RV Investigator Voyage IN2024_V01 CTD Data

This record describes the Conductivity-Temperature-Depth (CTD) data collected from the Marine National Facility RV Investigator voyage IN2024_V01, titled: "Multidisciplinary Investigations of the Southern Ocean (MISO): Linking Physics, Biochemistry, Plankton, Aerosols, Clouds, And Climate." The voyage took place between January 2 and March 5, 2024 departing from Hobart (TAS) and returning to Freemantle (WA)Data for 103 CTD deployments were acquired using the Sea-Bird SBE9+V2 CTD unit #24 (S/N 1354), fitted with 36 twelve-litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO-supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values. The final conductivity calibration was based on a single deployment grouping. The final calibration from the primary sensor had a standard deviation (SD) of 0.0012679 PSU, within our target of ‘better than 0.002 PSU’. The standard product of 1-decibar binned averages were produced using data from the primary sensors.The dissolved oxygen data (primary) calibration fit had a SD of 0.94146 (Casts: 1-52) and 0.94773 (Casts: 53-103) μM. The agreement between the CTD and bottle data was good. Additional sensors include: Altimeter (Tritech PA500), Transmissometer (Wetlabs C-Star ), CDOM,Chlorophyll-a, Scattering (Wetlabs ECO FLCDRTD) were installed on the auxiliary A/D channels of the CTD.The collected data were subsequently processed (quality-controlled), and archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC). Additional information regarding this dataset may be contained in the Voyage Summary and the CTD Data Processing Report.

本记录描述了从澳大利亚海洋国家设施"调查者号"（RV Investigator）航次IN2024_V01采集的温盐深（Conductivity-Temperature-Depth, CTD）数据，航次主题为"南大洋多学科调查（MISO）：连接物理、生物化学、浮游生物、气溶胶、云与气候"。本次航次于2024年1月2日至3月5日开展，从塔斯马尼亚州霍巴特起航，最终返回西澳大利亚州弗里曼特尔。本次共完成103次CTD投放，所用设备为Sea-Bird SBE9+V2型CTD设备#24（序列号1354），其采水挂架搭载36个12升采水器。采用Sea-Bird提供的校准因子计算压力与初始电导率值，温度数据则使用澳大利亚联邦科学与工业研究组织（CSIRO）提供的校准方案进行校正。数据经过自动化质量控制（Quality Control, QC）流程，以剔除尖峰信号与超限值。最终电导率校准基于单次投放组开展，主传感器的最终校准标准差（SD）为0.0012679 PSU，符合我们"优于0.002 PSU"的精度目标。基于主传感器数据生成了1分巴（1-decibar）分箱平均的标准产品。溶解氧数据（主传感器）的校准拟合标准差在1-52次投放中为0.94146 μM，53-103次投放中为0.94773 μM。CTD数据与采水瓶数据的一致性良好。本次部署的附加传感器包括：Tritech PA500型高度计、Wetlabs C-Star型透射计、有色溶解有机物（Colored Dissolved Organic Matter, CDOM）传感器、叶绿素a传感器以及Wetlabs ECO FLCDRTD型散射传感器，上述传感器均安装于CTD的辅助A/D通道。采集所得数据随后经过处理（质量控制），并由CSIRO国家收藏与海洋基础设施（NCMI）信息与数据中心（IDC）完成归档。本数据集的更多相关信息可参见航次摘要及CTD数据处理报告。