ORIGINAL RESEARCH article
Front. Mar. Sci.
Sec. Ocean Observation
Volume 12 - 2025 | doi: 10.3389/fmars.2025.1588066
This article is part of the Research TopicRemote Sensing Applications in Marine Ecology Monitoring and Target SensingView all 13 articles
A parameterized model for the real-time reconstruction of underwater sound speed fields in oceanic eddy environment
Provisionally accepted
- 1Tianjin University, Tianjin, Tianjin, China
- 2Department of Navigation Observation and Communication,Naval Submarine Academy, Qingdao, China
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Predicting underwater acoustic propagation is essential in marine acoustic operations, could be significantly affected by oceanic physical phenomena. In this paper, we focus on modeling the impact of oceanic eddies on underwater sound speed fields. We leverage the advantages of satellite remote sensing technology and Argo float data, proposing a parameterized model that considers environmental factors for the real-time reconstruction of underwater sound speed fields during eddy occurrences. The novel model distinguishes between the structures of eddies, categorizing them into eddy regions and environmental regions, thereby effectively preserving the acoustic characteristics of the eddies while accounting for the influence of the surrounding ocean environment on their internal structure. Unlike numerical simulations and in situ observational experiments, our parameterized model only requires surface characteristics of the eddies as input, enabling underwater sound speed field reconstruction to be completed within seconds and significantly enhancing reconstruction efficiency. Moreover, compared to the most commonly used acoustic field reconstruction methods, the proposed model achieves a 6.7% improvement in the accuracy of underwater sound speed reconstruction and a 13.5% improvement in the accuracy of acoustic propagation loss calculations. With its remarkable advantages in both reconstruction efficiency and accuracy, this model shows great potential for practical applications in marine acoustic operations.
Keywords: Parameterized model, environment factor-considering, Oceanic eddy, underwater sound speed fields, three-dimensional structure reconstruction
Received: 05 Mar 2025; Accepted: 24 Jul 2025.
Copyright: © 2025 Xu, Zhang, Sun, Xu, Liu, Chen and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Xuehai Sun, Department of Navigation Observation and Communication,Naval Submarine Academy, Qingdao, China
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