中国第12次北极科学考察(2021年)海水总碱度(Talk)分析数据

海水的碱度（Alkalinity）是指海水中弱酸阴离子的浓度，用来衡量海水中弱酸阴离子的含量。海水总碱度由碳酸碱度，硼酸碱度和过剩碱度组成，通常以TA表示。它是一个与质量、盐度类似的具有保守性质的参数，对于天然海水，碳酸碱度通常占总碱度的90%以上，因此总碱度是海水二氧化碳-碳酸盐体系中的重要参数。 2021年中国第12次北极科学考察期间，开展了重点海域海水分水层总碱度(TA)的调查。本数据包括总计15个站位的海水总碱度(TA)分水层数据，水深范围为0-3830m；以及47个走航过程表层水数据。Seawater alkalinity refers to the concentration of weak acid anions in seawater, and is used to quantify the content of such anions. Total alkalinity (TA) of seawater is composed of carbonate alkalinity, borate alkalinity and excess alkalinity, and is commonly abbreviated as TA. It is a conservative parameter similar to mass and salinity. For natural seawater, carbonate alkalinity typically accounts for over 90% of total alkalinity, rendering TA a critical parameter in the seawater carbon dioxide-carbonate system. During the 12th Chinese National Arctic Research Expedition in 2021, surveys of water-column total alkalinity (TA) were conducted in key marine areas. This dataset includes water-column total alkalinity (TA) data from 15 sampling stations, with water depths ranging from 0 to 3830 m, as well as surface water TA data collected during 47 underway cruise segments.

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该数据集包含中国第12次北极科学考察(2021年)期间采集的海水总碱度(TA)分析数据，涉及15个站位的分水层测量（水深0-3830米）和47个走航表层数据，用于研究海洋二氧化碳-碳酸盐体系。数据以.xls格式存储，总大小为44.0KB，属于海洋化学专题，通过条件共享方式提供。