Raw underway Thermosalinograph (TSG) observations from Algoa Voyage 268, February - March 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 10-second resolution raw TSG data collected, between 25 February 2020 and 04 March 2020, during Voyage 268 on the Algoa.

本研究采用SeaBird公司的SBE45温度盐度计（TSG）在研究及监测航次中，随机收集近表层水温及电导率测量数据。水从船体中的吸入口持续泵送至TSG，观测数据与导航信息持续交互。靠近吸入口的温度传感器提供了进入水流温度（T1）的测量。通过电导率测量（C）准确计算盐度（S）的水中电导率细胞内的水温（T2）。在此，我们展示了在2020年2月25日至3月4日Voyage 268航次期间收集的10秒分辨率的原始TSG数据。