GEM: Turbulent Structure of the Magnetopause Current Layer

GEM：磁层顶电流层的湍流结构

• 批准号: 9112342
• 负责人: James Drake
• 金额: $ 10.5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9112342&HistoricalAwards=false
• 关键词: GEM; Turbulent; Structure; Magnetopause; Current

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 magnetopause is the boundary between the shocked solar wind plasma in the magnetosheath and magnetospheric plasma. Magnetic reconnection and anomalous transport at the magnetopause are key mechanisms for the transport of solar wind plasma into the magnetosphere, whose understanding is a priority of the Geospace Environment Modeling (GEM) Program. The goal of this grant is to develop a model of turbulence fluctuations and transport in the magnetopause current layer which can be coupled with simulations of collisionless reconnection and compared with observations.

多机构美国全球变化战略的一个组成部分 研究计划（我们不断变化的星球，”地球委员会 Sciences，1991）正在理解和模拟地球空间 环境 作为其对美国全球贡献的一部分， 美国国家科学基金会的变化研究计划 大气科学部建立了一个新的研究 地球空间环境建模倡议，目标是 支持基础研究的动力和结构 地球空间的性质，导致全球建设 具有预测能力的地理空间模型。 第一次创业板运动的主题是 磁层边界，磁鞘超出它，和 从边界到磁层的连接 电离层 磁层顶是受冲击的 磁鞘中的太阳风等离子体和磁层等离子体。 磁层顶的磁重联和异常输运 是将太阳风等离子体输送到 磁层，对磁层的了解是地球物理学的一个优先事项。 地球空间环境建模（GEM）计划。 这项资助的目标是开发一个湍流模型 磁层顶电流层的涨落和输运 这可以与无碰撞的模拟相结合， 重新连接并与观察结果进行比较。