HF Radar Studies of High-Latitude Thermospheric Gravity Waves

高纬度热层重力波的高频雷达研究

• 批准号: 9634232
• 负责人: William Bristow
• 金额: $ 13.6万
• 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: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1999-01-25
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634232&HistoricalAwards=false
• 关键词: HF; Radar; Studies; Latitude; Thermospheric

Overall, the PI will improve understanding of acoustic gravity waves in the high-latitude thermosphere. Mainly, he will analyze data from the SuperDARN HF radar network. Building upon previous work, he will use techniques developed both for observation of gravity waves and observation of plasma flows and field-aligned currents. Various aspects of the waves to be investigated include: examining the connection between solar wind and IMF changes and generating gravity waves, determining the amount of gravity wave energy in the high-latitude thermosphere due to solar and magnetospheric energy sources, and determining how much of the energy that is deposited in the upper mesosphere and lower thermosphere as Joule heating is carried away to the upper thermosphere by gravity waves. Finally, he will continue pursuing a theoretical understanding of wave reflection from the mesopause.

总体而言，PI将提高对高纬度热层中声学波的理解。 主要是，他将分析超级HF雷达网络的数据。 在以前的工作的基础上，他将使用开发的技术来观察重力波和血浆流和现场对齐电流的观察。 要研究的波的各个方面包括：检查太阳风与IMF变化和产生重力波之间的连接，确定由于太阳能和磁层能源而导致的高纬度热层中的重力波能量，并确定在Mesosphere上层中的层层和下层热潮流中的层层中的层层中的含量。 最后，他将继续从中期开始对波浪反射的理论理解。