부산대학교 도서관

Outline of the Global Aurora Dynamics Campaign, carried out from December 20, 1985 to February 3, 1986, is briefly described. Some of the initial results are reviewed in connection with other campaign papers of this issue. Importance and effectiveness of multi-station network observation are emphasized for obtaining spatio-temporal information of the upper atmosphere phenomena such as auroral activities and magnetic field perturbations. The network observation is useful especially for studying the global propagation of ULF waves, global dynamics of auroras, and consistent relationships among electric currents, conductivity distributions and electric fields. It is shown that the multi-station network is also greatly efficient to increase the possibilities of studying the relationships between in situ measurements of the magnetospheric plasma parameters by satellites and ground observations of precipitation particles and field variations along the common magnetic field lines.