Correlative MR Radar Studies of Large-Scale Middle Atmosphere Dynamics in the Antarctic

南极大尺度中层大气动力学的相关MR雷达研究

• 批准号: 9813629
• 负责人: David Fritts
• 金额: $ 18.19万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9813629&HistoricalAwards=false
• 关键词: Correlative; MR; Radar; Studies; Large

This project will continue an analysis of the atmospheric dynamics in the antarctic upper mesosphere and lower thermosphere (MLT at altitudes of 70 to 100 km) from a number of existing data sources, and continue the active cooperation with the British Antarctic Survey in operating an MLT radar installed at Rothera as part of a prior award.The Rothera MLT radar produces high resolution measurements of the horizontal wind field that can define clearly the tidal, planetary wave, and gravity wave activity at the top of the neutral atmosphere. These data will be used to (1) investigate the large-scale wave dynamics in conjunction with similar data sets from McMurdo, Davis and Syowa stations; (2) investigate the regional structure of mesopause by combining Rothera MLT data with satellite data and the results of a rocketsonde program at the German antarctic station; and (3) investigate inter-hemispheric and global connections through correlative studies with northern hemisphere data sets.

该项目将继续根据多个现有数据源分析南极上层中间层和下层热层（高度为 70 至 100 公里的 MLT）的大气动力学，并继续与英国南极调查局积极合作，操作安装在 Rothera 的 MLT 雷达（作为先前奖项的一部分）。 Rothera MLT 雷达产生水平风场的高分辨率测量结果，可以清楚地定义 中性大气层顶部的潮汐、行星波和重力波活动。 这些数据将用于（1）结合来自麦克默多、戴维斯和昭和站的类似数据集研究大规模波浪动力学； (2) 将 Rothera MLT 数据与卫星数据以及德国南极站火箭探空仪计划的结果相结合，研究中层顶的区域结构； (3) 通过与北半球数据集的相关研究来调查半球间和全球的联系。