Lower Thermospheric Science using New Meteor Radars at McMurdo and WAIS Divide

在麦克默多和威斯康星州分水岭使用新型流星雷达进行低层热层科学

• 批准号: 1543446
• 负责人: Scott Palo
• 金额: $ 101.22万
• 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: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1543446&HistoricalAwards=false
• 关键词: Lower; Thermospheric; Science; using; New

The Arctic and Antarctic are unique for the upper atmospheric research as these polar regions affect significantly the dynamics of planetary atmospheric circulations. Like the oceans, Earth's atmosphere experiences planet-wide gravitational tides caused by the Moon. In addition to planetary atmospheric waves of various scale caused by Earth's rotation, the largest amplitude of upward-propagating, thermally forced atmospheric tides are generated by the periodic heating of the atmosphere by the Sun ? the atmosphere is heated during the day and not heated at night. All of these phenomena transport heat and momentum from the lower atmosphere into the upper atmosphere. Understanding the coupling of these waves between both the Northern and Southern hemispheres and from the lower atmosphere to the ionosphere and upper atmosphere will lead to the key processes responsible for transporting energy throughout the entire atmosphere-ionosphere system.This award will let scientists investigate the spatial-temporal structure and variability of the Antarctic mesosphere and lower thermosphere circulation at high latitudes. For this goal, a state-of-the-art meteor radar system will be installed at McMurdo Station, which then will provide hourly mean velocities of the zonal and meridional neutral winds between 80 and 100 km altitude operating continuously 24/7 through the year. Two existing models, the Modern Era Retrospective-Analysis for Research and Applications (MERRA) and the Global-Scale Wave Model (GSWM), will be employed to analyze radar observations in the global context. The collected data will be published almost instantaneously at a project website and provided to the NSF-supported CEDAR/Madrigal database and the Antarctic Master Directory. The project supports and trains one graduate and one undergraduate students; a young professional research assistant will also be involved in this effort. To broaden participation of underrepresented groups, students from the University of Colorado Summer Multicultural Access to Research and Training program will be engaged to locate qualified students to participate on this project.

北极和南极是高层大气研究的独特之处，因为这些极地地区对行星大气环流的动态影响很大。像海洋一样，地球的大气层也会经历由月球引起的行星范围的引力潮汐。除了地球自转引起的各种规模的行星大气波之外，向上传播的热强迫大气潮汐的最大振幅是由太阳对大气的周期性加热产生的？大气在白天被加热而在晚上不被加热。所有这些现象都将热量和动量从低层大气传输到高层大气。了解这些波在北方和南半球之间以及从低层大气到电离层和高层大气的耦合，将有助于科学家们了解在整个大气-电离层系统中传输能量的关键过程。该奖项将使科学家们能够研究南极高纬度中间层和低热层环流的时空结构和变化。为此，将在麦默多站安装一个最先进的流星雷达系统，该系统将提供80至100公里高度的纬向和纬向中性风的每小时平均速度，全年24小时不间断运行。两个现有的模型，现代回顾分析研究和应用（MERRA）和全球尺度波模型（GSWM），将被用来分析雷达观测在全球范围内。收集到的数据将几乎立即在项目网站上公布，并提供给国家科学基金会支持的CEDAR/Madrigal数据库和南极主目录。该项目支持和培训一名研究生和一名本科生;一名年轻的专业研究助理也将参与这项工作。为了扩大代表性不足的群体的参与，学生从科罗拉多夏季多元文化访问研究和培训计划的大学将从事寻找合格的学生参加这个项目。

项目成果

Unusual Quasi 10‐Day Planetary Wave Activity and the Ionospheric Response During the 2019 Southern Hemisphere Sudden Stratospheric Warming

• DOI: 10.1029/2021ja029286
• 发表时间: 2021-06
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: Jack C. Wang;S. Palo;J. Forbes;J. Marino;T. Moffat‐Griffin;N. Mitchell

Improving ionospheric predictability requires accurate simulation of the mesospheric polar vortex

提高电离层可预测性需要准确模拟中间层极地涡旋

• DOI: 10.3389/fspas.2022.1041426
• 发表时间: 2022
• 期刊: Frontiers in Astronomy and Space Sciences
• 影响因子: 3
• 作者: Harvey, V. Lynn;Randall, Cora E.;Bailey, Scott M.;Becker, Erich;Chau, Jorge L.;Cullens, Chihoko Y.;Goncharenko, Larisa P.;Gordley, Larry L.;Hindley, Neil P.;Lieberman, Ruth S.
• 通讯作者: Lieberman, Ruth S.

First Observations From a New Meteor Radar at McMurdo Station Antarctica (77.8°S, 166.7°E)

南极洲麦克默多站（南纬 77.8°，东经 166.7°）的新流星雷达首次观测

• DOI: 10.1029/2022rs007466
• 发表时间: 2022
• 期刊: Radio Science
• 影响因子: 1.6
• 作者: Marino, J.;Palo, S. E.;Rainville, N.
• 通讯作者: Rainville, N.