CEDAR Postdoc: Aeronomical and Spectroscopic Studies of Key Airglow Features at High/Low Latitudes

CEDAR博士后：高/低纬度关键气辉特征的航空学和光谱研究

• 批准号: 0924781
• 负责人: Tom Slanger
• 金额: $ 22.11万
• 依托单位: SRI International
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0924781&HistoricalAwards=false
• 关键词: CEDAR; Postdoc; Aeronomical; Spectroscopic; Studies

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The project focuses on investigations of the mesosphere/lower thermosphere region through examination of airglow spectra obtained at both low and high latitudes. The low latitude study will analyze spectral data on the OH Meinel band obtained by equatorial astronomical observatories. OH observations of OH are routinely used to investigate key mesospheric variables such as temperatures, tides, and gravity waves. The aim is to help resolve a current controversy about the temperature variability deduced from different OH rovibrational bands: the sky spectra from OH (v=3) and (v=8) bands will be compared with temperatures deduced from the O2 O-1 Atmospheric band. The high latitude study will use a new spectrograph, dubbed CESAR, developed under a recent NSF MRI award which will be sited and operated in coordination with the Poker Flat Incoherent Scatter Radar. The new spectrograph will obtain observations of the OH Meinel nightglow which will be compared to the observations from low latitudes. Spectra obtained during aurora will be analyzed to determine the temporal behavior of N2+, N2, and O2+ as well as the auroral enhancements in OH and O2. In terms of broader impacts, the project adds an important new instrument to NSF's Poker Flat Incoherent Scatter Radar facility, constituting a new community resource. The improved understanding of discrepancies currently reported in inferences of mesospheric temperatures from OH measurements will benefit researchers as well as investigations of climatological trends. A woman scientist will be supported at the start of her research career and undergraduate students will be involved in the project.

该奖项由2009年《美国复苏和再投资法》（公法111-5）资助，项目重点是通过检查在低纬度和高纬度获得的气辉光谱，对中间层/低热层区域进行调查。 低纬度研究将分析赤道天文观测站获得的OH Meinel波段的光谱数据。 OH的OH观测通常用于研究关键的中间层变量，如温度，潮汐和重力波。 其目的是帮助解决目前的争议推导出不同的OH振转带的温度变化：从OH（v=3）和（v=8）带的天空光谱将与推导出的O2 O-1大气带的温度进行比较。 高纬度研究将使用一种新的光谱仪，称为塞萨尔，根据最近的NSF MRI奖开发，将与扑克平板非相干散射雷达协调定位和操作。新的摄谱仪将获得OH Meinel夜光的观测结果，并将其与低纬度地区的观测结果进行比较。在极光期间获得的光谱将进行分析，以确定N2+，N2和O2+的时间行为以及OH和O2的极光增强。 就更广泛的影响而言，该项目为NSF的扑克牌平板非相干散射雷达设施增加了一种重要的新仪器，构成了一种新的社区资源。 对目前报告的从OH测量推断中间层温度的差异的更好理解将有利于研究人员以及气候趋势的调查。 一名女科学家将在其研究生涯开始时得到支持，本科生将参与该项目。