RV Investigator Voyage IN2019_V05 Triaxus (undulating CTD) Data

This record describes the data (CTD, Dissolved Oxygen, Transmissometer, PAR, ECO Triplet, Nitrate, Fluorescence and LOPC) collected using the towed TRIAXUS platform on Investigator voyage IN2019_V05, titled: "Integrated Marine Observing System: monitoring of East Australian Current property transports at 27 degrees South." The voyage took place between September 9 and September 29, 2019 departing from Brisbane (QLD) and arriving in Brisbane.

Data for 6 Triaxus deployments were acquired using Seabird’s Seasave acquisition software using the Seabird SBE911+ CTD 23. O&A Calibration lab supplied calibration factors were used to compute the pressure, preliminary conductivity, oxygen and temperature values. The data was subjected to automated QC to remove spikes and out-of-range values.

A Biospherical QCP2300-HP PAR, and a WetLabs C-STAR Transmissometer sensors were also installed on the auxiliary A/D channels of the CTD. In addition to the auxiliary channels an ECO Triplet and LOPC were mounted on the Triaxus as attached payloads.

The standard data product (1 decibar/10 second binned averaged) was produced using data from the primary sensors to produce an along-track time-series dataset for each data recording file. These files were grouped into sections containing each Triaxus deployment and in each deployment, vertical casts were created with interpolated values from the along-track time-series binned dataset with a maximum interpolation distance of 1 cast. These generated the along-track and vertical cast section data products for each Triaxus deployment.

All deployments except for 3 were along the mooring line transect. Throughout the voyage there were some issues with the Triaxus vehicle. Communication loss with the Triaxus ended Deployment 1 early, requiring re-termination. Deployment 5 also suffered communication loss, ending acquisition early. The Primary SBE43 Oxygen sensor was swapped out after deployment 3 due to increased noise in sensor readings.

The collected data were subsequently archived within the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart.

Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.

本记录描述了“探索者”号（Investigator）科考船航次IN2019_V05期间，采用拖曳式TRIAXUS平台采集的观测数据，涵盖CTD、溶解氧（Dissolved Oxygen）、透射率仪（Transmissometer）、光合有效辐射（PAR）、ECO Triplet、硝酸盐（Nitrate）、荧光（Fluorescence）及LOPC数据，本次航次的研究主题为“综合海洋观测系统：南纬27度东澳大利亚海流属性输运监测”。本次航次于2019年9月9日至9月29日实施，从布里斯班（昆士兰州，QLD）起航并最终返回布里斯班。

本航次共完成6次TRIAXUS布放任务，数据采集采用海鸟（Seabird）公司的Seasave采集软件，配套使用Seabird SBE911+ CTD 23设备。数据处理阶段采用O&A校准实验室提供的校准系数，计算得到压力、初始电导率、溶解氧及温度数值。随后对全部数据开展自动化质量控制（QC），以剔除尖峰噪声与超限值。

此外，Biospherical QCP2300-HP型光合有效辐射传感器（PAR）与WetLabs C-STAR型透射率仪被安装于CTD的辅助模数转换（A/D）通道。除上述辅助通道外，TRIAXUS平台还搭载了ECO Triplet与LOPC作为附加科学载荷。

标准数据产品按1分巴/10秒分箱平均规则生成，以主传感器数据为基础，为每个数据记录文件生成沿轨迹时间序列数据集。随后将所有文件按TRIAXUS布放任务分组，在每个布放任务中，基于沿轨迹时间序列分箱数据集，以最大插值距离为1个剖面的规则生成插值垂直剖面数据，最终得到每个TRIAXUS布放任务对应的沿轨迹与垂直剖面分段数据产品。

除第3次布放外，其余所有布放任务均沿锚系断面开展。本次航次期间TRIAXUS平台出现若干故障：与平台的通信中断导致第1次布放提前终止，需重新终止任务流程；第5次布放同样遭遇通信中断，致使数据采集提前结束。由于传感器读数噪声显著增大，第3次布放完成后更换了主SBE43溶解氧传感器。

采集得到的全部数据最终归档于位于霍巴特的澳大利亚联邦科学与工业研究组织（CSIRO）海洋与大气（O&A）信息与数据中心（IDC）。

有关本数据集的更多详细信息可参阅航次总结报告与数据处理报告。