Theoretical Studies on Ionospheric Irregularities, Plasma Turbulence and Electron Acceleration

电离层不规则性、等离子体湍流和电子加速的理论研究

• 批准号: 9520140
• 负责人: Yakov Dimant
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9520140&HistoricalAwards=false
• 关键词: Theoretical; Studies; Ionospheric; Irregularities; Plasma

This program on ionospheric density irregularities will focus on the fundamental quantitative understanding of the characteristics of plasma turbulence in the E and F regions of the Earth's ionosphere. The main objective will be to develop a self- consistent theory of plasma turbulence driven by the Farley-Buneman instability, which occurs when the cross-field drift velocity of the electrons exceeds the sound velocity. In addition to the main objective, the PIs will investigate the intermittent acceleration of electrons in current sheets that develop because of magnetohydrodynamic activity in the medium.***

这一关于电离层密度不规则性的方案将侧重于对地球电离层E和F区域等离子体湍流特性的基本定量理解。 主要目标是发展Farley-Buneman不稳定性驱动的等离子体湍流的自洽理论，当电子的跨场漂移速度超过声速时，会发生这种不稳定性。 除了主要目标外，PI还将研究由于介质中的磁流体动力学活动而产生的电流片中电子的间歇性加速。