MRI: A Rapid-Scan Mobile Doppler Radar

俄克拉何马大学的车轮上多普勒（DOW）项目（与国家大气研究中心密切合作）开发了单波束移动多普勒雷达。这使得收集各种气象现象，包括龙卷风和山区对流风暴的高分辨率多普勒数据成为可能。这些数据使大气科学取得了重大进展。根据NSF主要研究仪器项目，首席研究员将开发一种先进的五波束移动多普勒雷达。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、微爆发和其他现象在时间尺度上的演变是传统雷达无法观测到的。一种创新的设计将允许使用具有多个同步发射和接收波束的混合电子/机械扫描系统进行快速扫描观察。这台仪器将被研究人员用来开辟新的研究途径。

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.