GEM: Particle Distribution Signatures of Global Magnetopause Structure

多机构美国全球变化研究项目（我们不断变化的星球，地球科学委员会，1991年）的一个组成部分是理解和模拟地球空间环境。作为对美国全球变化研究计划的一部分，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），其目标是支持对地球空间动力学和结构特性的基础研究。从而构建具有预测能力的全球地球空间模型。第一个GEM活动的主题是磁层边界、磁层边界之外的磁鞘，以及从磁层边界到电离层的连接。这笔拨款是为了支持在日侧磁层顶附近和内部建立电子和离子分布函数模型，以确定磁层顶电场和磁场的关键粒子特征。为这个项目准备的代码将提供给GEM计划的全球循环模型。

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. This grant is for support to model electron and ion distribution functions near and within the dayside magnetopause in order to identify key particle signatures of the magnetopause electric and magnetic fields. The codes prepared for this project will be made available for inclusion into the GEM program's Global Circulation Model.