U.S. GLOBEC: Phase II, Retention Processes -- Moorings and Highly-Resolved Hydrography

在美国globec西北大西洋实地研究第二阶段项目中，物理和物理/生物测量将调查Georges Bank上浮游动物和浮游鱼类的来源、保留和损失。该项目将重点关注的问题包括蓄水（以河岸内部再循环的形式）、从河岸南侧进入坡水的损失以及向西进入大西洋中部湾的损失。一个为期一年、由9个元素组成的系泊阵列将沿着海岸的东南端放置，以测量当地的运动学和再循环动力学，并观察大陆架断裂锋（实际上是海岸的南部边界）的特性。在南侧翼提出了三个高分辨率（1公里或更高分辨率）的海洋测量，以调查由于暖核环、风事件和大陆架断裂漩涡造成的损失。海洋调查将测量正常的物理变量（海流、温度和盐度），并将包括用浮游动物视频记录仪（VPR）和跟踪声学剖面系统（TAPS）进行的浮游动物观察。* * *

9632349 BRINK Physical and physical/biological measurements will investigate the sources, retention and losses of zooplankton and ichthyoplankton over Georges Bank during the U.S.GLOBEC Northwest Atlantic Field Studies Phase 2 program. This project will focus on issues involving retention (in the form of recirculation around the inner part of the Bank), losses from the southern flank of the Bank into the Slope Water, and losses westward into the Middle Atlantic Bight. A year-long, 9-element moored array will be placed along the southeastern end of the Bank to measure the local kinematics and dynamics of recirculation and to observe properties of the shelf break front (which is in effect the southern boundary of the Bank). Three highly resolved (1 km or better resolution) SeaSoar surveys are proposed along the southern flank to investigate losses due to warm-core rings, wind events, and shelf break eddies. SeaSoar surveys will measure normal physical variables (currents, temperature and salinity), and will include zooplankton observations made with a Video Plankton Recorder (VPR) and the Tracor Acoustic Profiling System (TAPS). ***