联合WOA2018温盐模型及实测温盐资料重构全深度声速剖面(一):需求论证及技术方案  

Reconstruction the Full-depth Sound Speed Profile with World Ocean Atlas 2018 and in-situ Temperature and Salinity in Sea Water,Part Ⅰ:Requirement Demonstration and Technology Proposal

作　　者：黄辰虎 张卫东[3] 张乾隆 王川 申家双[2] 陆秀平[2] 黄贤源[2] 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)

机构地区：[1]国防科技大学智能科学学院,湖南长沙410073 [2]92859部队,天津300061 [3]军委联合参谋部战场环境体系论证中心,北京100089 [4]92150部队,浙江舟山316000

出　　处：《海洋测绘》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)。

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.

关 键 词：海底地形 水深测量 温度剖面 盐度剖面 声速剖面 

分 类 号：P229[天文地球—大地测量学与测量工程]