RV Investigator Voyage IN2018_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 IN2018_V05, titled: "How does a standing meander southeast of Tasmania brake the Antarctic Circumpolar Current?" The voyage took place from Hobart (TAS) to Hobart between October 16 and November 16, 2018.

Data for 10 deployments were acquired using the Seabird SBE911 CTD 25 over 33 separate legs or sections. Sea-Bird-supplied calibration factors and CSIRO supplied calibrations were used to compute the pressures, conductivity and temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.

Dissolved oxygen sensors, a Transmissometer and a Cosine Photosynthetically Active Radiation (PAR) sensor were also installed on the auxiliary A/D channels of the CTD. In addition to the auxiliary channels, ECO Triplet, Nitrate, Fluorescence and LOPC were mounted on the Triaxus as attached payloads.

The standard product of 1 decibar/10 second binned averaged were produced using data from the primary sensors to produce an along-track time-series dataset. Vertical casts with interpolated values from the along the track using this binned data was also produced with a search distance of 2 casts. This generated the vertical cast and along-track section data products for each Triaxus tow.

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.

本记录描述了在Investigator号航行IN2018_V05中，通过拖曳式TRIAXUS平台（TRIAXUS platform）收集的数据集，包括CTD（CTD）、溶解氧、透射仪（Transmissometer）、余弦光合有效辐射（PAR）、ECO Triplet（ECO Triplet）、硝酸盐、荧光及LOPC（LOPC）。该航行的标题为《塔斯马尼亚东南部的驻波曲流如何减缓南极绕极流？》，于2018年10月16日至11月16日期间从霍巴特（TAS）出发并返回霍巴特。

通过Seabird SBE911 CTD25仪器在33个独立分段中获取了10次部署的数据。利用Sea-Bird提供的校准因子及CSIRO提供的校准数据计算压力、电导率和温度数据，并对数据进行自动质量控制（QC）以去除尖峰信号和超范围值。

溶解氧传感器、透射仪（Transmissometer）及余弦光合有效辐射（PAR）传感器亦安装于CTD的辅助A/D通道。除辅助通道外，ECO Triplet（ECO Triplet）、硝酸盐、荧光及LOPC（LOPC）作为附加载荷安装在Triaxus平台上。

利用主传感器数据生成1分巴/10秒分箱平均的标准产品，形成沿航迹时间序列数据集。同时，以2次剖面为搜索距离，利用该分箱数据对沿航迹数据进行插值，生成垂直剖面数据。这为每次Triaxus拖曳生成了垂直剖面及沿航迹分段数据产品。

收集的数据随后存档于霍巴特的CSIRO海洋与大气（O&A）信息与数据中心（IDC）。

关于本数据集的更多信息可参见航行总结及数据处理报告。