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首页> 外文期刊>International journal of remote sensing >Validation of in situ wave spectrum with JONSWAP in the Indian Ocean
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Validation of in situ wave spectrum with JONSWAP in the Indian Ocean

机译：JONSWAP在印度洋上对原位波谱的验证

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摘要

The moored data buoys deployed by the National Institute of Ocean Technology (NIOT) are floating platforms designed to carry a specific suit of sensors to measure wave parameters. Waves are measured by the Motion Reference Unit (MRU), which outputs roll, pitch, compass, and heave. These data are recorded at a rate of 1 Hz for 17 minutes every three hours. For this study, wave measurements were carried out at two locations (deep and shallow water) over the same period. The wave spectra were generated from the hard disk data (roll, pitch, heave, and compass) of the moored buoys. A Matrix Laboratory (MATLAB) program was developed for generating the wave spectrum using the hard disk data. The spectrum exhibits significant features for deep- and shallow-water buoys. In a single peak spectrum the dominant peaks are observed at 0.08 and 0.1 Hz and the multi-peak spectrum energy is distributed over a wide range, from 0.05 to 0.25 Hz. The buoy spectra were compared to the Joint North Sea Wave Project (JONSWAP) spectrum in deep- and shallow-water locations in the Bay of Bengal, and also the deep-water buoy spectrum was compared to the wave model (WAM) output spectrum in the Arabian Sea. The JONSWAP spectrum mostly conforms to the buoy spectrum in regard to marine wind conditions.
机译：美国国家海洋技术研究所（NIOT）部署的系泊浮标是浮动平台，旨在携带一套特定的传感器来测量波浪参数。波浪由运动参考单元（MRU）测量，运动参考单元输出横摇，俯仰，罗盘和起伏。这些数据每三个小时以1 Hz的频率记录17分钟。对于本研究，在同一时期在两个位置（深水和浅水）进行了波浪测量。波谱是从系泊浮标的硬盘数据（横摇，俯仰，升沉和罗盘）生成的。开发了矩阵实验室（MATLAB）程序，用于使用硬盘数据生成波谱。该光谱对深水浮标和浅水浮标显示出显着特征。在单峰频谱中，在0.08和0.1 Hz处观察到主峰，并且多峰频谱能量分布在从0.05至0.25 Hz的较宽范围内。在孟加拉湾的深水和浅水位置，将浮标光谱与联合北海波浪计划（JONSWAP）光谱进行了比较，还将深水浮标光谱与在新加坡的波浪模型（WAM）输出光谱进行了比较。阿拉伯海。就海洋风况而言，JONSWAP频谱与浮标频谱基本一致。

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  • 来源
    《International journal of remote sensing》 |2014年第14期|5384-5393|共10页
  • 作者

    J. Vimala; G. Latha; R. Venkatesan;

  • 作者单位

    National Institute of Ocean Technology, Chennai, India,Sathyabama University, Chennai, India;

    National Institute of Ocean Technology, Chennai, India;

    National Institute of Ocean Technology, Chennai, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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