Discovery and tracking of coherent structures in geophysical flows

地球物理流中相干结构的发现和跟踪

• 批准号: DP150100017
• 负责人: Prof Gary Froyland
• 金额: $ 17.35万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150100017
• 关键词: Discovery; tracking; coherent; structures; geophysical

Coherent structures in geophysical flows play fundamental roles by organising fluid flow and obstructing transport. For example, ocean eddies strongly influence the transportation of heat, nutrients, phytoplankton, and fish larvae, in both the horizontal and vertical direction. Many coherent structures are very difficult to detect and track by direct measurement (for example satellite observations), and current mathematical techniques cannot provide an adequate global description. This project aims to create innovative new mathematical theory and numerical methods to discover and track coherent structures over time frames of physical importance, contributing significantly to our understanding of their role in the oceans' biosphere and climate.

地球物理流动中的相干结构通过组织流体流动和阻碍运输发挥着基础性作用。例如，海洋涡旋强烈地影响着热量、营养物、浮游植物和鱼苗在水平和垂直方向上的运输。许多相干结构很难通过直接测量(例如卫星观测)来检测和跟踪，而且目前的数学技术不能提供充分的全局描述。该项目旨在创建创新的新数学理论和数值方法，以发现和跟踪具有物理重要性的时间框架内的连贯结构，大大有助于我们了解它们在海洋生物圈和气候中的作用。