Sea ice and oceanographic data in polynya region off Cape Darnley during JARE59

During JARE59, sea ice and oceanographic observations were conducted in the region off Cape Darnley. On 25 February 2018, sea ice conditions were recorded in accordance with the protocol for visual ice observation established by ASPeCt. On 26 February 2018, sea ice samples, water samples were obtained.The vertical profile of water temperature and salinity were measured by the XCTD, and the surface temperature and salinity were measured by SBE37 MicroCAT. The sea ice texture were analyzed throgh thick and thin sections of sea ice. The size distributions of particle in sea ice and seawter were measured with the Coulter counter. The cell abundance, species composition, and cell size were measuered by a microscope.在第59次日本南极考察（JARE59）期间，科研团队于达恩利角外海域开展海冰与海洋学观测作业。2018年2月25日，研究人员依照ASPeCt制定的目视海冰观测规程，记录了该区域的海冰状况。2018年2月26日，采集海冰样品与海水样品。水体温度与盐度的垂直剖面采用抛投式温盐深剖面仪（XCTD）进行测量，表层海水温度与盐度则通过SBE37 MicroCAT传感器获取。通过制备海冰厚薄切片，对海冰纹理结构开展分析。采用库尔特计数器（Coulter counter）测量海冰与海水中的颗粒物粒径分布。借助显微镜观测细胞丰度、物种组成及细胞粒径大小。