Determination of the Global Electrodynamics of the Aurora during Northward Interplanetary Magnetic Field Utilizing Numerical Modeling and Multiple-Satellite Data

利用数值模型和多卫星数据确定向北行星际磁场期间极光的整体电动力学

• 批准号: 9814144
• 负责人: Judy Cumnock
• 金额: $ 18万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-02-01 至 2002-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9814144&HistoricalAwards=false
• 关键词: Determination; Global; Electrodynamics; Aurora; during

This proposal is designed to study the electrodynamic coupling between the ionosphere and the magnetosphere at high latitudes. In particular, it will examine the coupling during periods when the interplanetary magnetic field (IMF) is northward. The dynamics of the ionospheric convection and the variation in the field-aligned electric currents (FACs) will be examined as the IMF By component varies. Images from the POLAR satellite will be combined with particle measurements from POLAR as well as particle and magnetic field measurements from the DMSP satellites. These data sets will be used to determine the field-aligned currents and the ionospheric conductivity. The information on the currents and ionospheric convection can then be used to determine the way energy is coupled into the ionosphere from the magnetosphere.

这项建议旨在研究高纬度电离层和磁层之间的电动耦合。 特别是，它将检查期间的耦合时，行星际磁场（IMF）是北向。 随着IMF By分量的变化，将研究电离层对流的动态和场向电流（FACs）的变化。 来自POLAR卫星的图像将与来自POLAR的粒子测量以及来自DMSP卫星的粒子和磁场测量相结合。 这些数据集将用于确定场向电流和电离层电导率。 关于电流和电离层对流的信息可以用来确定能量从磁层耦合到电离层的方式。