Collaborative Research: A Comprehensive Data Base of Global Reconnection Measurement

协作研究：全球重连测量的综合数据库

• 批准号: 1321860
• 负责人: Jesper Gjerloev
• 金额: $ 25万
• 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: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2019-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1321860&HistoricalAwards=false
• 关键词: Collaborative; Research; Comprehensive; Data; Base

This project will quantify the temporal and spatial variation of the global reconnection rates for a large range of solar wind conditions. The reconnection rate will be calculated by using the change in the magnetic flux that crosses the open-to-closed field line boundary. The calculation will make use of satellite images to determine the polar cap boundary and its changes while SuperDARN observations and the AMIE technique will be used to calculate polar cap convection. The AMIE technique uses ground magnetic observations. The calculations will give the reconnection rates for both magnetopause and magnetotail reconnection. They will be carried out for a wide range of magnetospheric activity including steady magnetospheric convection events, substorms and CME and CIR storms. They will create in SuperMAG a repository of the observations and code that will allow calculations of reconnection potentials for any solar wind and magnetospheric conditions. The work will support a graduate student and the team at APL will continue to be active in STEM education at all levels.

该项目将量化大范围太阳风条件下全球重新连接率的时间和空间变化。将利用穿过开放到闭合磁力线边界的磁通量的变化来计算重联率。计算将利用卫星图像确定极冠边界及其变化，同时利用SuperDARN观测和AMIE技术计算极冠对流。 AMIE 技术使用地面磁观测。计算将给出磁层顶和磁尾重联的重联率。它们将针对广泛的磁层活动进行，包括稳定磁层对流事件、亚暴以及 CME 和 CIR 风暴。他们将在 SuperMAG 中创建一个观测结果和代码存储库，以便计算任何太阳风和磁层条件下的重联电势。这项工作将为研究生提供支持，APL 团队将继续积极参与各级 STEM 教育。