Photospheric Magnetoconvection

光球磁对流

• 批准号: 9531778
• 负责人: Carolus Schrijver
• 金额: $ 29.25万
• 依托单位: Lockheed Missiles and Space Company Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9531778&HistoricalAwards=false
• 关键词: Photospheric; Magnetoconvection

This project will use magnetogram and filtergram sequences to derive flow maps and time histories of displacements of concentrations of magnetic flux. In addition, the PIs will study the dispersal of flux over the solar surface on scales of several supergranules and below, particularly the reaction of flows to the presence of fields. The central goal is finding an appropriate model to describe the transport phenomena associated with photospheric magnetic flux. Specifically, the PIs hope to gain understanding of the differences in the diffusion coefficients, to the deviations from classical random walk, and to the dependence of the flow pattern on the local mean magnetic flux density. The project will combine high-resolution data to allow a detailed study of subarcsecond topology and flux dynamics with uninterrupted long-duration sequences with large fields of view, allowing a statistical study of flux displacement histories. The program will provide a means for systematic and coherent analysis, specifically focusing on magnetoconvection.***

这个项目将使用磁图和滤波图序列来推导磁通量浓度的位移流图和时间历史。此外，pi将在几个超颗粒及以下的尺度上研究通量在太阳表面上的扩散，特别是流对场存在的反应。中心目标是找到一个合适的模型来描述与光球磁通量相关的输运现象。具体来说，pi希望了解扩散系数的差异，与经典随机游走的偏差，以及流型对局部平均磁通密度的依赖。该项目将结合高分辨率数据，允许对亚弧秒拓扑和通量动力学进行详细研究，不间断的长时间序列具有大视野，允许对通量位移历史进行统计研究。该程序将为系统和连贯的分析提供一种手段，特别侧重于磁对流