Spatial variability of waves within a marine energy site using in-situ measurements and a high resolution spectral wave model

Spatial variability of waves within a marine energy site using in-situ measurements and a high resolution spectral wave model
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使用现场测量和高分辨率光谱波模型研究海洋能源站点内波浪的空间变化

DOI:
10.1016/j.energy.2013.12.065
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发表时间:
2014
期刊:
影响因子:
9
通讯作者:
Ashton I
Ashton I
中科院分区:
工程技术1区
文献类型:
--
作者:
Ashton I

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采用高分辨率光谱波模型,量化了与海洋可再生能源设施场地内变化相关的地理尺度上的空间波气候。首次将结果与四个浮波浮标阵列的原位数据进行了比较,并证明了谱波模型SWAN (simulation WAves Nearshore)解决波浪气候空间差异的能力。对模型源项的检查强调,底部摩擦和折射是导致整个站点所观察到的差异的主要过程。用于海洋可再生能源气候评估的波浪模型通常没有足够的空间分辨率来准确地解决站点内的变异性。该研究表明,嵌套在更大模型域中的高空间分辨率光谱波浪模型有可能提供海洋可再生能源站点波浪条件空间变异性的准确和详细预测。因此,它们可以为波浪能阵列部署提供更准确的资源评估,也可以用于其他海洋能源技术的工程评估。
A high resolution spectral wave model is used to quantify the spatial wave climate on geographical scales relevant to intra-site variability for marine renewable energy installations. For the first time, results are compared to in-situ data from an array of four floating wave buoys, and demonstrate the ability of the spectral wave model SWAN (Simulating WAves Nearshore) to resolve spatial differences in the wave climate. Examination of the model source terms highlights bottom friction and refraction as the primary processes contributing to the observed differences across the site. Wave models for climate assessments for marine renewable energy are not commonly operated at sufficient spatial resolution to accurately resolve intra-site variability. This study demonstrates that high spatial resolution spectral wave models, nested into a larger model domain, have the potential to provide an accurate and detailed prediction of the spatial variability of wave conditions across a marine renewable energy site. As such, they could be implemented to provide a more accurate resource assessment for wave energy array deployments, but also for engineering assessments of other marine energy technologies.
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