SGER: The Non-Contact Determination of River Flow Rates

SGER：河流流量的非接触式测定

• 批准号: 0341911
• 负责人: Edwin Cowen
• 金额: $ 7.34万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0341911&HistoricalAwards=false
• 关键词: SGER; Non; Contact; Determination; River

ABSTRACTPROPOSAL NO.: CTS-0341911PRINCIPAL INVESTIGATORS: EDWIN A COWENINSTITUTION: CORNELL UNIVERSITY THE NON-CONTACT DETERMINATION OF RIVER FLOW RATESThe United States Geological Survey (USGS) is responsible for monitoring the flow rates for over 7000 rivers across the United States. This monitoring mandate is expensive and often hazardous, as it requires direct in-the-field measurements by USGS personnel during storm events. The USGS, as well as other agencies responsible for river flow monitoring around the world, is extremely interested in the development of remote non-contact flow rate measurement capabilities. This grant is to develop an infrared-based quantitative imaging system for the determination of surface velocity fields and velocity fields at depth via remote non-contact means. The latter will be accomplished by considering the vertical turbulent thermal structure of river flows under non-equilibrium conditions. The proposed image analysis algorithms will be derived from the PI's previous development work with particle image velocimetry (PIV). The ultimate goal of this work is to develop a robust tool for the non-contact monitoring of river flows. The infrared measurement technique will have wide ranging uses beyond river flow monitoring including direct measurements of surface renewal for air-water gas transfer studies, near-surface transport of sediment in shallow sediment laden flows (such as the swash zone), as well as near-surface conditions in other two-phase flows such as aerated flows (e.g., the surf zone).

Abstract Propopos no。：CTS-0341911 PRICCIPAL研究者：Edwin a Cowenininstitution：康奈尔大学的非接触式确定美国河流Ratesthe美国地质调查局（USGS）负责监测美国7000多个河流的流速。这种监视授权是昂贵的，而且通常是危险的，因为它需要在暴风雨期间进行USGS人员的直接现场测量。 USGS以及其他负责全球河流监测的机构对发展远程非接触流量测量能力的发展非常感兴趣。 该赠款是通过远程非接触式均值开发基于红外的定量成像系统，以确定深度处的表面速度场和速度场。 后者将通过在非平衡条件下考虑河流的垂直湍流结构来完成。 所提出的图像分析算法将源自PI先前使用粒子图像速度法（PIV）的开发工作。 这项工作的最终目标是为河流的非接触式监测开发坚固的工具。 红外测量技术将在河流流量监测之外具有广泛的用途，包括直接测量空气水气体转移研究的表面更新，在浅层沉积物（例如swash区）以及附近的浅层沉积物中的近地表运输以及附近 - 在其他两相流中的表面条件，例如充气流（例如，冲浪区）。