On the Transverse Circulation in a Coastal Plain Estuary

滨海平原河口横环流研究

• 批准号: 9530394
• 负责人: Kamazima Lwiza
• 金额: $ 12.2万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530394&HistoricalAwards=false
• 关键词: Transverse; Circulation; Coastal; Plain; Estuary

9530394 Lwiza In this project, the PIs will study the dynamics of transverse flow in a coastal plain estuary, specifically the James River estuary in Virginia. Two parallel transects with high spatial resolution measurements will be occupied, using an Acoustic Doppler Current Profiler, and CTD casts during two tidal cycles on spring and neap tides. In addition, high temporal resolution measurements will be made with three current meter moorings at each one of the two transects and two bottom pressure recorders at either side of the estuary between the two transects. Three different dynamical regimes in the year will be addressed, namely, high river discharge (May), low river discharge (August), and the weakest vertical stratification (October). A number of objectives relating to the transverse circulation will be addressed, culminating in an evaluation of the dominant terms in the transverse momentum balance, both from the observations and from a numerical model.

9530394 Lwiza 在这个项目中，PI 将研究沿海平原河口，特别是弗吉尼亚州詹姆斯河河口的横流动力学。 将使用声学多普勒洋流剖面仪和春潮和小潮两个潮汐周期期间的 CTD 预测，占据两个具有高空间分辨率测量的平行横断面。 此外，高时间分辨率测量将通过两个横断面中每一个的三个海流计系泊装置以及两个横断面之间河口两侧的两个底部压力记录仪进行。 将讨论一年中三种不同的动力状况，即高河流流量（五月）、低河流流量（八月）和最弱的垂直分层（十月）。 将解决与横向环流相关的许多目标，最终根据观测和数值模型评估横向动量平衡中的主导项。