MRI: Development of a Mobile Fe-Resonance/Rayleigh/Mie Doppler Lidar

MRI：移动铁共振/瑞利/米氏多普勒激光雷达的开发

• 批准号: 0723229
• 负责人: Xinzhao Chu
• 金额: $ 119.73万
• 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: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0723229&HistoricalAwards=false
• 关键词: MRI; Development; Mobile; Fe; Resonance

The investigators will develop an advanced, mobile, iron-resonance/Rayleigh/Mie Doppler lidar system to vertically profile temperatures, winds, meteoric iron densities, clouds and aerosols throughout the stratosphere, mesosphere and lower thermosphere. The proposed lidar integrates the state-of-the-art technologies of lasers, laser spectroscopy, electro-optics, and sensors into a single system to produce a powerful and robust tool with unmatched measurement capabilities. The revolutionary lidar design and the readiness of alexandrite laser technology make the Fe Doppler lidar superb in the following ways: it will be able to obtain simultaneous measurements of temperature (30-110 km), wind (80-110 km), Fe density (75-115 km), and aerosol (10-100 km) in both day and night with high accuracy, high precision, and high spatial and temporal resolutions. The lidar is robust and compact for groundbased mobile deployment. It is containerized to move via a truck or ship to field locations of interest with extensive geographic coverage. Chirp-free and dither-free frequency locking and saturation-free Fe layer resonance results in a bias-free estimate of winds and temperatures, which is revolutionary for Doppler lidar. High energy and the UV wavelength employed by the lidar leads to a much more sensitive estimate of temperature and aerosol backscatter in stratosphere and mesosphere than determined through Na and K lidars. The 80-cm multi-telescope receiver, double-etalon filter for high rejection of solar background, and a state-of-the-art diagnostic system ensures accurate measurements in both day and night. The resulting breakthrough in lidar technology will push the atmospheric observations to a completely new level and the mobility of the system will enable new scientific endeavors. The lidar will become a community tool, available to all scientific users. Partnerships with private sector companies will result in new products with wide scientific use and commercial impact. Innovative technologies developed in this project will lead to new applications of advanced laser and remote sensing technology in the detection of biological and chemical agents, in nano-scale tube engineering, and in semi-conductor inspection. Exceptional opportunities for graduate and undergraduate education and training will arise from this project. A large number of scientists have strong interests in the instrument development, spin-off applications, and the data collected by this lidar. Many of these scientists will educate and train graduate and undergraduate students for whom this instrument and its data will be essential. Minority and under-represented students will be recruited through the Woman in Engineering Office (WIE) and Research Experience for Undergraduates (REU). This project will support the research of a female scientist (PI).

研究人员将在整个平流层，中间层和较低的热球中开发出高级，移动的，铁的/雷利/MIE多普勒激光痛系统，以垂直介绍温度，风，气象，云密度，云和气溶胶。拟议的激光雷达将激光光谱，电镜和传感器的最先进技术整合到一个单个系统中，以生产具有无与伦比的测量功能的功能强大的工具。革命性的激光雷达设计和Alexandrite激光技术的准备就可以通过以下方式使Fe多普勒激光雷达出色：它将能够同时测量温度（30-110 km），风（80-110 km），风（80-110 km），FE密度（75-115 km）和临时景点（75-115 km），以及远处（10-100 km），高度准确，高度准确，精度，高度准确，精度和高度，高度准确，精确度，高度准确，精度，高度准确，高度准确，高度准确，决议。激光雷达强大，紧凑，用于基于地面的移动部署。它被容器通过卡车或船移动到感兴趣的现场位置，并具有广泛的地理覆盖范围。无chiRP和无抖动的无频率锁定频率锁定以及无饱和的FE层共振导致风和温度的无偏见估计，这对于多普勒激光雷尔而言是革命性的。与通过Na和k LiDARS确定的相比，LIDAR使用的高能量和紫外线导致对平流层和中层中温度和气溶胶反向散射的敏感性更高。 80厘米的多型镜接收器，可高排斥太阳背景的双元素过滤器和最新的诊断系统可确保白天和黑夜的准确测量。产生的激光雷达技术的突破将使大气观察到全新的水平，并且该系统的活动能力将实现新的科学努力。 激光雷达将成为所有科学用户的社区工具。与私营部门公司的合作伙伴关系将导致具有广泛科学用途和商业影响的新产品。该项目开发的创新技术将导致高级激光和遥感技术在检测生物和化学剂，纳米级管工程以及半导体检查中的新应用。该项目将为研究生和本科教育和培训提供出色的机会。许多科学家对仪器的开发，衍生应用以及该激光雷达收集的数据具有浓厚的兴趣。这些科学家中的许多人都会教育和培训毕业生和本科生，该乐器及其数据至关重要。将通过工程办公室（WIE）和本科生的研究经验（REU）招募少数群体和代表性不足的学生。该项目将支持女科学家（PI）的研究。