哈尔滨工程大学学报2025，Vol.46Issue(10)：2059-2069,11.DOI:10.11990/jheu.202311036
波弗特海冰下声传播模式研究
Sound propagation modes under ice of the Beaufort Sea
摘要
Abstract
This study aims to meet the specific application requirements of underwater detection and communication beneath polar ice covers.For this purpose,this work develops an acoustic propagation model under the ice by utili-zing the ray theory and a model for estimating reflection coefficients of rough elastic sea ice surfaces.Through nu-merical simulations,the sound propagation modes under dual-channel sound speed profiles in the Beaufort Sea are systematically explored.In addition,the sound propagation paths and transmission losses under various source depths in the Beaufort Sea and the central Arctic Ocean are compared,which reveals the formation mechanisms and propagation characteristics of multiple sound propagation modes in the Beaufort Sea.The results indicate that the dual-channel sound speed profile dominates the formation of four typical propagation modes in the Beaufort Sea:the surface duct mode,the convergence zone mode,the Beaufort duct mode,and the seafloor-sea ice reflection mode.The distribution intervals of the grazing angles corresponding to each propagation mode present significant correla-tions with the source depth and the sound speed profile structure.Compared with the central Arctic Ocean,the Beaufort Sea shows lower transmission loss beneath the ice due to the absence of large-scale ice ridges on the sea surface.Moreover,its unique sound channel structure offers favorable conditions for underwater detection and com-munication in polar ice-covered regions.This study provides a theoretical foundation for sound field modeling and the analysis of propagation characteristics in polar underwater environments.关键词
射线/海冰反射系数/声传播模式/波弗特海/波弗特声道/表面声道/会聚区/临界掠射角Key words
ray/ice reflection coefficient/sound propagation mode/Beaufort sea/Beaufort duct/surface duct/convergence zone/critical grazing angle分类
海洋学引用本文复制引用
朱嘉慧,吴金荣,张亦凡,侯倩男,马力..波弗特海冰下声传播模式研究[J].哈尔滨工程大学学报,2025,46(10):2059-2069,11.基金项目
国家自然科学基金项目(11974375). （11974375）
