摘要
海洋环境中温盐度剖面在时间和空间上复杂多变,造成海水中声波传播的速度剖面也具有同样特点。对海洋测绘领域中获取全深度声速剖面的技术难点、制约精度因素和影响结果进行了分析,设计了利用历史温盐信息并结合不同类型设备观测的温盐资料重构全深度声速剖面的技术方案,提出了对工作深度临界点处的温盐模型值应施加约束和控制,以提高声速预测值的精度。
Accurate and cost efficient sound speed profile is very important for hydrographic surveying.Temperature and Salinity in sea water are complicated in time and space,and so are the sound speed profiles.The technical difficulties of obtaining the full-depth sound speed profile,the factors restricting the accuracy and the results are analyzed in this paper.The specific technical scheme of reconstructing the full-depth sound speed profile in sea water by using historical temperature and salinity and in-situ data observed by different types of equipment is designed.In order to improve the prediction accuracy of sound speed,it is proposed to control the model value at the critical point of depth.
作者
黄辰虎
张卫东
张乾隆
王川
申家双
陆秀平
黄贤源
HUANG Chenhu;ZHANG Weidong;ZHANG Qianlong;WANG Chuan;SHEN Jiashuang;LU Xiuping;HUANG Xianyuan(College of Artificial Intelligence,National University of Defense Technology,Changsha 410073,China;92859 Troops,Tianjin 300061,China;Demonstration Center for Battlefield Environment System,Joint Staff of the CMC,Beijing 100089,China;91250 Troops,Zhoushan 316000,China)
出处
《海洋测绘》
CSCD
2020年第1期24-29,共6页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41974005,41876103)。
关键词
海底地形
水深测量
温度剖面
盐度剖面
声速剖面
seafloor topography
bathymetric surveying
temperature profile
salinity profile
sound speed profile
作者简介
黄辰虎(1979-),男,山西新绛人,高级工程师,博士研究生,主要从事海底地形测量数据处理以及海洋潮汐、海水声速的分析及预报研究。
