环太平洋国际声学会议（PRUAC）是由美国声学学会、加拿大声学学会、韩国声学学会、中国声学学会、杭州应用声学研究所和浙江大学等联合赞助的一个国际性学术会议。第四届环太平洋国际声学会议的主题是“水下声学与海洋动力学”，主要研讨了（1）水下内波观察与预测，（2）环境不确实性以及与声场的耦合，（3）环境噪声与海洋动力学，（4）声场的动态建模，（5）声层析与海洋参数估计，（6）时反与匹配场处理，（7）水声定位与通信，（8）测量仪器与平台等有关内容。本书（文集）收录了本次会议“水下声学与海洋动力学”方面的20多篇论文。

1 Inference of Sound Attenuation in Marine Sediments from Modal Dispersion in Shallow Water 
2 Counterintuitive Results in Underwater Acoustic Communications 
3 Comparisons of Methods for Numerical Internal Wave Simulation in Long Range Acoustical Propagation 
4 Acoustic Data Assimilation: Concepts and Examples 
5 The Preliminary Results of a Single-Hydrophone Geoacoustic Inversion for Data Collected at the Sea of Japan 
6 Measurements of Ultrasound Attenuation of Suspended Particles with Various Size Distributions 
7 A Low Complexity Multichannel Adaptive Turbo Equalizer for a Large Delay Spread Sparse Underwater Acoustic Channel 
8 A Turbo Equalization Based on a Sparse Doubly Spread Acoustic Channels Estimation 
9 Design and Testing of Underwater Acoustic Communications for an AUV 
10 Research of Axis Mismatches Between Pairs of Sensitive Elements of Underwater Acoustic Velocity Gradient Sensors 
11 A Passive Fathometer Technique for Bottom Profiling Using Ambient Noise 
12 Target Motion Parameter Estimation for LOFARgrams Based on Waveguide Invariants 
13 Source Localization by Maximizing the Longitudinal Correlation Using Waveguide Invariant Theory 
14 Selective Detection and Localization by Decomposition of a Subrank Time Reversal Operator 
15 Sounds of Undersea Gas Leaks 
16 Multi-AUV Localization for an Underwater Acoustic Sensor Network