U.S.-Japan Cooperative Research: Upper Atmosphere Studies with the MU Radar

该奖项将支持为期两年的美国-日本合作科学 威廉奥利弗教授之间的项目，系 电气、计算机和系统工程与中心 波士顿大学空间物理学教授， 京都大学无线电大气科学中心。 项目 涉及研究大规模的动力系统在上层- 大气层和电离层与MU（中高层 和电离层探测仪链， 在日本的咖啡馆。 该研究将试图验证 三种不同流通的存在与区分 理论表明存在的系统：“正常”循环 系统驱动的太阳光子加热在太阳下的点和 “扰动”环流系统由极光驱动， 太阳风扰动期间的赤道地区 地球的磁场环境 在1992年夏天，调查人员将试图核实 这些系统的存在，确定其边界， 观察它们在地球上的纬度扩张和收缩， 扰动周期 在1993年夏天，他们将试图 将建立的电离层漂移方向和梯度 通过这些循环到等离子体不稳定性产生的理论， 看看这些条件是否能为产生 MU雷达发现的显著异常， 电离层

This award will support a two-year U.S.-Japan cooperative science project between Professor William Oliver, Department of Electrical, Computer, and Systems Engineering and Center for Space Physics, Boston University, and Professor Shoichiro Fukao, Radio Atmospheric Science Center, Kyoto University. The project involves study of large-scale dynamical systems in the upper- atmosphere and ionosphere with MU (Middle and Upper atmosphere) radar at Shigaraki and the chain of ionosondes located at Japanese longitudes. The study will attempt to verify the existence of and distinguish between three different circulation systems indicated to exist by theory: the "normal" circulation system driven by solar photon heating at the sub-solar point and the "disturbance" circulation systems driven from the auroral and equatorial regions during periods of solar-wind disturbance of the earth's magnetic environment. During the summer of 1992 the investigators will attempt to verify the existence of these systems, identify their boundaries, and observe their latitudinal expansions and contractions during disturbance periods. During the summer of 1993 they will attempt to relate the ionospheric drift directions and gradients established by these circulations to theories of plasma instability generation to see if these conditions can provide seeding for the generation of the remarkable irregularities discovered by the MU radar in the ionosphere.