Sea ice diatom concentrations from the Belcher islands archipelago, Hudson Bay, Canada

Diatom concentrations (valves/ml) from the bottom 5 cm of modern sea ice samples from the Belcher Islands Archipelago, south-eastern Hudson Bay, Canada between April and May 2019 using a Kovacs Mark II core barrel with an internal diameter of 9 cm. Diatom quantification was done using a light microscope (Zeiss Axio Imager.A2 upright research microscope, University of Helsinki) with phase contrast optics at a x1000 magnification.

本数据集收录了2019年4月至5月采自加拿大哈德逊湾东南部贝彻群岛的现代海冰样品底部5 cm层位的硅藻浓度数据，单位为硅质壳/毫升（valves/ml）。采样采用内径9 cm的科瓦奇（Kovacs）Mark II型岩芯取样器完成。硅藻定量分析借助赫尔辛基大学配备相差光学系统的蔡司Axio Imager.A2正置研究级光学显微镜，以1000倍放大倍率进行计数。