Future Problems of Geomagnetic Conjugate Observations

Abstract

Observations of geophysical phenomena at geomaenetic conjugatepair stations are important for studying the physical processes that occur in the magnetosphere and yield the relevant upper atmospheric phenomena. Significant and feasible conjugate experiments in the near future are, 1) Observations of several "standard" geophysical phenomena at the network of stations distributed widely in latitude and longitude around the conjugate area in both the northern and southern hemispheres, 2) Coordinated observations by using rockets, low-altitude polar-orbiting satellites, geostationary satellites and station nets on the ground, 3) Active experiments, e. g., VLF wave injectioninto the magnetosphere from Mizuho Station in the auroral zone, and 4) Magnetic field line tracing by means of barium plasma injection.