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Mapping Knowledge Structure and Research Frontiers of Underwater Acoustic Tomography: A Scientometric Study
Abstract
Context. Underwater Acoustic Tomography (UAT) is a powerful tool for monitoring oceans, seas, and inland waters. Aims: This study presents a scientometric analysis of UAT and examines future research trends. Methods: A comprehensive analysis of 449 Scopus-indexed publications across 135 journals from 1979 to 2023 was conducted to provide an in-depth examination of UAT. Results: More than 760 researchers from 18 countries have contributed to UAT research, resulting in approximately 40 distinct applications (e.g., four-dimensional (3D + time) measurement of sound speed, temperature, and flow velocity, as well as the localization of autonomous underwater vehicles). The Journal of the Acoustical Society of America accounts for nearly 30% of these publications. Four major organizations have provided around 80% of the funding for the UAT research: the U.S. Office of Naval Research (31%), the National Natural Science Foundation of China (25%), the Japan Society for the Promotion of Science (13%), and the Russian Foundation for Basic Research (11%). Conclusions: Despite its unique capabilities, UAT technique still faces significant challenges to widespread adoption. Implications: Overcoming obstacles such as mass production, the development of high-frequency systems (exceeding 60 kHz) for laboratory-scale experiments, and the creation of user-friendly software is essential for advancing UAT technology.
MF24007 Accepted 03 December 2024
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