MAUI/MALT: A Meteor Radar for Collaborative Investigations of Waves, Winds, and Temperatures in the Mesosphere Above Haleakala, Hawaii

MAUI/MALT：用于协作研究夏威夷哈雷阿卡拉上方中间层波浪、风和温度的流星雷达

• 批准号: 0003182
• 负责人: Steven Franke
• 金额: $ 22.36万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0003182&HistoricalAwards=false
• 关键词: MAUI; MALT; Meteor; Radar; Collaborative

The investigators will deploy a meteor radar system at the Maui Space Surveillance Site near the summit of Haleakala, Hawaii, to study the spectrum of wind and temperature variability in the mesosphere and lower thermosphere. Continuous wind and temperature measurements provided by the meteor radar are crucial for interpreting the simultaneous airglow and lidar observations. In addition, the meteor radar observations of winds and temperatures combined with high resolution lidar measurements of temperatures will make it possible to characterize tidal oscillations in both the wind and temperature field and their seasonal variations. The meteor radar will measure the background wind field necessary to determine the periods of wind-shifted observed waves, and assess the role of instrumental filtering in the presence of variable wind shifting of the wave spectrum when interpreting statistical summaries of wave properties produced by the optical instruments. The effort will take advantage of the unique opportunity provided by the collocation of the sodium Doppler lidar and meteor radar to validate and refine the newly developed meteor radar and temperature measurement technique. This new technique offers the potential for continuous long-term monitoring of temperatures for investigations of the secular, annual, and tidal variations of the temperature field in the mesopause region.

研究人员将在夏威夷哈利卡拉山顶附近的毛伊岛空间监视地点部署流星雷达系统，以研究中间层和较低热层中的风和温度变化谱。流星雷达提供的连续的风和温度测量对于解释同时进行的气辉和激光雷达观测是至关重要的。此外，流星雷达对风和温度的观测与高分辨率激光雷达对温度的测量相结合，将有可能描述风和温度场中的潮汐振荡及其季节变化。流星雷达将测量确定风移观测海浪周期所需的背景风场，并在解释光学仪器产生的海浪特性统计摘要时，评估在海浪频谱存在风移变化的情况下仪器滤波的作用。这项工作将利用钠多普勒激光雷达和流星雷达搭配提供的独特机会，验证和改进新开发的流星雷达和温度测量技术。这项新技术为连续长期监测温度提供了可能性，以研究中高层温场的长期、年度和潮汐变化。