Externí odkaz:
https://doaj.org/article/966499c1ac954514bfe54d7b5291c399
Publikováno v:
Annales Geophysicae, Vol 21, Pp 1793-1805 (2003)
We used the TV auroral observations in Barentsburg (78.05° N 14.12° E) in Spitsbergen archipelago, together with the data of the CUTLASS HF radars and the POLAR satellite images to study azimuthal (in the east-west direction) expansion of the
Externí odkaz:
https://doaj.org/article/736c59e1160b456fb93f2f020dbabf25