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Article

Design and Analysis of a Buoy-Based Cable Seafloor Observatory System Response under Extreme Weather Conditions

1
Hainan Institute, Zhejiang University, Sanya 572025, China
2
Ocean College, Zhejiang University, Zhoushan 316021, China
*
Authors to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2024, 12(6), 889; https://doi.org/10.3390/jmse12060889
Submission received: 1 March 2024 / Revised: 10 May 2024 / Accepted: 16 May 2024 / Published: 27 May 2024
(This article belongs to the Special Issue Analysis and Design of Marine Structures)

Abstract

In order to address the requirements of scientific multidisciplinary observation in diverse small-scale regions, we have introduced the Buoy-based Cable Seafloor Observatory System (BCSOS). This system offers a distinct advantage in contexts where the use of shorter cables is feasible, contrasting with the lengthy cables typically necessary for conventional observatories. The BCSOS consists of three primary components: the Real-Time Electric Communication (RTEC) Buoy, the Power Information Transmission System (PITS), and the Seafloor Observation Subsystem (SOS). The RTEC Buoy is equipped with instruments for measuring sea surface parameters and serves as a data and power hub. The PITS, comprising a robust EM cable, connects the buoy to the SOS, which houses instruments for seafloor observations. The system is designed for a maximum water depth of 100 m and has an expected lifespan of about 5 years. The BCSOS prototypes were deployed at the Huangqi Peninsula, Fujian Province, and successfully documented the process during Typhoon Doksuri (international code 2305) at the end of July 2023. The recorded data from the BCSOS revealed a significant increase in wave height and period as the storm approached the Huangqi Peninsula. Additionally, the RTEC buoy exhibited a notable response to the large waves. The data analysis revealed a distinct pattern between the buoy response and the direction of wave propagation across various sea conditions, that the buoy’s angular movement in pitch and roll directions follows a regular elliptical distribution corresponding to different wave propagation directions. Upon thorough evaluation, future enhancements to the system are slated to concentrate on refining its design, with a particular emphasis on bolstering stability and enhancing corrosion resistance. These improvements are aimed at cementing the system’s long-term viability and performance within the challenging marine environment.
Keywords: buoy response; typhoon doksuri; cable seafloor observatory; ocean multidisciplinary observation; wave propagation buoy response; typhoon doksuri; cable seafloor observatory; ocean multidisciplinary observation; wave propagation

Share and Cite

MDPI and ACS Style

Zhou, W.; Li, Y.; Zhang, Y.; Jiang, Q.; Chen, D.; Gu, Y.; Lin, Y. Design and Analysis of a Buoy-Based Cable Seafloor Observatory System Response under Extreme Weather Conditions. J. Mar. Sci. Eng. 2024, 12, 889. https://doi.org/10.3390/jmse12060889

AMA Style

Zhou W, Li Y, Zhang Y, Jiang Q, Chen D, Gu Y, Lin Y. Design and Analysis of a Buoy-Based Cable Seafloor Observatory System Response under Extreme Weather Conditions. Journal of Marine Science and Engineering. 2024; 12(6):889. https://doi.org/10.3390/jmse12060889

Chicago/Turabian Style

Zhou, Wenjie, Yanjun Li, Yulu Zhang, Qingyan Jiang, Dong Chen, Yanzhen Gu, and Yuan Lin. 2024. "Design and Analysis of a Buoy-Based Cable Seafloor Observatory System Response under Extreme Weather Conditions" Journal of Marine Science and Engineering 12, no. 6: 889. https://doi.org/10.3390/jmse12060889

APA Style

Zhou, W., Li, Y., Zhang, Y., Jiang, Q., Chen, D., Gu, Y., & Lin, Y. (2024). Design and Analysis of a Buoy-Based Cable Seafloor Observatory System Response under Extreme Weather Conditions. Journal of Marine Science and Engineering, 12(6), 889. https://doi.org/10.3390/jmse12060889

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