利用浅海的声传播损失反演海面风速  

Sea Surface Wind Speed Inversion Based on Sound Transmission Loss in Shallow Water

作　　者：刘洪宁[1,2] 吕连港[1,2] 杨光兵[1,2] 姜莹[1,2] 杨春梅[1,2] 刘宗伟[1,2] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]海洋环境科学和数值模拟国家海洋局重点实验室,山东青岛266061

出　　处：《海洋科学进展》2015年第2期164-172,共9页Advances in Marine Science

基　　金：国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目--海洋环境动力学和数值模拟(U1406404)

摘　　要：声信号在浅海环境传播时,经过海面风浪的不断散射,传播损失会相应改变。本文通过分析声传播损失计算海面波高,利用风浪充分成长时波高与风速的关系,对海面风速进行反演,并针对声速剖面在有无跃层两种情况下反演过程的异同进行讨论。利用模拟仿真与2013年黄海声传播实验数据对其进行了验证,结果表明此方法是有效的。Surface waves can scatter acoustic signal in the ocean and thus cause a change in sound transmission loss. A new method of inversing wind speed is proposed, in which the wave height is calculated based on sound transmission loss and thus the wind speed is derived through the relationship between the full development of waves and wind speed. The differences in inversion processes with thermocline and without thermocline are also discussed. This method is further verified by numerical simulation and field measurements in the Yellow Sea in 2013 to be effective.

关 键 词：声学反演 传播损失 风速 

分 类 号：P733.2[天文地球—物理海洋学]