Development of Instrumented Experimental Facility for the Study of Large Scale River Morphology, Stratigraphy, and Landscape Evolution

大规模河流形态、地层学和景观演化研究仪器化实验设施的开发

• 批准号: 9512472
• 负责人: Gary Parker
• 金额: $ 25万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9512472&HistoricalAwards=false
• 关键词: Development; Instrumented; Experimental; Facility; Study

9512472 Parker This Academic Research Infrastructure grant provides $250,000 as one-half support of the development of an experimental facility for the study of large scale river morphology, stratigraphy and landscape evolution. The facility will be constructed at the St. Anthony Falls Hydraulic Laboratory, University of Minnesota in an existing indoor basin that is 14.3 m long and 7.3 m wide. The main elements of the basin will include, a rainmaker for simulating various hydrologic regimes, a hinged floor to simulate tectonic uplift and subsidence, a zone of ponded water and feed points for water and sediment along the basin. All elements of the basin are to be computer controlled and monitored by a data acquisition system. The main subsystems of the data acquisition system will be two computer controlled laser profilers for precision measurements of microrelief, a particle imaging velocimetry system for instantaneous measurement of surface flow velocities, an optical imaging system for instantaneous determination of channel depth and a stereoimaging system for determination of overall topography. This project is to be constructed and utilized by an interdisciplinary team consisting of a civil engineer, a sedimentologist, an environmental engineer, an agricultural engineer and an engineer with considerable knowledge of electronics. The basin is to be operable in both subaerial and subaqueous mode allowing for studies of both riverine processes and terrestrial landscape evolution and studies of continental shelf, slope and rise evolution. An automated mesocosm of this kind allows for the control of governing variables and monitoring on time and spatial scales that are not easily observed in field situations. This facility should provide a bridge between simulation and field research that hastens the development of new predictive tools and it is intended that the facility be made available to a broad spectrum of outside researchers. ***

9512472 Parker 这项学术研究基础设施拨款提供 250,000 美元，作为开发用于研究大规模河流形态、地层学和景观演化的实验设施的一半支持。 该设施将建在明尼苏达大学圣安东尼瀑布水利实验室现有的长 14.3 m、宽 7.3 m 的室内盆地内。 该盆地的主要元素包括：用于模拟各种水文状况的造雨机、用于模拟构造隆起和沉降的铰接底板、蓄水区以及盆地沿线的水和沉积物的供给点。 盆地的所有元件均由数据采集系统进行计算机控制和监控。 数据采集​​系统的主要子系统是两个用于精确测量微地形的计算机控制激光轮廓仪、一个用于瞬时测量表面流速的粒子成像测速系统、一个用于瞬时确定通道深度的光学成像系统和一个用于确定通道深度的立体成像系统。的整体地形。 该项目将由一个跨学科团队建造和使用，该团队由一名土木工程师、一名沉积学家、一名环境工程师、一名农业工程师和一名具有丰富电子知识的工程师组成。 该盆地可在陆上和水下模式下运行，以便研究河流过程和陆地景观演化以及大陆架、斜坡和隆起演化的研究。 这种自动化的中宇宙允许控制控制变量并在时间和空间尺度上进行监测，而这在现场情况下不容易观察到。 该设施应该在模拟和现场研究之间架起一座桥梁，从而加速新预测工具的开发，并且旨在将该设施提供给广泛的外部研究人员。 ***