Shore-based terminal of OUC-Raman instrument node for seafloor cabled observatory network

Abstract

The establishment of the seafloor cabled observatory network will help to learn how the ocean operates. This study reports the design of a shore-based terminal for the OUC-Raman (OUC: Ocean University of China) instrument node in an observatory network. Based on Raman spectrometry, it is used to detect radical ion in situ. The shore-based terminal is divided into three main modules: communication module, data management module and user interface. Its functions include data collecting from underwater system, data processing and data transmitting. The terminal worked well and stably during a 40-days' land-based joint trial and sea trials.