CAJ | 학술논문

针对海洋中尺度涡对水声传播的影响，利用中尺度涡区的历史水文实测数据提取涡旋强度，空间尺度等中尺度涡特征参数，建立了海洋中尺度涡理论计算模型。运用MMPE水下声场模型仿真试验研究了涡旋性质、强度和位置、声源频率和置放深度对声传播特性的影响。结果表明：暖涡使得会聚区的位置“后退”，会聚区宽度增加；冷涡使得会聚区的位置“前移”，会聚区宽度减小。涡旋的强度越大，“前移”或“回退”的效应越显著。
침대해양중척도와대수성전파적영향，이용중척도와구적역사수문실측수거제취와선강도，공간척도등중척도와특정삼수，건립료해양중척도와이론계산모형。운용MMPE수하성장모형방진시험연구료와선성질、강도화위치、성원빈솔화치방심도대성전파특성적영향。결과표명：난와사득회취구적위치“후퇴”，회취구관도증가；랭와사득회취구적위치“전이”，회취구관도감소。와선적강도월대，“전이”혹“회퇴”적효응월현저。
Aiming at the influence of ocean mesoscale eddy on underwater acoustic propagation, a theoretical computation model of ocean mesoscale eddy was established based on the in-situ hydrographic data in the sea area of ocean mesoscale eddy. An underwater acoustic modeI-MMPE was used to simulate the acoustic propagation under the influence of different types, different intensities and positions of eddies, and different frequencies and depths of sources. It is found that warm-core eddy can make the convergence zone ＂move back＂ and the width of it increases, while cold-core eddy can make the convergence zone ＂move forward＂ and the width of it decreases. The bigger the intensity of eddy, the more notable the ＂forward ＂or ＂back ＂effect. Sound source located depths and source frequencies can change the acoustic propagation characteristics in the eddy area.