JS3_CALL_1_REF_4036b_EuroFluoro - Field testing and validation of a new multiparameter sensor in European Coastal waters 2

The project encountered several problems. In the first place COVID restrictions and procurement issues delayed the build of the sensors, delaying the deployment until the end of the summer (August 2021) rather than spring as intended. Following on from this, travel restrictions, both government imposed and company policy concerning COVID prevented anyone from Chelsea Technologies from visiting the host at any stage in the process. The second problem was only realised towards the end of the deployment. The sensor stopped responding at the end of November. The next available window to raise the subsea frame coincided with the end of the deployment so it was not possible to fix or replace the sensor. On raising the sensor and the control housing it became apparent that significant corrosion had occurred around the windows, raising severe doubts about the validity of the collected data.

本项目在推进过程中遭遇了多项问题。首先，受新冠疫情防控限制与采购问题影响，传感器的制造进度出现延误，导致部署工作从原计划的春季推迟至2021年夏末（2021年8月）。紧随其后的另一项阻碍是，受新冠疫情相关的政府管控措施及企业差旅政策约束，切尔西技术公司（Chelsea Technologies）的全体相关人员在项目全流程中均无法到访合作方驻地。第二个问题直至部署阶段末期才被察觉：传感器于11月底停止响应。此时，下一次可回收水下框架的窗口期恰好与部署收尾阶段重合，因此无法对传感器进行维修或更换。待回收传感器与控制舱后，可见其视窗周围已发生严重腐蚀，这使得本次采集到的数据的有效性受到严重质疑。