Ultrasonic measurement of oil slick thickness using a remotely operated vehicle (ROV) as a platform in various sea wave states

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2024-11-23 DOI:10.1016/j.marpolbul.2024.117306

Hualong Du, Jing Zhao, Qifeng Zhang, Shuo Li

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引用次数: 0

Abstract

To overcome the difficulty of estimating the oil slick thickness using remote sensing techniques, the feasibility of applying the proposed ultrasonic method for measuring the thickness of the oil slick in open water was experimentally investigated by conducting tests in various sea wave states. The second cross-correlation method was implemented to calculate the time of flight (TOF). The influences of sea waves on measurement accuracy were deeply evaluated by calculating the difference of the average thickness in the sea wave state compared with the average thickness in the calm sea state (no waves). The results showed a high measurement accuracy with a maximum difference ∼17.3%, and most of the tests (10 in 15) had a difference within ±10%. The measurement accuracy was further improved by correcting singular thicknesses caused by the ROV's pitch and roll, and surface waves. The study will advance the development and transition of this method to be implemented in open water.

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利用遥控潜水器（ROV）作为平台，在各种海浪状态下对浮油厚度进行超声波测量

为了克服利用遥感技术估算浮油厚度的困难，通过在各种海浪状态下进行测试，对应用所提出的超声波方法测量开放水域浮油厚度的可行性进行了实验研究。采用二次交叉相关法计算飞行时间（TOF）。通过计算海浪状态下的平均厚度与平静海面（无浪）状态下的平均厚度之差，深入评估了海浪对测量精度的影响。结果表明，测量精度很高，最大差值为 17.3%，大多数测试（15 次中有 10 次）的差值在 ±10% 以内。通过修正由遥控潜水器的俯仰、滚动和表面波引起的奇异厚度，测量精度进一步提高。这项研究将推动该方法的发展和过渡，以便在开放水域中实施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.