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.本报告呈现了别林斯高晋海（Bellingshausen Sea）区域内CTD（温盐深测量，Conductivity-Temperature-Depth）的测量结果，该海域的CTD实测数据较为稀缺。报告主体部分简要阐述了CTD数据的采集与处理流程、温度、盐度及密度的垂直剖面，以及上述水文参数在水文断面上的分布图谱。报告的最终章节探讨了一项关键结论：若将不同站位的垂直密度分布以无量纲垂向坐标为自变量进行表征，其结构具有显著的相似性；研究指出，该类分布可视为沿中性面进行的定常混合的渐近极限。