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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。
Sound velocity of seawater is one of the basic parameters of water depth measurement in multi-beam sounding system. Whether the sound velocity profile is correct or not has a direct impact on the accuracy and reliability of measurement results. Sound velocity correction provides the correct sound velocity profile for multi-beam sounding system. According to the vertical variation of sound velocity profile, the original sound velocity data is collected in the scientific way and the sound velocity profile is edited by software method or experimental method to get the sound velocity data. Finally, Reasonable and reliable water depth. The sound velocity data collected from the South China Sea SA12 pilot area are analyzed here. Taking the Sea Beam2 10 multi-beam sounding system as an example, the technical methods of sound velocity correction are discussed.