数値シミュレーションによる地球・宇宙環境変動予測

Abstract

In order to under stand complete pictures of the energy, momentum, and molecular transfer in the atmospheric regions, dynamical features of the whole atmosphere, and near space environment, we have developed a new general circulation model(GCM) which covers all the atmospheric regions. Numerical simulations with this GCM have shown new aspects of the upper atmosphere: e.g., wavy structures and day-to-day variations of the thermosphere, generation and propagation of disturbances in the polar thermosphere due to the auroral activity. We report on some simulation results, possibility of space weather prediction, and some ongoing projects for studying the Earth' and space environments.