摘要
海水声速是多波束测深系统进行水深测量的基本参数之一 ,声速剖面正确与否直接影响测量结果的精度和可靠性。声速校正为多波束测深系统提供了正确的声速剖面 ,根据声速剖面垂向上的变化规律 ,对原始声速数据进行科学采点 ,运用软件方法或实验方法对声速剖面进行编辑获得声速数据 ,最终取得合理可靠的水深值。这里对南海 SA12试验区采集的声速资料进行了分析 ,以 Sea Beam2 10 0多波束测深系统为例 ,对声速校正的技术方法进行了探讨。
Acoustic velocity of seawater is one of the basic parameters that must be used in multibeam echo sounding system when carrying out surveys.The precision and reliability of survey results depend upon the accuracy of acoustic velocity profile.In this paper,mechanism that acoustic velocity influences multibeam sounding is explained,and according to the analysis of acoustic velocity data collected from Block SA12 in the South China Sea,the technical method of acoustic velocity correction is discussed by making use of an example of SeaBeam 2100 multibeam bathymetric sonar system.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2000年第4期109-114,共6页
Marine Geology & Quaternary Geology
基金
国家 8 6 3计划资助项目!(82 0 -0 10 10 1)
