Solar Wind - Magnetosphere - Ionosphere Coupling

太阳风-磁层-电离层耦合

• 批准号: 8722962
• 负责人: George Siscoe
• 金额: $ 31.03万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-01 至 1992-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8722962&HistoricalAwards=false
• 关键词: Solar; Wind; Magnetosphere; Ionosphere; Coupling

This grant will support a program to develop a quantitative model for the global structure and dynamics of the solar wind- magnetosphere-ionosphere coupled system. It divides into four sub-projects: 1. Map the magnetic field that links the ionosphere to the solar wind through the dayside of the magnetosphere. The solar wind imposes its influence on the magnetopshere-ionosphere system mainly by attaching the magnetic field it carries with it onto the earth's magnetic field, which fills the magnetosphere the way air fills a balloon. The dayside of the magnetosphere is where the magnetic coupling takes place. Therefore, mapping the magnetic field in this region is important because it tells where the solar wind effect is concentrated, and it allows researchers to see the imprint of the attachment process at the ionospheric end, which is relatively accessible. 2. Develop a complete model of the magnetohydrodynamic structure of the global boundary of the magnetosphere. This is an extension of the first project, but the emphasis is on global completeness and explicit boundary architecture. 3. Work out the theory by which the solar wind communicates its influence to the ionosphere through electrical currents flowing between them on their linked magnetic field lines. And 4. Develop further and further apply a model which predicts the ionospheric winds that result from 3.. Overall the aim is to develop a global MHD picture of the way in which the sun's plasma energy couples down into the atmosphere.

这笔赠款将支持一个项目，以制定一个定量的 太阳风的全球结构和动力学模型 磁层-电离层耦合系统 它分为四个 次级项目：1. 绘制出连接 太阳风穿过电离层的阳面 磁层 太阳风将其影响强加于 磁层-电离层系统，主要是通过将磁层 它携带的磁场进入地球的磁场， 就像空气充满气球一样充满磁层 昼侧 磁层的中心是磁耦合发生的地方。 因此，绘制该区域的磁场图是重要的 因为它告诉我们太阳风效应集中在哪里， 研究人员可以看到依恋的印记 在电离层的一端，这是相对容易的过程。 2. 开发磁流体动力学结构的完整模型 磁层的全球边界。 这是一 第一个项目的延伸，但重点是全球 完整性和明确的边界架构。 3. 制定 太阳风将其影响传递给 电离层之间的电流 在它们相连的磁力线上。 和4. 进一步发展 并进一步应用预测电离层风的模型 这是由3.. 总的来说，目标是开发一个全球的磁流体力学图片， 太阳的等离子体能量耦合到 气氛