Conductivity, temperature, pressure, and dissolved oxygen data observed by Umitaka-Maru cruise during the year of 2011-2019.

This is a conductivity, temperature, pressure, and dissolved oxygen dataset obtained by Umitaka-Maru cruise during the year of 2011-2019. For the purpose of analysing long term variability, only the data observed along 110E and 115E are selected. Also, only the data observed in the region south of 57S, where the spacial density of observation increases, are selected. All the data were observed in January. The methodologies for data processing, water sampling, measurements, and data calibration followed the recommendations for the instruments and methods of the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) to the greatest extent possible.本数据集为2011至2019年间由海鹰丸号（Umitaka-Maru）科考航次获取的电导率、温度、压力与溶解氧观测数据集。为开展长期变化特征分析，本数据集仅筛选沿110°E与115°E经度断面获取的观测数据；同时，仅选取57°S以南海域的观测数据——该区域的观测空间密度更高。所有观测数据均采集于1月份。数据处理、水样采集、现场测量及数据校准的方法，均最大程度遵循了全球远洋水文调查计划（Global Ocean Ship-Based Hydrographic Investigation Program，GO-SHIP）针对相关仪器与分析方法制定的规范要求。