A Study of Polar Cap Electric Potentials - a GEM Related Program

极帽电势的研究 - GEM 相关程序

• 批准号: 9014148
• 负责人: Daniel Weimer
• 金额: $ 10万
• 依托单位: University of Alaska Fairbanks Campus
• 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: 1991-01-01 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9014148&HistoricalAwards=false
• 关键词: Study; Polar; Cap; Electric; Potentials

The polar cap potential is a very important quantity in the coupling between the solar wind and the magnetosphere. It is a quantity which gives a direct measurement of plasma flow in the magnetosphere and can also be related to the energy input into this important region of the earth's geospace environment. In the past, there have only been a few studies of the correlation between the polar cap potential and the solar wind. This grant is for the following four tasks (1) assemble a large data set of polar cap electric potentials from instruments on the two Dynamic Explorer satellites, (2) determine how the solar wind and interplanetary magnetic field (IMF) control the polar cap potential, (3) investigate the relationship between the size of the polar cap and the total potential drop, and (4) use AE indices in combination with the polar cap potential measurements to find how the potential behaves during magnetospheric substorms.

极冠势是地球物理学中一个非常重要的量 太阳风和磁层之间的耦合。 这是一个 直接测量等离子体流量的量 磁层，也可以与能量输入到 地球空间环境的这一重要区域。 在 在过去，只有少数研究的相关性 极冠电位和太阳风之间的联系 这笔赠款 是为了以下四个任务（1）组装一个大的数据集， 极冠电位从仪器上的两个动态 探索者卫星，（2）确定太阳风和 行星际磁场（IMF）控制极冠 （3）研究大小关系， 极帽和总电位降;（4）使用AE 与极冠电位测量相结合的指数 来发现磁层中的电势是如何变化的 亚暴