Measurement of the spatial distribution of temperature and velocity in lakes using Acoustic Tomography.

使用声学断层扫描测量湖泊中温度和速度的空间分布。

• 批准号: DP0451119
• 负责人: Prof Jorg Imberger
• 金额: $ 15.84万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0451119
• 关键词: Measurement; spatial; distribution; temperature; velocity

This project will investigate the use of acoustic tomography in lakes to continuously measure the lake-wide distribution of temperature and velocity. The challenges with lake acoustic tomography are the accuracy required in the travel time measurements over shorter distances, acoustic losses due to reflections and ensuring enough rays travel through the thermocline, the region of greatest interest in lakes. A pilot experiment in a deep lake will investigate the quality of travel time measurements computed from rays travelling through the thermocline of a strongly stratified lake. This has wide applications for the water quality management of lakes and reservoirs.

本项目将研究在湖泊中使用声波层析成像来连续测量湖泊范围内的温度和速度分布。湖泊声波层析成像面临的挑战是在较短距离内测量旅行时间所需的精确度、反射造成的声学损失以及确保足够的光线通过温跃层，这是湖泊中最有价值的区域。在一个深湖中进行的一项试点实验将调查旅行时间测量的质量，该测量是根据光线通过强烈层化湖泊的温跃层计算得出的。这在湖泊、水库的水质管理中有着广泛的应用。