Diffusion Studies in Guiana Abyssal Water Masses using Velocity Finestructure Measurements and Float Trajectories

使用速度精细结构测量和漂浮轨迹进行圭亚那深海水体扩散研究

• 批准号: 9986700
• 负责人: Timothy Duda
• 金额: $ 22.65万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9986700&HistoricalAwards=false
• 关键词: Diffusion; Studies; Guiana; Abyssal; Water

Duda 9986700Funds are provided to deploy 8 isobaric Shearmeter floats in the Guiana Basin and track these for 10 months. The floats will measure the velocity shear and temperature difference across the height of the floats, 10 m, as well as the mean temperature and pressure at the depth of the float. This information will be used to infer the time variability of diapycnal mixing at the depth of the floats. The floats will be deployed on 3 pressure surfaces (4000 db, 3500 db, and 3000 db) over rough topography and at the two deeper levels over smooth topography. The aim of the study is to improve understanding of diapycnal mixing under varying environmental conditions. The project will collaborate with the Guiana Abyssal Gyre Experiment (GAGE) and the Meridional Overturning Experiment (MOVE).

提供资金在圭亚那盆地部署8个等压剪切计浮标，并对其进行10个月的跟踪。浮标将测量横跨浮标高度（10米）的速度切变和温差，以及浮标深度的平均温度和压力。这一信息将被用来推断在浮标深度处的水流混合的时间变异性。浮子将部署在粗糙地形上的3个压力面（4000 db、3500 db和3000 db）上，以及光滑地形上的两个更深层次上。本研究的目的是提高对不同环境条件下的跨周期混合的理解。该项目将与圭亚那深海环流实验（GAGE）和经向翻转实验（MOVE）合作。