Joint Data Analysis of the Dynamics Explorer Satellite Observations

该项目的重要目标之一是从戈达德太空飞行中心向京都大学转移动力学探索者（DE） 1和2磁力计观测的全部数据集。传输数千兆数量级的大量数据需要仔细的规划和协调。京都大学数据库的建设必须谨慎，以使后续的数据分析能够高效率地进行，并使系统与戈达德的系统兼容，以最大限度地发挥联合分析工作的效益。为了研究磁层-电离层耦合过程，除了磁场数据外，还需要电场和等离子体数据以及极光图像。在这方面，已经获得了相关DE首席调查员的合作。目前已经完成了高时间分辨率DE-2磁场和电场数据的传输。DE-1磁力计数据的传输由于戈达德数据缩减的延迟而延迟；不过，数据转移预计将于1992年底完成。A：正在为将来传输一些等离子体数据做准备。在数据分析中，对(a)场向电流区域的磁场扰动与电场之间的关系和(b)日侧尖峰附近的场向电流的研究被给予了高度的优先权。其他研究课题包括，例如：在极端磁静止期间的场向电流、等离子体对流和电子沉淀，风暴突然开始激发的环形驻波，以及2区场向电流与夜间电子和离子沉淀之间的空间关系

One of the important objectives of this project is to transfer from the Goddard Space Flight Center to the Kyoto University the entire data set of the Dynamics Explorer (DE) 1 and 2 magnetometer observations. The transfer of the large volume of data on the order of several gigabits requires a careful planning and coordination. The construction of database at the Kyoto University had to be made with care so that the subsequent data analyses can be conducted with high efficiency and that the system would be compatible with that at Goddard to maximize the benefit of the joint analysis effort. For investigations of the magnetosphere-ionosphere coupling processes the electric field and plasma data and auroral images are often needed in addition to the magnetic field data. In this regard, cooperation from the relevant DE Principal Investigators has been obtained. Thus far the high time resolution DE-2 magnetic and electric field data have been transferred. The transfer of the DE-1 magnetometer data is being delayed due to a delay in the data reduction at Goddard ; however, the data transfer is expected to be completed by the end of 1992. A Preparations is being made for transferring some of the plasma data in the future.For the data analysis the investigations of (a) the relationship between the magnetic field perturbations and the electric field in the field-aligned current regions and (b) the field-aligned current near the dayside cusp have been given a high priority. Other subjects investigated include, for instance : the field-aligned currents, plasma convection, and electron precipitation during periods of extreme magnetic quiescence, toroidal standing waves excited by a storm sudden commencement, and spatial relationships between region 2 field-aligned currents and electron and ion precipitation in the evening sector