Collaborative Research: A Study of the Role of Eddies in Agulhas Leakage and the Circulation in the Southeastern Atlantic using KAPEX Float Data

该项目包括对RAFOS浮标的轨迹分析，作为KAPEX实验的一部分部署在非洲南端，结合地面漂浮物和卫星载高度计的辅助数据。对这些轨迹的初步分析表明，他们中的许多人被困在阿古拉斯漩涡中。这项工作的动机是相信阿古拉斯漩涡既提供了从印度洋流入大西洋的重要通道，又搅动了大西洋东南部的海洋。提出的分析旨在总结生活史和统计数据（包括：数量，大小，漩涡速度，平移速度，以及漩涡彼此之间和与水深的相互作用）。研究人员将把轨迹的细节与该地区各种数值模型的输出结果进行比较，并与一名德国研究人员合作绘制南大西洋中深度速度场的分布图。

0236527/ 0236654 Richardson/WoodingThis project consists of an analysis of the trajectories of RAFOS floats, deployed as part of the KAPEX experiment around the southern tip of Africa, in combination with ancillary data from surface drifters and satellite-borne altimeters. Preliminary analysis of these trajectories show that many of them were trapped in Agulhas eddies. A motivation for this work is the belief that Agulhas eddies both provide a significant conduit for flow from the Indian Ocean into the Atlantic and stir the ocean in the south-eastern Atlantic. The proposed analysis seeks to summarize the life history and statistics (including: number, size, swirl velocity, translational velocity, and the interactions of eddies with each other and with bathymetry). The investigator will compare the details of the trajectories with output from various numerical models of the region and collaborate with a German investigator in mapping the intermediate-depth velocity field in the S. Atlantic.