Physical oceanography during POLARSTERN cruise ANT-XII/4

The report presents the results of the CTD measurements carried out in the Bellingshausen Sea - an area rare of CTD measurements. The main part of the report consists of the brief description of the CTD data acquisition and processing routines, the vertical profiles of temperature, salinity and density, and of the plots of the distribution of these properties along the hydrographic sections. The final part of the report deals with the notably similar structure of the vertical density distribution at different locations if presented as a function of a non dimensional vertical co-ordinate. It is pointed out that such a distribution could be an asymptotic limit of stationary mixing along neutral surfaces.

本报告呈现了在别林斯高晋海开展的温盐深剖面仪（Conductivity-Temperature-Depth，简称CTD）测量结果——该海域此前鲜有CTD测量作业。报告主体内容涵盖CTD数据采集与处理流程的简要说明、温度、盐度及密度的垂直剖面，以及上述参数沿水文断面的分布绘图。报告最后章节探讨了一项重要现象：若将不同站位的垂直密度分布以无量纲垂直坐标作为函数进行表征，其结构呈现出显著的相似性。研究指出，这类分布可视为沿中性面稳态混合的渐近极限。