Quiet-Time Intensifications Along the Poleward Auroral Boundary Near Midnight

摘要

Radar and optical measurements from Sondrestrom are combined with satellite andGoose Bay data in a study of the poleward edge of the nightside auroral oval during a quiet period. The B(sub y) and B(sub z) components of the interplanetary magnetic field were close to zero, and the B(sub x) component was approximately 8 nT for more than 24 hours. On a large scale, the convection and precipitation patterns remained almost constant during this period; on a small scale, however,