MRI: Acquisition of an Acoustic Doppler Current Profiler (ADCP) System for Profiling Open Channels

该主要研究仪器（MRI）项目拨款将支持购置模块化声学多普勒电流分析器（ADCP）仪器系统，该系统将对北达科他州和中西部上游的溪流、河流、湖泊、运河和涵洞进行基础研究。ADCP仪器既可以在船上部署，也可以在静态平台上部署，可以自主收集数据。ADCP允许空间和同时解决水速剖面的量化，这种测量是跨流域更好地预测洪水事件所必需的。因此，该工具将支持旨在促进国家健康、繁荣和福利的研究，因为改进的洪水预报可以减少人类生命损失，可以用来帮助减轻财产损失，并最有效地针对第一响应者的努力，通过研究这些系统，可以采取更好的土木工程方法来减轻未来洪水事件的严重程度。该仪器系统将支持来自北达科他州大学（UND）、谷城州立大学（VCSU）和部落学院龟山社区学院（TMCC）的各个工程、科学、自然资源、地球科学部门和项目的教师和学生组成的多学科研究小组进行与水资源相关的研究。许多研究具有社会相关性，将有助于改进洪水预报并为水资源管理决策提供信息。研究人员计划让K-12年级的学生进行实地分析技术应用于流域水文学研究问题的体验式学习。将使用该奖项的资金购买的ADCP将支持以下基础研究：融雪引发北达科他州河流和溪流洪水的明渠流动的流体动力学；草原恢复对河川水文的影响研究以及北达科他州和中西部上游大河和高级溪流、湖泊、运河和涵洞中营养物质、溶质和沉积物运输动力学的研究。ADCP允许空间和同时解决的复杂流场的量化，其中层流和湍流在短时间尺度上相互作用。ADCP依靠从水柱内粒子散射回来的声波的多普勒效应，允许以厘米尺度分辨率对水体进行流场和深度剖面。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This Major Research Instrumentation (MRI) Program grant will support acquisition of a modular Acoustic Doppler Current Profiler (ADCP) instrument system that will enable fundamental research on stream, river, lake, canals and culverts in North Dakota and the upper Midwest. ADCP instruments are both boat and static platform deployable and can collect data autonomously. ADCP allows for spatially and contemporaneously resolved quantification of water velocities profiles and such measurements are necessary across watersheds to better forecast flooding events. As such the instrument will support research that is poised to advance the national health, prosperity and welfare in that improved flood forecasting can reduces loss of human life, can be used to help mitigate property damage and most efficiently target first responder efforts, and by study of these systems, better civil engineering approaches can be taken to lessen the severity of future flooding events. The instrument system would support a multi-disciplinary research group of faculty and students from various engineering, science, natural resources, geoscience departments and programs at the University of North Dakota (UND), Valley City State University (VCSU), and Turtle Mountain Community College (TMCC), a tribal college, to conduct water resources related research. Much of the research is societally relevant and will help to improve flood forecasting and inform water resources management decisions. The investigators plan to engage K-12 students in experiential leaning of field analytical techniques as applied to research problems in watershed hydrology.The ADCP that will be purchased using funds from the award will support fundamental research on: the hydrodynamics of open channel flows in snow-melt triggered flooding on North Dakota rivers and streams; studies of the impacts of prairie restoration on stream and river hydrographs; and studies of nutrient, solute and sediment transport dynamics in large rivers and higher order streams, lakes, canals and culverts in North Dakota and the upper Midwest. ADCP allows for spatially and contemporaneously resolved quantification of complex flow fields where laminar flow and turbulence interact on short timescales. ADCP relies on the Doppler effect of sound waves scattered back from particles within the water column to allow for flow field and depth profiling of the water bodies with cm-scale resolution.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.