改进波浪浮标的电流测量:一个成功的五年合作开发项目的结果

W. D. Wilson, D. Velasco, Dan Shumuk, L. Fiorentino, Robert Heitesenrether
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引用次数: 0

摘要

由于缺乏对安装在动态表面平台(metoocean或波浪浮标)上的仪器的声流剖面的准确性的详细分析,作者和同事们在2014年开始研究这个问题。安装在球形波浪浮标上的ADCP的初步测试显示,与多个底部安装的波浪/电流剖面仪相比,误差很大。我们启动了测试、分析、报告和仪器改进的循环,并在2015-2016年、2017-2018年和2018-2019年进行了后续测试部署。在之前的海洋会议和其他技术研讨会(IEEE CWTM, MTS浮标研讨会)上详细报道了前三项研究的结果。参考文献[1]-[5]这一过程导致了波浪/洋流浮标设计(AXYS TRIAXYS)和浮标集成的洋流剖面仪性能(NORTEK Signature AD2CP with AHRS)的逐步改进。该集成平台于2018年12月至2019年3月在测试条件下进行了部署。初步比较表明,改进后的浮标型水流剖面与底部安装剖面的精确匹配程度远远好于以前的版本(在测试条件下,12-25 m深度,$0-2\ \boldsymbol{m}/\boldsymbol{s}}, > 1\boldsymbol{m}/\boldsymbol{s}$具有显著垂直剪切的水流)。在这里,我们介绍了2018-2019年部署的结果和分析,其中包括两个TRIAXYS浮标(带有中央剖面仪安装和NORTEK Signature的新设计,带有NORTEK Aquadopp的较旧偏移剖面仪设计)和附近的NORTEK AWAC电流/波浪剖面仪。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improving Current Measurements from Wave Buoys: Results from a Successful Five-Year Collaborative Development Project
Recognizing that detailed analyses of the accuracy of acoustic current profiles from instruments mounted on dynamic surface platforms (MetOcean or wave buoys) were lacking, the authors and colleagues began studying the issue in 2014. Initial testing with an ADCP mounted on a spherical wave buoy showed significant errors when compared with multiple bottom-mounted wave/current profilers. We initiated a repeated cycle of testing, analysis, reporting, and instrument improvement, with subsequent test deployments in 2015-2016, 2017-2018, and 2018-2019. Results from the first three of these have been reported in detail at previous OCEANS conferences and other technical workshops (IEEE CWTM, MTS Buoy Workshops) – see References [1]–[5] The process has led to evolutionary improvements to both the wave/current buoy design (AXYS TRIAXYS) and current profiler performance for buoy integration (NORTEK Signature AD2CP with AHRS). The resulting integrated platform was deployed under test conditions from December 2018 – March 2019. Preliminary comparisons show that the improvements have resulted in buoy-based current profiles that accurately match bottom-mounted profiles far better than previous versions (under the test conditions, 12-25 m depths, $0-2\ \boldsymbol{m\ H_{s}}, > 1\boldsymbol{m}/\boldsymbol{s}$ currents with significant vertical shear). Here we present results and analyses of the 2018-2019 deployments, which consisted of two TRIAXYS buoys (new design with central profiler mount and NORTEK Signature, an older offset profiler design with a NORTEK Aquadopp), and a nearby NORTEK AWAC current/wave profiler.
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