منابع مشابه
The influence of solar wind turbulence on geomagnetic activity
The importance of space weather and its forecasting is growing as interest in studying geoeffective processes in the Sun – solar wind – magnetosphere – ionosphere coupled system is increasing. In this paper higher order statistical moments of interplanetary magnetic field and geomagnetic SYM-H index fluctuations are compared. The proper description of fluctuations in the solar wind can elucidat...
متن کاملGeomagnetic storms driven by ICME- and CIR-dominated solar wind
[1] The interaction of the solar wind and the Earth’s magnetosphere is complex and the phenomenology of the interaction is very different for solar wind dominated by interplanetary coronal mass ejections (ICMEs) compared to solar wind dominated by corotating interaction regions (CIRs). We perform a superposed epoch study of the effects of ICMEand CIR-dominated solar wind upon the storm-time pla...
متن کاملSolar Wind Anr Interplanetary Magnetic Field
1. Basic Concepts 2. Sun and Heliosphere at Times of Solar Activity Minimum 2.1. Typical Solar Wind and its Sources 2.2. The Ballerina Model 2.3. Solar Wind Stream Structure 2.4. The Two Basic States of the Solar Wind 2.4.1. Differences 2.4.2. Communities 2.5. Solar Wind Acceleration and Expansion 2.6. Solar Wind Streams and Their Interactions 2.6.1. Corotating Interaction Regions in the Inner ...
متن کاملThe 13.5-day periodicity in the Sun, solar wind, and geomagnetic activity: The last three solar cycles
We make a detailed analysis of the 13.5-day periodicity of the solar chromosphere, the nearEarth solar wind, interplanetary magnetic field and geomagnetic activity during the last three solar cycles. The 13.5-day periodicity is a real quasi-periodicity whose amplitude varies sizably with time, attaining occasionally values larger than, for example, the amplitude of the 27-day periodicity. In ca...
متن کاملLong-term Geomagnetic Indices and their Use in Inferring Solar Wind Parameters in the Past
We discuss three new geomagnetic indices [the Inter-Hour Variability (IHV), Svalgaard and Cliver (2007); the Inter-Diurnal Variability (IDV), Svalgaard and Cliver, 2005; and the Polar-Cap Potential (PCP) Index, Le Sager and Svalgaard (2004)], that are derivable from data available for a century or more. Each of these indices responds directly to either the solar wind magnetic field strength (B)...
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ژورنال
عنوان ژورنال: Reviews of Geophysics
سال: 1964
ISSN: 8755-1209
DOI: 10.1029/rg002i002p00335