We present data of measurements of thermohaline and bio-optical fields in the surface layer of the Kara Sea carried out in September 2012, during the 59th cruise of the R.V Akademik Mstislav Keldysh. Measurements were performed during vessel motion along the expedition route using a pump-through CTD system (temperature and salinity) and UV fluorescent lidar (concentrations of chlorophyll, total suspended matter, and dissolved organic matter) with a high spatial resolution (about 10-100 m). Detailed sea-area distribution maps of the above parameters are presented, frontal zones are detected, T,S diagrams for the surface water layer are constructed, and basic water types are identified. It is shown that Ob-Yenisei freshwater runoff is a main factor affecting properties of the surface layer. In the second part of this paper, a numerical model of the dynamics of continental runoff in the Kara Sea is suggested. Model experiments were carried out under real wind conditions of August-September 2011 (NCAR/NCEP reanalysis); the model was validated on the basis of in situ data collected during the cruise.
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机译：我们提供了2012年9月在R.V Akademik Mstislav Keldysh进行的第59趟航行中进行的卡拉海表层热盐碱和生物光学场测量数据。使用高解析度（约10-100）的泵送式CTD系统（温度和盐度）和UV荧光激光雷达（叶绿素，总悬浮物和溶解的有机物的浓度）进行测量，以进行沿探险路线的船只运动。 m）。给出了以上参数的详细海域分布图，检测了锋面区域，构造了地表水层的T，S图，并确定了基本水类型。结果表明，Ob-Yenisei淡水径流是影响表层特性的主要因素。在本文的第二部分中，提出了卡拉海大陆径流动力学的数值模型。在2011年8月至9月的实际风条件下进行了模型实验（NCAR / NCEP重新分析）;该模型是根据巡航期间收集的现场数据进行验证的。
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