Waves and the equilibrium range at Ocean Weather Station P
Waves and the equilibrium range at Ocean Weather Station P
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海洋气象站 P 的波浪和平衡范围
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
A. Shcherbina
中科院分区：
文献类型：
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作者：
J. Thomson;E. D’Asaro;M. Cronin;W. Rogers;R. Harcourt;A. Shcherbina
[1]本文利用P海洋气象站（OWS-P，50° N145 °W）的波浪和风观测资料，对面波能谱的平衡范围进行了估算。观测结果与Philips（1985）所描述的风输入和破断耗散之间的局部平衡相一致。测量包括在OWS-P为期3周的研究巡航期间的直接协方差风应力估计和波浪破碎耗散率估计。使用在OWS-P为期2年的系泊部署期间的波能谱和风速观测，分析扩展到更广泛的条件。在中等风速下（5-15 m/s）时，系泊波谱与标准阻力定律和系泊风测量所隐含的强迫一致，不确定度在5%以内。在高风速（>15 m/s）时，系泊波浪谱相对于标准阻力定律和系泊风测量值所暗示的强迫偏低13%。偏离平衡与方向性和涌浪频率的变化有关。谱波后报准确地再现了系泊观测，并用于检查风输入。
[1] Wave and wind measurements at Ocean Weather Station P (OWS-P, 50°N 145°W) are used to evaluate the equilibrium range of surface wave energy spectra. Observations are consistent with a local balance between wind input and breaking dissipation, as described by Philips (1985). The measurements include direct covariance wind stress estimates and wave breaking dissipation rate estimates during a 3 week research cruise to OWS-P. The analysis is extended to a wider range of conditions using observations of wave energy spectra and wind speed during a 2 year mooring deployment at OWS-P. At moderate wind speeds (5–15 m/s), mooring wave spectra are in agreement, within 5% uncertainty, with the forcing implied by standard drag laws and mooring wind measurements. At high wind speeds (>15 m/s), mooring wave spectra are biased low, by 13%, relative to the forcing implied by standard drag laws and mooring wind measurements. Deviations from equilibrium are associated with directionality and variations at the swell frequencies. A spectral wave hindcast accurately reproduces the mooring observations, and is used to examine the wind input.