Structure design and implementation of a high stability semi-submersible optical buoy for marine environment observation

Marine optical buoys are recognized as highly effective technical means for obtaining long-term continuous ocean optical observation data for on-orbit ocean color satellite radiometric calibration and remote sensing product validation. The high stability of a buoy's body structure is a crucial factor for marine optical buoys to operate in complex environments, such as in the presence of wind, waves, and currents. In this study, we propose a highly stable self-counterweight transverse-tethered semi-submersible buoy structure achieved through buoy structure design, mooring system design, mechanical analysis and numerical simulation analysis, and transversetethered point analysis. The novel buoy design underwent a marine environment adaptability test, demonstrating an improved ability to resist wind and waves while also greatly reducing the difficulty and cost of design and deployment. In-situ verification showed that the buoy's swing angle was better than +/- 10 degrees under a 3-4 level sea state, meeting marine optical buoy requirements and proving the new buoy design suitable for harsh and complex marine conditions.

Automated summary

Marine optical buoys are an effective tool for obtaining ocean optical observation data, and their stability is crucial for operating in complex environments. We propose a highly stable buoy structure that can withstand harsh marine conditions.