MRI: A Rapid-Scan Mobile Doppler Radar

MRI：快速扫描移动多普勒雷达

• 批准号: 0079791
• 负责人: Joshua Wurman
• 金额: $ 97.68万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0079791&HistoricalAwards=false
• 关键词: MRI; Rapid; Scan; Mobile; Doppler

The Doppler on Wheels (DOW) program at the University of Oklahoma (in close collaboration with the National Center for Atmospheric Research) has developed single beam, mobile Doppler radars. These have enabled the collection of very high resolution Doppler data on a variety of meteorological phenomena including tornadoes and convective storms in mountains. These data have allowed major advances to be made in the atmospheric sciences.Under the NSF Major Research Instrumentation program, the Principal Investigator will develop an advanced, five-beam mobile Doppler radar. This will allow researchers to acquire rapid scan Doppler radar information at higher temporal resolution than previously possible.There is a compelling need for three-dimensional Doppler radar observations on short time scales. Tornadoes, small-scale boundary layer structures in hurricanes, microbursts and other phenomena evolve on time scales that are unobservable using traditional radars. An innovative design will permit rapid-scan observations using a hybrid electronic/mechanical scanning system with multiple simultaneous transmit and receive beams. This instrument will be used by researchers to open up new avenues of research.

俄克拉荷马州大学的“车轮上的多普勒”（DOW）计划（与国家大气研究中心密切合作）已经研制出单波束、移动的多普勒雷达。 这使得能够收集关于各种气象现象，包括龙卷风和山区对流风暴的高分辨率多普勒数据。 这些数据使大气科学取得了重大进展。在国家科学基金会重大研究仪器计划下，首席研究员将开发一种先进的五波束移动的多普勒雷达。 这将使研究人员能够以比以前更高的时间分辨率获得快速扫描多普勒雷达信息，迫切需要在短时间尺度上进行三维多普勒雷达观测。 龙卷风、飓风中的小尺度边界层结构、微暴流和其他现象在时间尺度上演变，使用传统雷达无法观察到。 一个创新的设计将允许快速扫描观测使用混合电子/机械扫描系统与多个同时发射和接收光束。 研究人员将利用这一工具开辟新的研究途径。