Southern Hemisphere Mid-Latitude Neutral Upper Atmospheric Dynamics and Thermodynamics

该提案请求支持美国参与坎特伯雷大学约翰山天文台(44号S，新西兰南岛)的光学高分辨率光谱仪的运行，这是美国/新西兰合作科学计划的一部分。约翰山是南方联盟的成员，也就是南半球调查南半球高层大气的国际合作计划，包括新西兰(约翰山和伯德林斯平地)、澳大利亚(贝弗里奇和阿德莱德)和南极洲(南极、斯科特基地、莫森、戴维斯、西奥瓦、到达高地和哈雷湾)的光学和雷达站。约翰山是南半球中纬度地区唯一的全职光学实验，已经在研究中层、低热层和电离层(MLTI)的长期动力学和热力学。此外，当这些拟议的地面观测与卫星实验的观测以及建模和模拟的结果相结合时，它们将增加我们对南半球上层大气的了解和知识。

This proposal requests support for the U.S. involvement in the operations of an optical high-resolution spectrometer at the University of Canterbury's Mount John Astronomical Observatory (44 S, South Island, New Zealand), and is part of the US/NZ Cooperative Science Program. Mount John is a member of the Austral Alliance, i.e. the Southern Hemisphere's international collaborative program for the investigation of the austral upper atmosphere, and includes optical and radar stations in New Zealand (Mount John and Birdlings Flat), Australia (Beveridge and Adelaide) and Antarctica (South Pole, Scott Base, Mawson, Davis, Syowa, Arrival Heights, and Halley Bay). Mount John is the only full-time optical experiment at Southern Hemisphere midlatitudes already in the process of investigating the long-term mesospheric, lower-thermospheric and ionosphere (MLTI) dynamics and thermodynamics. Further, when these proposed ground-based observations are combined with observations from satellite-borne experiments, as well as the results of both modeling and simulations, they will increase out understanding and knowledge of the Southern Hemisphere's upper atmosphere.