Ambient air mole fractions of selected volatile organic compounds measured in the University of Colorado container during the 2019-2020 MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition

This dataset contains ambient air mole fractions of selected volatile organic compounds (propane, isobutane, n-butane, and isoprene) measured at a 3-hr time resolution in the Central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. The backbone of MOSAiC was the year-round operation of the Research Vessel Polarstern that drifted with the sea ice across the Central Arctic from October 2019 to September 2020. Measurements were performed onboard Polarstern in the University of Colorado sea-container laboratory installed below deck in the forward cargo hold. A ~50 meter (m) long sampling line was deployed from the container to the bow crane to allow measurements forward of the vessel.本数据集收录了北极气候研究多学科漂流观测站（Multidisciplinary drifting Observatory for the Study of Arctic Climate，简称MOSAiC）考察期间，于北冰洋中心区域以3小时时间分辨率测得的若干选定挥发性有机化合物（volatile organic compounds）的环境空气摩尔分数，涉及的化合物包括丙烷、异丁烷、正丁烷与异戊二烯。该考察计划的核心支撑为极星号研究船（Research Vessel Polarstern）的全年运行：该船随海冰漂流穿越北冰洋中心区域，作业周期为2019年10月至2020年9月。测量工作于极星号研究船上的科罗拉多大学海运集装箱实验室内完成，该实验室设于前货舱甲板下方。研究团队布设了一条长约50米的采样管线，从该实验室连接至船首吊臂，以实现船舶前部区域的空气测量。