A numerical simulation study of solar wind disturbances responsible for geomagnetic and auroral storms

Details A numerical simulation study of solar wind disturbances responsible for geomagnetic and auroral storms A numerical simulation study of solar wind disturbances responsible for geomagnetic and auroral storms

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aufg.rept.....a&link_type=abstract

Final Report, 11 Dec. 1980 - 11 Nov. 1983 Alaska Univ., Fairbanks. Geophysical Inst.

Other

Geomagnetism, Magnetic Storms, Shock Wave Propagation, Solar Flares, Sunspots, Buoyancy, Disturbances, Magnetohydrodynamics, Mathematical Models, Solar Wind, Time Dependence

Scientific paper

During the last 12 months, we have made significant progress in three areas, (1) the simulation of propagation of flare-generated shock waves; (2) dynamo processes associated with solar flares; and (3) the simulation of sunspot formation. During the next 12 months, we plan to extend our studies in the same three areas. Some of the highlights and the future plans are described. Specifically, we have constructed a code to deal with the propagation of shock waves generated by six successive flares and plan to study several observed events on the basis of the code. We have developed a dynamo theory of the solar flares and plan to simulate time-dependent models by a MHD simulation method. We plan to examine observed velocity fields around sunspots in connection with our dynamo theory of solar flares. It is also our plan to extend our simulation study of sunspots by including magnetic buoyancy and other factors. Topics also include a solar wind study by the kinematic simulation method, and a study of the relationship between sunspot fields and transient IMF (Intermediate Magnetic Field) variations.

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