GEM: A Conjugate Study of ULF Waves at the Cusp

由多个机构组成的美国全球变化研究计划(我们的地球变化研究计划，1991年成立的地球科学委员会)的一个组成部分是理解地球空间环境并对其进行建模。作为对美国全球变化研究计划的贡献的一部分，美国国家科学基金会大气科学部建立了一项新的研究计划-地球空间环境建模(GEM)，目的是支持对地球空间动力学和结构属性的基础研究，从而构建具有预测能力的全球地球空间模型。第一次GEM运动的主题是磁层边界、其外的磁鞘以及从边界通过磁层到电离层的连接。尖点区域是一个丰富的超低频波源，其频谱范围从近直流到1赫兹以上。这是一项研究共轭半球尖点站的超低频波谱的赠款，目的是研究这些地点的尖点的共轭性，并确定与尖点相关的波浪产生机制。

An integral component of the multi-agency U.S. Global Change Research Program (Our Changing Planet," Committee on Earth Sciences, 1991) is understanding and modeling the geospace environment. As part of its contribution to the U.S. Global Change Research Program, the National Science Foundation's Division of Atmospheric Sciences has established a new research initiative, Geospace Environment Modeling (GEM), with the goal of supporting basic research into the dynamical and structural properties of geospace, leading to the construction of a global geospace model with predictive capability. The subjects of the first GEM campaign are the magnetospheric boundary, the magnetosheath beyond it, and the connection from the boundary through the magnetosphere to the ionosphere. The cusp region is a rich source of ULF waves spanning the frequency spectrum from near dc to above 1Hz. This is a grant to study the ULF wave spectrum at cusp stations in conjugate hemisphere in order to investigate the conjugacy of the cusp at these sites and to identify wave generation mechanisms associated with the cusp.