中国第12次北极科学考察(2021年)海水溶解氧(DO)分析数据

溶解在海水中的氧是海洋生命活动不可缺少的物质。其含量和在海洋中的分布既受化学过程和生物过程的影响，还受物理过程的影响。大气中的游离氧能够溶入海水，海水中的溶解氧能够逸入大气。在海－气界面上的这种交换，通常处于平衡状态。本数据为中国第12次北极科学考察海水溶解氧分析数据，对了解北极部分海域海水化学环境常规要素含量和垂直分布特征有重要意义。 1.测量仪器 仪器名称：数显滴定器 仪器型号：CITLAB 标定方法：根据海洋监测规范要求使用计量物质GBW碘酸钾标准溶液对硫代硫酸钠溶液进行标定。 2.观测方法和所获观测资料 根据海洋监测规范要求开展海水中溶解氧测试工作，取得15个站位的剖面数据资料及52个走航过程数据资料。Dissolved oxygen in seawater is an indispensable substance for marine organisms. Its concentration and distribution in the ocean are affected not only by chemical and biological processes, but also by physical processes. Free atmospheric oxygen can dissolve into seawater, while dissolved oxygen in seawater can outgas into the atmosphere. This exchange at the sea-air interface is typically in equilibrium. This dataset comprises dissolved oxygen analysis data collected during the 12th Chinese National Arctic Scientific Expedition, which holds great significance for understanding the concentrations of conventional seawater chemical environmental parameters and their vertical distribution characteristics in certain Arctic marine regions. 1. Measuring Instruments - Instrument Name: Digital Titrator - Instrument Model: CITLAB - Calibration Method: The sodium thiosulfate solution was calibrated using the GBW certified potassium iodate standard reference material in compliance with the Specifications for Marine Monitoring. 2. Observation Methods and Acquired Dataset Following the Specifications for Marine Monitoring, dissolved oxygen measurements in seawater were conducted, yielding profile datasets from 15 sampling stations and underway survey datasets from 52 navigation segments.

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该数据集包含中国第12次北极科学考察(2021年)期间获取的海水溶解氧分析数据，旨在揭示北极部分海域的化学环境特征和垂直分布。数据基于海洋监测规范，使用数显滴定器测量，包括15个站位的剖面数据和52个走航过程数据，以.xls格式提供，共享方式为条件共享。