地质科技通报2026，Vol.45Issue(3)：59-70,12.DOI:10.19509/j.cnki.dzkq.tb20250015
基于分布式声波传感的潮汐作用下海浪冲击规律研究
Study on wave impact patterns under tidal influence based on distributed acoustic sensing
摘要
Abstract
[Objective]Wave impact under tidal influence is a critical factor affecting coastal erosion.However,studies focusing on the independent effects of tidal characteristics on wave impact remain relatively limited.This study aims to quantitatively analyze wave impact intensity under tidal influence and its relationship with tidal characteristics and topography,providing a scientific basis for research on coastal erosion mechanisms and the design of coastal protection engineering.[Methods]Using distributed acoustic sensing(DAS)technology,the wave impact processes along the northern coast of Zhairuoshan Island,Zhoushan,Zhejiang Province were effectively monitored for 21 days.A 160-meter fiber-optic sensing cable was deployed for DAS measurements,and the dynamic patterns of wave impact under tidal influence were analyzed by integrating power spectral density(PSD)energy and tidal data.[Results]The results showed that tidal height,tidal intensity,and topographic features collectively affected the intensity and distribution of wave impact.During the observation period,wave impact intensity showed consistency with tidal intensity variations.Wave impact was most significant during spring tides,particularly when high-tide levels exceeded a specific threshold,and the impact was significantly enhanced.During intermediate tides,wave impact exhibited multi-stage and multi-peak characteristics.In contrast,wave impact during neap tides was relatively weak and mainly concentrated during the ebb tide phase.In addition,topographic features significantly regulated the spatial distribution of wave impact.The eastern coast experienced prolonged impact due to extended tidal duration,while concave areas exhibited weaker impact due to wave cancellation induced by tidal currents.[Conclusion]This study verifies the effectiveness of DAS technology in monitoring wave impact patterns under tidal influence,reveals the synergistic regulation mechanisms of tidal characteristics and topographic factors on wave impact,and provides important data support for a deeper understanding of wave impact dynamics and optimization of coastal protection strategies.关键词
潮汐/海浪冲击/分布式声波传感(DAS)/功率谱密度(PSD)/地质灾害监测/海岸防护Key words
tides/wave impact/distributed acoustic sensing(DAS)/power spectral density(PSD)/monitoring of geological hazards/coastal protection分类
海洋科学引用本文复制引用
程琛,唐振宇,谭道远,王静,于洋,朱鸿鹄,苏晶文..基于分布式声波传感的潮汐作用下海浪冲击规律研究[J].地质科技通报,2026,45(3):59-70,12.基金项目
自然资源部地裂缝地质灾害重点实验室开放基金项目(JSDDYHJD2024007) （JSDDYHJD2024007）
江苏省基础研究计划自然科学基金青年基金项目(BK20241211) （BK20241211）
国家自然科学基金青年项目(42407250) （42407250）
