Doppler On Wheels Mobile Radar Network

智力优势：根据该合作协议，首席研究员将提供一个三系统地面移动雷达舰队，即多普勒轮式雷达（DOWs），作为国家设施。这三个系统包括两个移动x波段多普勒轮和6到12波束“快速扫描道”。在过去，这些雷达系统参与的研究项目涵盖了广泛的主题，包括单个积云研究、地形降水和动力学、水文研究、火灾天气调查、强对流风暴和登陆的热带气旋。通过将这些系统建立为国家设施，社区使用移动雷达系统的机会将大大增加，同时研究活动也会增加。DOW移动多普勒网络在获取空间和时间精细尺度的三维单多普勒和多普勒矢量风场和反射率场方面发挥着关键作用，以支持NSF社区的各种科学研究。DOW网络具有以下特点：超高分辨率三维采样，DOWs的体积重复间隔为50秒，Rapid-Scan DOW的体积重复间隔为5-10秒；快速部署：在美国部署时间约为36小时；近地观测：机动性允许低至地面以上100米的典型多普勒观测和低至地面以上20米的单多普勒观测；恶劣环境：DOWs可以在10厘米冰雹、70米每秒风速、盐雾、火山灰等环境下工作。更广泛的影响：由于易于使用、可运输和低部署成本，DOWs可以经常用于现场教育活动，例如作为大学大气仪器课程的一部分。DOWs可以由学生在极少的、通常是远程的技术监督下操作。DOWs大大增加了大气科学界的设施基础设施。预计来自不同机构和学科的许多研究人员将在各种研究项目中使用这些系统。

Intellectual Merit: Under this Cooperative Agreement the Principal investigator will provide as a national facility a three-system ground-based mobile radar fleet, the Doppler On Wheels (DOWs). The three systems include two mobile X-band Doppler on Wheels and the 6 to 12 beam "Rapid Scan DOW". In the past these radar systems have participated in research projects that have covered a broad range of topics including individual cumulus cloud studies, orographic precipitation and dynamics, hydrologic studies, fire weather investigations, severe convective storms and tropical cyclones at landfall. By establishing these systems as a national facility, community access to mobile radar systems will be greatly enhanced with a concomitant increase in research activities. The DOW mobile multiple-Doppler network has the potential to play a critical role in obtaining spatially and temporally fine-scale three-dimensional single-Doppler and multiple- Doppler vector wind fields and reflectivity fields in support of a variety of the NSF community's scientific studies. The DOW network has the following characteristics: Ultra-high resolution three-dimensional sampling with volumetric repeat intervals of 50 seconds with the DOWs and 5-10 seconds with the Rapid-Scan DOW; Rapid Deployment: Deployment time in the USA is about 36 hours; Near ground observations: Mobility permits typical multiple-Doppler observations as low as 100 meters above ground level and single-Doppler observations as low as 20 meters above ground level; Hostile environments: The DOWs can operate in environments with 10 centimeter hail, 70 meter per second winds, salt spray, volcanic ash, etc. Broader Impacts: Due to the ease of use, transportability and low deployment cost, the DOWs can be frequently utilized on site for educational activities, such as being part of a university atmospheric instrumentation courses. The DOWs can be operated by students with minimal, often remote, technical supervision. The DOWs add significantly to the facility infrastructure of the atmospheric sciences community. It is anticipated that many researchers from many different institutions and disciplines will be using these systems on a variety of research projects.