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

南半球中纬度中间层和热层动力学和热力学地面调查

• 批准号: 9300274
• 负责人: Gonzalo Hernandez
• 金额: $ 26.97万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1998-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9300274&HistoricalAwards=false
• 关键词: Southern; Hemisphere; Mid; Latitude; Ground

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). ***

9300274对包括中间层和热层在内的高层大气区域的动力学和热力学的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至关重要。 对这些高层大气区域的研究大多是在北方半球进行的，而对南半球的研究则是最近的。 由于地理条件的限制，对南半球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（南纬45度，新西兰南岛）的光学高分辨率分光计与附近的坎特伯雷大学的中间层和低热层部分反射雷达一起运行。 该站是南半球调查南部高层大气的国际合作方案的一部分，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。 在美国/新西兰合作科学计划的赞助下，由坎特伯雷大学、华盛顿大学和阿拉斯加大学运营的约翰山位于战略位置，用于研究南半球中高纬度过渡区的高层大气动力学和热力学。 所获得的观测结果将解释的援助，从模拟提供的时间依赖NCAR耦合热层和电离层全球环流模式（TIGCM）。 ***