A Study of Auroral & Polar Magnetic Substorms
Abstract
This study was an attempt to reproduce the field variations observed during a particular polar magnetic substorm by a simple model current system. A line current model consisting of flow down field lines, along auroral arcs and back out along field lines was used. A computer program utilizing a matrix form of the Biot-Savart law was written to calculate the effect of the model current system. Parameters of the system were adjusted to give a best fit. The westward electrojet was found to flow along or slightly poleward of the auroral forms. The eastward electrojet was found to flow slightly equatorward of the discrete aurora. Agreement of calculated and observed field variations was generally good.
Description
Program year: 1975/1976Digitized from print original stored in HDR
Subject
polar magnetic substormfield variations
field lines
auroral arcs
Biot-Savart law
electrojet
discrete aurora
Citation
Porter, Jason G. (1976). A Study of Auroral & Polar Magnetic Substorms. University Undergraduate Fellow. Available electronically from https : / /hdl .handle .net /1969 .1 /CAPSTONE -HongAnhTt _1979.