Processed underway Thermosalinograph (TSG) observations from the Algoa Voyage 271, March 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 08 March and 15 March 2021, during Voyage 271 on the RS Algoa. 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).

本报告展示了在2021年3月8日至15日期间，于RS Algoa号271次航程中收集的6秒分辨率处理后的Thermosalinograph（TSG）数据。采用SeaBird SBE45 TSG设备，在科研与监测航次中，随机收集近表层水温及电导率测量数据。水体从船体内部的水箱入口处连续泵送至TSG，观测数据与导航信息实时接口。靠近入口处的温度传感器提供了进水温度的测量值（T1）。通过电导率测量值（C）准确计算水族细胞内部水温（T2），从而确定盐度（S）。