Relationship between Indexes of Geomagnetic Activity on the Main Phase of a Magnetic Storm for Various Types of Solar Wind
Abstract
In this paper the relationship between the speed of a magnetic storm ׀∆Dst׀/∆T and average value of AE index (AEave) for the main phase (∆T) is investigated. Magnetic storms initiated by high-speed streams CIR and interplanetary coronal mass ejections ICME, including magnetic clouds and Ejecta (36 events) are considered. It is shown, that for CIR events amplification of auroral activity (AEave) increase with the increase of speed of a magnetic storm development. For ICME events a linear relation between AEave and the speed of development of a magnetic storm is absent (r<0,5). The analysis of AE index for the main phase of a magnetic storm depending on electric field of a solar wind has shown that for CIR events AEave value is correlated with the average value of an electric field. For ICME events AEave value weakly depends on the electric field of the solar wind.
About the Authors
Roman Nikolaevich Boroev
Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS
Russian Federation
Russian Federation
Mikhail Semenovich Vasiliev
Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS
Russian Federation
Russian Federation
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Review
For citations:
Boroev R.N., Vasiliev M.S. Relationship between Indexes of Geomagnetic Activity on the Main Phase of a Magnetic Storm for Various Types of Solar Wind. Arctic and Subarctic Natural Resources. 2017;22(1):71-74. (In Russ.)
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