Doppler On Wheels Mobile Radar Network

智力优势：根据这项合作协议，首席调查员将作为国家设施提供一支由三个系统组成的陆基移动雷达机队--车轮上的多普勒雷达(DOW)。这三个系统包括两个可移动的X波段车轮上的多普勒和6至12波束的“快速扫描DOW”。过去，这些雷达系统参与的研究项目涵盖了广泛的专题，包括个别积云研究、地形降水和动力学、水文学研究、火灾天气调查、强对流风暴和登陆时的热带气旋。通过将这些系统建立为国家设施，社区获得移动雷达系统的机会将大大增加，同时研究活动也会增加。陶氏移动多多普勒网络在获取空间和时间上精细的三维单多普勒和多多普勒矢量风场和反射率场以支持NSF社区的各种科学研究方面具有重要作用。陶氏网络具有以下特点：超高分辨率三维采样，DOW的体积重复间隔为50秒，快速扫描DOW为5-10秒；快速部署：在美国部署时间约为36小时；近地面观测：机动性允许典型的多多普勒观测低至地面100米，单多普勒观测低至地面20米；恶劣环境：DOW可以在10厘米冰雹、每秒70米风速、盐雾、火山灰等环境中运行。更广泛的影响：由于DOW的易用性、便携性和低部署成本，DOW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。DOW可以由学生在最少的、通常是远程的技术监督下操作。能源部大大增加了大气科学界的设施基础设施。预计来自许多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.