| 过武宏,范培勤,刘敬一,孙雪海,笪良龙.黄海夏季温跃层适应性观测对声传播的影响*[J].,2025,44(4):1083-1090 |
| 黄海夏季温跃层适应性观测对声传播的影响* |
| Influence of adaptive observation information of the summer thermocline on sound propagation in the Yellow Sea |
| 投稿时间：2024-03-05 修订日期：2025-06-30 |
| 中文摘要: |
| 针对黄海夏季冷水团引起的声速跃层预报准确性对水声传播的影响问题，设计了一套针对黄海夏季跃层的适应性观测方案，进行海上试验将获取的适应性观测信息融入数值预报背景场，从而验证适应性观测对跃层预报的有效性，进一步研究探讨适应性观测对提高水声传播预报的影响和水平。结果表明，适应性观测可有效提高黄海夏季温跃层的预报精度，减小声速剖面预报误差，提高了声传播预报水平：500Hz频率时，有明显改善，随着频率增加，改善效果逐渐变弱。该结论可为进一步开展海洋声学适应性观测，深入研究黄海夏季温跃层的声学效应提供物理和技术基础。 |
| 英文摘要: |
| An adaptive observation scheme for summer thermocline in the Yellow Sea was designed to investigate the impact of accurate forecasting of the Yellow Sea summer cold water mass-induced sound speed discontinuity on underwater sound propagation. The adaptive observation information obtained from sea trials was assimilated into numerical forecast background fields to verify the effectiveness of adaptive observations in thermocline prediction, and to study their role and contribution in improving underwater sound propagation forecasts. The results showed that adaptive observations can effectively improve the accuracy of summer thermocline prediction in the Yellow Sea and reduce forecast errors. Significant improvements were observed in sound propagation forecasts at 500 Hz frequency, with the improvement gradually diminishing as the frequency increases. This conclusion provides a basis for further research on marine acoustic adaptive observations and the acoustic effects of the summer thermocline in the Yellow Sea. |
| DOI：10.11684/j.issn.1000-310X.2025.04.029 |
| 中文关键词: 温跃层 适应性观测 水声传播 数据同化 |
| 英文关键词: Thermocline Adaptive observation Underwater sound transmission Data assimilation |
| 基金项目:泰山学者工程 |
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