Raw underway Thermosalinograph (TSG) observations from the Algoa Voyage 269, October 2020

A SeaBird SBE45 Thermosalinograph (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). Here we present the 6-second resolution raw TSG data collected between 03 October 2020 and 16 October 2020, during Voyage 269 on the Algoa.

本研究采用SeaBird SBE45热盐仪（TSG）在研究及监测巡航期间，偶然性地收集近表层水温及电导率测量数据。水从位于船体水线处的进口持续泵送至TSG，观测数据与导航信息实时接口。接近进口的温度传感器提供了入水温度（T1）的测量值。通过电导率测量（C）精确计算水在电导池内的温度（T2），从而得到盐度（S）。在此，我们展示了2020年10月3日至10月16日，在Algoa号269航次期间收集的6秒分辨率原始TSG数据。