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首页> 外文会议>International Conference on Offshore Mechanics and Arctic Engineering, Jun 23-28, 2002, Oslo, Norway >Laboratory Study of ADCP Wave Measurements
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Laboratory Study of ADCP Wave Measurements

机译：ADCP波测量的实验室研究

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摘要

The National Ocean Service (NOS) collects real-time environmental data to support mission activities including navigation safety, coastal hazard mitigation, and coastal resource management. Near shore wave information is important for these activities and is of growing interest to marine user groups. Acoustic Doppler current profiler (ADCP) are a primary tool for NOS current measurement programs. Recent technology development has added wave measurement capability to these instruments and provided a convenient way for wave monitoring. However, only limited field comparative studies have been conducted. The need to further understand the performance of these instruments and their operation requirements exists. Tests under controlled laboratory conditions offer certain advantages over field intercomparisons including reduced measurement uncertainties, isolation of variables, and is generally cost effective. This paper describes the study of wave measurement performance of a RDI 1200 KHz ADCP in a wave basin with prescribed waves consist of regular, irregular, and multi-directional waves. The steepness and peak energy frequency for each type of waves, and the orientation of ADCP acoustic beams relative to incident waves were varied. A Linear Array of five ultrasonic sensors and a SonTek 5 MHZ ADVOcean instrument were used to provide reference for intercomparison. The ADCP shows good measurement resolutions and agrees well with the reference measurements.
机译：国家海洋局（NOS）收集实时环境数据，以支持包括航行安全，减轻海岸带灾害和海岸带资源管理在内的任务活动。近岸海浪信息对于这些活动很重要，并且对海洋用户群越来越感兴趣。声学多普勒电流剖面仪（ADCP）是NOS电流测量程序的主要工具。最近的技术发展为这些仪器增加了波浪测量功能，并为波浪监测提供了方便的方法。但是，仅进行了有限的现场比较研究。存在进一步了解这些仪器的性能及其操作要求的需求。在受控实验室条件下进行测试提供了优于现场比较的某些优势，包括降低了测量不确定性，隔离了变量，并且通常具有成本效益。本文介绍了在规定波由规则波，不规则波和多向波组成的流域中，RDI 1200 KHz ADCP的波测量性能的研究。每种类型的波的陡度和峰值能量频率，以及ADCP声束相对于入射波的方向都不同。使用五个超声波传感器的线性阵列和SonTek 5 MHZ ADVOcean仪器为进行比较提供参考。 ADCP显示出良好的测量分辨率，并且与参考测量结果非常吻合。

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