CEDAR: Resonance Lidar Studies in the Arctic Mesopause

CEDAR：北极中层顶的共振激光雷达研究

• 批准号: 9979454
• 负责人: Richard Collins
• 金额: $ 31.01万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-01 至 2005-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9979454&HistoricalAwards=false
• 关键词: CEDAR; Resonance; Lidar; Studies; Arctic

ATM9979454absThe investigators will study the chemistry of meteoric metals in the mesosphere, the dynamics of the stratosphere and mesosphere, interaction of dynamics and chemistry in the mesosphere, meteoric input, and noctilucent clouds. The study will use observations made by two resonance lidar systems and one Rayleigh lidar located at Poker Flat, Alaska. The resonance lidar systems will make simultaneous common volume observations of two species in the mesopause region during each observation period (sodium and iron, or sodium and ionized calcium, or sodium and potassium). The lidar observations will be supplemented by measurements made with an OH interferometer, all-sky camera, photometer, magnetometer, and MF radar. The observational data will be used to develop chemical models and dynamical models of the mesopause region. The two sets of metal observations will force consistency in the chemical models while the Rayleigh lidar measurements will quantify the tidal and wave activity that propagates upward from the lower atmosphere. The measurements will also provide data for assessing the role of the next generation solid-state based wind/temperature lidar systems in the polar regions.

ATM9979454研究人员将研究中间层中大气金属的化学，平流层和中间层的动力学，中间层中动力学和化学的相互作用，大气输入和夜光云。这项研究将使用位于阿拉斯加Poker Flat的两个共振激光雷达系统和一个瑞利激光雷达进行的观测。共振激光雷达系统将在每个观察期内对中层顶区的两个物种(钠和铁，或钠和离子钙，或钠和钾)进行同时的共同体积观测。除了激光雷达观测外，还将使用OH干涉仪、全天相机、光度计、磁力计和MF雷达进行测量。观测数据将用于建立中层顶区的化学模型和动力学模型。这两组金属观测将迫使化学模型保持一致，而瑞利激光雷达的测量将量化从低层大气向上传播的潮汐和波浪活动。这些测量还将为评估下一代基于固态的风/温度激光雷达系统在极地地区的作用提供数据。