| WANG Jichao,ZHANG Jie,YANG Jungang,BAO Wendi,WU Guoli,REN Qifeng. 2017. An evaluation of input/dissipation terms in WAVEWATCH III using in situ and satellite significant wave height data in the South China Sea. Acta Oceanologica Sinica, 36(3):20－25 |
| An evaluation of input/dissipation terms in WAVEWATCH III using in situ and satellite significant wave height data in the South China Sea |
| 基于现场和卫星有效波高数据评估WAVEWATCH III的输入/耗散项 |
| Received:April 17, 2016 Revised:May 31, 2016 |
| DOI：10.1007/s13131-017-1038-7 |
| Key words:input/dissipation terms atmospheric instability WAVEWATCH III South China Sea wind speed correction parameter significant wave height |
| 中文关键词: 输入/耗散项 大气不稳定性 WAVEWATCH III 南海 风速校正参数 有效波高 |
| 基金项目:The National Natural Science Foundation of China under contract No. 41406007; the National Key Research and Development Project of China under contract No. 2016YFC1401800; the National Natural Science Foundation of China under contract No. 41306002; the Fundamental Research Funds for the Central Universities of China under contract Nos 16CX02011A and 15CX08011A. |
| Author Name | Affiliation | E-mail | | WANG Jichao | College of Science, China University of Petroleum, Qingdao 266580, China | wangjc@upc.edu.cn | | ZHANG Jie | The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | YANG Jungang | The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | BAO Wendi | College of Science, China University of Petroleum, Qingdao 266580, China | | | WU Guoli | College of Science, China University of Petroleum, Qingdao 266580, China | | | REN Qifeng | School of Mathematical Sciences, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| A WAVEWATCH III version 3.14 (WW3) wave model is used to evaluate input/dissipation source term packages WAM3, WAM4 and TC96 considering the effect of atmospheric instability. The comparisons of a significant wave height acquired from the model with different packages have been performed based on wave observation radar and HY-2 altimetry significant wave height data through five experiments in the South China Sea domain spanning latitudes of 0°-35°N and longitudes of 100°-135°E. The sensitivity of the wind speed correction parameter in the TC96 package also has been analyzed. From the results, the model is unable to dissipate the wave energy efficiently during a swell propagation with either source packages. It is found that TC96 formulation with the "effective wind speed" strategy performs better than WAM3 and WAM4 formulations. The wind speed correction parameter in the TC96 source package is very sensitive and needs to be calibrated and selected before the WW3 model can be applied to a specific region. |
| 中文摘要: |
| 基于WAVEWATCH III，在输入相同的风场条件下，评估了三个输入耗散项WAM3，WAM4以及TC96在是否考虑大气稳定性时的模拟能力。通过5组实验，用南海的测波雷达数据以及研究区域内HY-2高度计的有效波高数据对不同源项的模拟结果进行了比较分析，研究区域为100-135°E，0-35°N。对TC96中的风速校正参数进行了敏感性分析。结果表明，这几种源项在涌浪占主导时的模拟效果都不太理想；考虑大气不稳定性的TC96源项模拟的效果最好；大气不稳定性的影响是以一种所谓的“高效风速”的策略来反映的，其中最重要的一个参数为风速转换参数，这个参数非常敏感，在对特定区域进行模拟之前，应先分析出这个参数的最优值。 |
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