US GLOBEC: Investigation of Wate-Mass Exchange Across the Tidal Mixing Front over Southern Georges Bank and Its Impact on Larval Fish and Zooplankton Populations

美国 GLOBEC：调查南乔治滩潮汐混合锋线上的水质量交换及其对幼鱼和浮游动物种群的影响

基本信息

批准号：
9806498
负责人：
James Ledwell
金额：
$ 75.71万
依托单位：
Woods Hole Oceanographic Institution
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1998
资助国家：
美国
起止时间：
1998-11-01 至 2003-10-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9806498&HistoricalAwards=false
关键词：
US GLOBEC Investigation Wate Mass

项目摘要

U.S. GLOBEC: Water-Mass Exchange across the Tidal Mixing Front over Southern Georges Bank and Its Impact on Larval Fish and Zooplankton PopulationsThis project will focus on water mass exchange and mixing across the tidal mixing front over Georges Bank and the impact these processes have on larval fish and zooplankton populations. As part of the project, a series of field studies will be carried out in the region of the tidal mixing front over the northeast peak and southern flank during May-June 1999. These studies will include dye and drifter tracking as well as ADCP, CTD, and video plankton recorder (VPR) surveys. In addition, the investigators will use a diagnostic model to explore how differences in near-frontal motions and mixing rates influence larval and zooplankton movement. The field data will be analyzed to (1) resolve the 3-dimensional circulation and zooplankton population field in the region of the tidal mixing front, (2) to identify regions of convergence onto the front, (3) to quantify rates of convergence and cross-frontal exchange of both water and zooplankton, (4) to quantify diapycnal and isopycnal mixing rates in the frontal region, and (5) to examine zooplankton swimming behavior in relation to various conditions of stratification, flow, and vertical mixing rate.

美国环球环公司：遍布乔治南部银行的潮汐混合阵线的水质交换及其对幼虫鱼和浮游动物种群的影响，这将集中于乔治·库（Georges Bank）上的潮汐混合阵线的水量交换和混合，以及这些过程对幼虫鱼和浮游动物种群的影响。作为该项目的一部分，1999年5月至6月期间，将在东北峰和南侧的潮汐混合区域进行一系列现场研究。这些研究将包括染料和漂流者跟踪以及ADCP，CTD和视频浮游生物（VPR）调查。此外，研究人员将使用诊断模型来探索近额外运动和混合速率的差异如何影响幼虫和浮游动作。 The field data will be analyzed to (1) resolve the 3-dimensional circulation and zooplankton population field in the region of the tidal mixing front, (2) to identify regions of convergence onto the front, (3) to quantify rates of convergence and cross-frontal exchange of both water and zooplankton, (4) to quantify diapycnal and isopycnal mixing rates in the frontal region, and (5) to examine浮游动物游泳行为与各种分层，流动和垂直混合速率有关。