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.

总的来说，PI将提高对高纬度热层声学重力波的认识。 他主要分析来自SuperDARN高频雷达网络的数据。 在以前工作的基础上，他将使用为观察重力波和观察等离子体流和场向电流而开发的技术。 要研究的波的各个方面包括：研究太阳风与国际货币基金组织变化之间的联系并产生重力波，确定由于太阳和磁层能源而在高纬度热层中产生的重力波能量，并确定在中层上层和热层下层储存的焦耳加热能量中有多少被重力波带到热层上层。 最后，他将继续追求从中层顶波反射的理论理解。