Southern Hemisphere Mid-Latitude Ground-Based Investigations of the Dynamics and Thermodynamics of the Mesosphere and Thermosphere

9300274高层大气区域（包括中间层和热层）的动力学和热力学研究必须在全球范围内进行，因为这些区域的水平输送和动力学和热力学耦合具有中心重要性。对这些高层大气区域的大部分调查都是在北半球进行的，而对南半球的调查则是最近才进行的。由于地理上的限制，对南方高层大气的研究需要国际合作。该提案特别要求支持坎特伯雷大学约翰山天文台（45oS，南岛，新西兰）与坎特伯雷大学位于附近的中间层和低层热层（MALT）部分反射雷达的高分辨率光学光谱仪的运行。这个观测站是南半球国际合作项目的一部分，该项目旨在调查南半球的高层大气，包括新西兰（约翰山和伯德林平原）、澳大利亚（贝弗里奇和阿德莱德）和南极洲（南极、斯科特基地、莫森和哈雷湾）的光学和雷达站。约翰山由坎特伯雷大学、华盛顿大学和阿拉斯加大学在美国/新西兰合作科学计划的支持下运营，位于战略位置，用于研究南半球中高纬度过渡区域的高层大气动力学和热力学。所获得的观测结果将借助随时间变化的NCAR耦合热层和电离层全球环流模式（TIGCM）提供的模拟进行解释。＊＊＊

9300274 The study of the dynamics and thermodynamics of the upper atmospheric regions including the mesosphere and the thermosphere must be done on a global scale because of the central importance of horizontal transport and coupling of the dynamics and thermodynamics of these regions. Most of the investigations of these regions of the upper atmosphere have been made in the Northern Hemisphere while investigations in the Southern Hemisphere are most recent. Because of the geographical constraints, the studies of the austral upper atmosphere necessitate international cooperation. This proposal specifically requests support for the operation of an optical high-resolution spectrometer at the University of Canterbury's Mount John Astronomical Observatory (45oS, South Island, New Zealand) in conjunction with the University of Canterbury's mesosphere and lower thermosphere (MALT) partial- reflection radar located nearby. This station is part of a Southern Hemisphere collaborative international program to investigate 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 and Halley Bay). Mount John, operated by the Universities of Canterbury, Washington and Alaska under the US/NZ Cooperative Science Program auspices, is strategically located to study the upper atmosphere dynamics and thermodynamics of the transition region between mid and high latitudes in the Southern Hemisphere. The observations obtained will be interpreted with the aid from simulations provided from the time-dependent NCAR coupled thermosphere and ionosphere global circulation model (TIGCM). ***