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Radio Physics and Radio Astronomy

ISSN Druckformat: 2152-274X
ISSN Online: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v2.i3.20
pages 205-210

ASSOCIATION BETWEEN VARIATIONS OF SOLAR WIND PARAMETERS AND GEOMAGNETIC ACTIVITY INDEX Ap IN 2003 - 2005

Igor Savel'evich Fal'kovich
Institute of Radio Astronomy, National Academy Sciences of Ukraine
M. R. Olyak
Institute of Radio Astronomy, National Academy of Sciences of Ukraine
Nikolai Nikolaevich Kalinichenko
Institute of Radio Astronomy, National Academy Sciences of Ukraine
I. N. Bubnov
Institute of Radio Astronomy, National Academy of Sciences of Ukraine

ABSTRAKT

A geomagnetic index Ap has been compared with the solar wind parameters obtained from 2003-2005 observations. Some characteristic features of the solar wind geoeffective disturbances at the 23rd solar activity cycle decline are determined. In particular, the speed of the solar wind geoeffective disturbances during the observation periods is shown to be on the average lower, and the power index of electron density fluctuations higher than that for the quasistationary high-speed solar wind.


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