Processed underway Thermosalinograph (TSG) observations from the Cape Canyon Exploration Cruise on Algoa Voyage 247, March 2018

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 05 March and 28 March 2018 during the Cape Canyon Exploration Cruise on the RS Algoa Voyage 247. A SeaBird SBE45 TSG is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

本报告呈现了于2018年3月5日至3月28日期间，在RS Algoa航次247的开普峡谷探险巡航中，以6秒分辨率处理得到的Thermosalinograph（TSG）数据。在研究及监测巡航期间，利用SeaBird SBE45 TSG设备随机采集近表层温度及电导率测量数据。海水从船体壳体中的进水口连续泵送至TSG，观测数据与导航信息持续进行接口对接。位于进水口附近的温度传感器提供了入水温度（T1）的测量数据。通过电导率测量（C）准确计算水样内部电导池的温度（T2），进而得出盐度（S）。