Destratification and mixing by boundary turbulence in oceans and rivers

海洋和河流边界湍流造成的去层化和混合

• 批准号: DP230102585
• 负责人: A/Prof Jimmy Philip
• 金额: $ 45.01万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2023
• 资助国家: 澳大利亚
• 起止时间: 2023-02-01 至 2026-01-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP230102585
• 关键词: Destratification; mixing; boundary; turbulence; oceans

Periods of high temperature heat the surfaces of the oceans and lowland rivers, thereby increasing stratification and inhibiting mixing. This undermines the processes that normally distribute heat and CO2 and can lead to processes like rapid destratification in rivers that can result in mass fish-kills. This project aims to reveal the mixing and destratification mechanisms driven by turbulence from wind and sudden temperature change in oceanic and riverine systems through controlled laboratory experiments, targeted field measurements and theoretical modelling. Outcomes will include physical understanding, predictive models, and practical tools for waterway management, with the potential for better management of our riverine systems.

高温时期加热了海洋和低地河流的表面，从而增加了分层，抑制了混合。这破坏了通常分布热量和二氧化碳的过程，并可能导致河流中的快速分层等过程，从而导致大规模鱼类死亡。该项目旨在通过受控的实验室实验、有针对性的实地测量和理论建模，揭示海洋和河流系统中由风和温度突变引起的湍流驱动的混合和去层化机制。成果将包括物理理解，预测模型和实用的水路管理工具，有可能更好地管理我们的河流系统。