Physical oceanography and hydrochemistry measurements along ROV-Squid dive M183_30-1 during METEOR cruise M183

A sensor package for measuring and autonomously logging oceanographical parameters was installed on the ROV-Squid during the METEOR research cruise M183. The suite of sensors included an RBR Concerto logger for measurements of pressure, temperature, dissolved O₂ concentration and turbidity, a Pyroscience AquapHOx-LX for measurements of pH and a Trios OPUS nitrate sensor. The duration and frequency of the sampling were defined on every dive in order to have the best sensors performance/battery usage combination. Generally RBR Concerto data were recorded every 10 seconds, pH data every 30 seconds while nitrate data every 5 minutes. Following sensor post-calibration, a maximum pH offset of -0.05 was applied. Nitrate data were processed according to Nehir et al., 2021. While the RBR Concerto logger recorded during the entire dives, data for both the pH and nitrate sensors include bottom time and ROV ascent only.

一套用于测量并自主记录海洋学参数的传感器组件，被安装于ROV-Squid号水下机器人上，随梅特罗号（METEOR）科考航次M183执行科考任务。该传感器套件包含：用于测量压力、温度、溶解氧浓度与浊度的RBR Concerto数据记录仪（RBR Concerto）、用于测量pH值的Pyroscience AquapHOx-LX设备，以及Trios OPUS硝酸盐传感器。采样时长与采样频率将针对每一次潜次单独设定，以达成传感器性能与电池使用效率的最优组合。通常情况下，RBR Concerto数据记录仪每10秒记录一组数据，pH值数据每30秒记录一组，而硝酸盐数据每5分钟记录一组。在传感器完成事后校准后，需施加最大为-0.05的pH偏移量进行修正。硝酸盐数据参照Nehir等人2021年的研究方法进行处理。尽管RBR Concerto数据记录仪会在整个潜次过程中持续记录数据，但pH传感器与硝酸盐传感器的数据仅涵盖坐底时长与ROV-Squid号水下机器人的上浮阶段。