Abstract
AbstractDirectional spreading of ocean waves plays an important role in various aspects of ocean engineering, such as wave-induced loads, nonlinear wave evolution, and wave breaking. Wave following buoys, which are widely deployed across the oceans, offer the potential to measure directional wave properties. To assess the accuracy of directional spreading estimates made using buoy measurements, we compared estimates based on experimentally obtained buoy and wave gauge measurements, first presented in McAllister and van den Bremer (J Phys Oceanogr 50:399–414, 2020) Buoy and gauge measurements were recorded at the same locations and in identical sea states, allowing for a like-for-like comparison. We examine experiments with both following (unimodal in direction) and crossing (bimodal in direction) sea states. In addition to this, we use synthetic wave data to investigate the effects of wave generation and nonlinearity on spreading estimates. Our results show that while directional estimates produced using buoy measurements are reasonably accurate in following sea states, they struggle to identify distinct directional peaks in crossing sea states. We find that spreading estimates made using buoy measurements tend to underestimate the degree of directional spreading by approximately $$9-14\%$$
9
-
14
%
in following sea states, which is most apparent in narrowly spread conditions.
Publisher
Springer Science and Business Media LLC
Subject
Ocean Engineering,Energy Engineering and Power Technology,Water Science and Technology,Renewable Energy, Sustainability and the Environment
Reference38 articles.
1. Adcock TAA, Taylor PH (2009) Estimating ocean wave directional spreading from an Eulerian surface elevation time history. Proc R Soc A 465(2111):3361–3381. https://doi.org/10.1098/rspa.2009.0031
2. Akaike H (1998) Information theory and an extension of the maximum likelihood principle. In: Selected Papers of Hirotugu Akaike. Springer, New York, pp 199–213. https://doi.org/10.1007/978-1-4612-1694-0_15
3. Benoit M, Frigaard P, Schäffer HA (1997) Analyzing multidirectional wave spectra: a tentative classification of available methods. In: Proc. IAHR Seminar on Multidirectional Waves and their Interactions with Structures, San-Francisco (CA, USA), pp 131–158
4. Benoit M, Teisson C (1994) Laboratory comparison of directional wave measurement systems and analysis techniques. In: Proc. 24th Int. Conf. Coastal Eng. (ICCE 1994), 23–28 October 1994, Kobe (Japan), pp 42–56. https://doi.org/10.1061/9780784400890.004
5. Benoit M (1993) Extensive comparison of directional wave analysis methods from gauge array data. In: Proc. 2nd Int. Conf. on Ocean Wave Measurement and Analysis (WAVES’1993), New- Orleans (Louisiana, USA), pp 740–754
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献