Seabed characterization based on the statistical classification using the seabed reflection amplitudes of sub-bottom profiler data

IF 2.1 3区地球科学 Q2 OCEANOGRAPHY

Continental Shelf Research Pub Date : 2024-07-14 DOI:10.1016/j.csr.2024.105293

Jinhua Luo , Peimin Zhu , Zijian Zhang , Yanling Chen

引用次数: 0

Abstract

The seabed reflection amplitudes (SRAs) extracted from the sub-bottom profile have a strong correlation with the types and physical properties of the seabed sediments. In this paper, the SRAs distribution of classified seabed sediments is statistically obtained by calibration with seabed sampling results, discovering that SRAs on different seafloor sediment types exhibit Rayleigh distributions with varying parameters. Firstly, SRAs are compensated and enhanced, to improve their identification. Then, a novel classification method based on K–S test was proposed. This method measures the maximum distance between the cumulative distribution functions (CDF) of the unknown seabed and the calibrated sediment SRAs to check whether unknown samples belong to any of the known types. This proposed method only requires a small amount of seabed samples to automatically classify the seabed with high accuracy, and the model is simple, robust, and provides classification confidence.

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利用海底剖面仪数据的海底反射振幅进行统计分类，确定海底特征

从海底剖面提取的海底反射振幅（SRAs）与海底沉积物的类型和物理性质密切相关。本文通过对海底采样结果进行校准，统计得到了分类海底沉积物的反射波幅分布，发现不同海底沉积物类型的反射波幅呈现参数不同的瑞利分布。首先，对 SRAs 进行补偿和增强，以提高其识别能力。然后，提出了一种基于 K-S 检验的新型分类方法。该方法测量未知海底累积分布函数（CDF）与校准沉积物 SRA 之间的最大距离，以检查未知样本是否属于任何已知类型。该方法只需少量海床样本，即可自动对海床进行高精度分类，且模型简单、稳健，可提供分类置信度。

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

Continental Shelf Research 地学-海洋学

CiteScore

4.30

自引率

4.30%

发文量

136

审稿时长

6.1 months

期刊介绍： Continental Shelf Research publishes articles dealing with the biological, chemical, geological and physical oceanography of the shallow marine environment, from coastal and estuarine waters out to the shelf break. The continental shelf is a critical environment within the land-ocean continuum, and many processes, functions and problems in the continental shelf are driven by terrestrial inputs transported through the rivers and estuaries to the coastal and continental shelf areas. Manuscripts that deal with these topics must make a clear link to the continental shelf. Examples of research areas include: Physical sedimentology and geomorphology Geochemistry of the coastal ocean (inorganic and organic) Marine environment and anthropogenic effects Interaction of physical dynamics with natural and manmade shoreline features Benthic, phytoplankton and zooplankton ecology Coastal water and sediment quality, and ecosystem health Benthic-pelagic coupling (physical and biogeochemical) Interactions between physical dynamics (waves, currents, mixing, etc.) and biogeochemical cycles Estuarine, coastal and shelf sea modelling and process studies.