HF Radar Studies of High-Latitude Thermospheric Gravity Waves

总的来说，PI将提高对高纬度热层声波重力波的理解。他将主要分析来自superdamn高频雷达网络的数据。在先前工作的基础上，他将使用既用于观测引力波又用于观测等离子体流和场向电流的技术。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联系，确定高纬度热层中由于太阳和磁层能量来源而产生的重力波能量，以及确定在上层中间层和下层热层中沉积的能量中有多少是由于焦耳加热而被重力波带到上层热层的。最后，他将继续从理论上理解中气层的波反射。

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.