CEDAR Post-doc: Mesospheric Acoustic Gravity Wave Imaging and Tomography at a Sub Auroral Site

CEDAR 博士后：亚极光站点的中层声重力波成像和断层扫描

• 批准号: 9813867
• 负责人: Michael Mendillo
• 金额: $ 9万
• 依托单位: Trustees of Boston University
• 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: 1999-01-15 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9813867&HistoricalAwards=false
• 关键词: CEDAR; Post; doc; Mesospheric; Acoustic

ATM9813867This proposal will support the post-doctoral research of Dr. Steven Smith at Boston University's Center for Space Physics. The research will use the Boston University CEDAR Optical Tomography Imaging Facility (COTIF) to study the mesosphere and lower thermosphere (MALT). COTIF is a four-site network in New England consisting of an all-sky imager at Millstone Hill and three imaging spectrographs (two in Maine and one in Rhode Island), the only optical facility worldwide capable of ground-based atmospheric emission tomography. This project will take advantage of a new spacing configuration for detecting structure in the 80 to 150 km domain. The study will make use of existing as well as new data. Specific emphasis will be placed on studying the altitude variations of acoustic gravity waves. The data analysis will yield estimates of the vertical momentum flux of gravity waves at two altitudes. The divergence of the vertical flux gives the acceleration or deceleration of the mean wind field by interactions between the neutral winds and waves. Long term seasonal and local time variations in gravity waves will also be investigated

ATM9813867该提案将支持波士顿大学空间物理中心史蒂文·史密斯博士的博士后研究。 该研究将使用波士顿大学 CEDAR 光学断层成像设施 (COTIF) 来研究中间层和低层热层 (MALT)。 COTIF 是新英格兰的一个由四个站点组成的网络，由位于 Millstone Hill 的一台全天空成像仪和三台成像光谱仪（两台位于缅因州，一台位于罗德岛）组成，是全球唯一能够进行地面大气发射断层扫描的光学设施。 该项目将利用新的间距配置来检测 80 至 150 公里范围内的结构。 该研究将利用现有数据和新数据。 将特别重点研究声重力波的高度变化。 数据分析将得出两个高度处重力波垂直动量通量的估计值。 垂直通量的散度通过中性风和波浪之间的相互作用给出平均风场的加速或减速。 还将研究重力波的长期季节性和当地时间变化