Magnetospheric States and State Transitions

磁层状态和状态转变

• 批准号: 9729183
• 负责人: Patrick Newell
• 金额: $ 23.95万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-15 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9729183&HistoricalAwards=false
• 关键词: Magnetospheric; States; State; Transitions

The proposal is to investigate the DMSP satellite database of particle precipitation during a series of magnetospheric state transitions. State transitions will include the magnetospheric response to changes in IMF By and Bz components, precursors and responses to substorm onset, and states of flux tube refilling. These state changes will be investigated using state variables determines from DMSP particle data. Such state variables include the ion isotropy boundary and polar cap boundary - from which can be estimated the polar cap area. The database includes over 356,000 nightside crossings which will be investigated statistically, sorted according to substorm phase.

该提案旨在研究一系列磁层状态转变期间粒子降水的 DMSP 卫星数据库。 状态转换将包括磁层对 IMF By 和 Bz 分量变化的响应、前兆和对亚暴爆发的响应，以及通量管再填充的状态。 这些状态变化将使用从 DMSP 粒子数据确定的状态变量进行研究。 这些状态变量包括离子各向同性边界和极帽边界——从中可以估计极帽面积。 该数据库包括超过 356,000 个夜间穿越点，将对这些穿越点进行统计调查，并根据亚暴阶段进行排序。