Space Weather: Predicting the Heliosphere

太空天气：预测日光层

• 批准号: 0318590
• 负责人: Lennard Fisk
• 金额: $ 30.49万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0318590&HistoricalAwards=false
• 关键词: Space; Weather; Predicting; Heliosphere

The aim of this investigation is to fashion a conceptual framework for connecting magnetic flux emergence at the solar surface with the evolution of the overlying solar atmosphere and the solar wind. This will be accomplished by developing a physical theory, and thus a usable model based on this theory, which describes the coupling between the emergence of magnetic flux on the sun and the formation of the heliosphere. The critical premise of the effort is magnetic reconnection between closed-field loops and open field lines. This leads to (i) transport of magnetic flux, (ii) evolution of closed and open field regions, (iii) non-thermal heating of the coronal plasma, and (iv) acceleration and structuring of the solar wind. Each step in the chain will be examined and a quantitative prediction made of the processes involved. These predictions will be compared with observations and tested, thereby producing a conceptual, and physically intuitive, paradigm for this complex system.

这项调查的目的是时尚的概念框架连接磁通量出现在太阳表面的演变覆盖太阳大气和太阳风。 这将通过发展一种物理理论来实现，从而在此理论的基础上建立一个可用的模型，该模型描述了太阳上磁通量的出现与日光层的形成之间的耦合。 这一努力的关键前提是闭合场回路和开放场线之间的磁场重联。 这导致（i）磁通量的传输，（ii）封闭和开放场区域的演化，（iii）日冕等离子体的非热加热，以及（iv）太阳风的加速和结构。 我们将研究这一链条中的每一步，并对所涉及的过程进行定量预测。 这些预测将与观测结果进行比较和测试，从而为这个复杂的系统产生一个概念上的和物理上直观的范例。