A Study of Geomagnetic Storms and the Polar Caps

这笔赠款支持磁层风暴的研究。 具体包括：（1）磁暴主相的不对称发展；（2）基于DE卫星数据和地面磁数据的亚暴流系统的增长和衰减；（3）行星际扰动事件的建模。 在项目的初始阶段，选择了以下主题； (a) 主相的不对称发展，(b) 次暴流系统的增长和衰减，(c) 减去极流系统产生的地磁扰动场，(d) 高能中性原子和主相的不对称性，(e) 输入输出关系，(f) 行星际扰动事件和相关风暴的建模，(g) 极帽现象。 该项目旨在实现两个额外目的：（1）培训能够很好地理解地面数据的磁层物理学家；（2）通过将磁层扰动视为日地物理学的一个组成部分来促进日地物理学（而不是太阳和陆地物理学）。

This grant supports a study of magnetospheric storms. Specifically, it covers: (1) the asymmetric development of the main phase of magnetic storms, (2) the growth and decay of the substorm current system on the basis of DE satellite data and ground-based magnetic data and (3) modelling of interplanetary disturbance events. During the initial phase of the project, the following subjects have been chosen; (a) the asymmetric development of the main phase, (b) the growth and decay of the substorm current system, (c) subtraction of the geomagnetic disturbance fields produced by the polar current system, (d) energetic neutral atoms and the asymmetry of the main phase, (e) the input-output relationship, (f) modelling of interplanetary disturbance events and the associated storms and (g) the polar cap phenomena. The project is designed to fulfill two additional purposes: (1) training magnetospheric physicists who can well understand ground-based data and (2) promote solar-terrestrial physics (rather than solar and terrestrial physics) by considering magnetospheric disturbances as an integral part of solar- terrestrial physics.