| SHI Jian,ZHONG Zhong,LI Ruijie,LI Yan,SHA Wenyu. 2011. Dependence of sea surface drag coefficient on wind-wave parameters. Acta Oceanologica Sinica, (2):14－24 |
| Dependence of sea surface drag coefficient on wind-wave parameters |
| Dependence of sea surface drag coefficient on wind-wave parameters |
| Received:January 12, 2011 Revised:July 02, 2011 |
| DOI：10.1007/s13131-011-0101-z |
| Key words:sea surface drag coefficient wind-wave parameter Windsea Reynolds number |
| 中文关键词: sea surface drag coefficient wind-wave parameter Windsea Reynolds number |
| 基金项目:The National Natural Science Foundation of China under Grant Nos 40675056 41076074, National Key Basic Research Development Program under Grant No.2007CB411805 and the Basic Theory Foundation of Institute of Meteorology, PLA University of Science and Technology. |
| Author Name | Affiliation | E-mail | | SHI Jian | Institute of Meteorology, PLA University of Science and Technology, Nanjing, 211101, China
Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Nanjing, 210098, China | shijian.mil@163.com | | ZHONG Zhong | Institute of Meteorology, PLA University of Science and Technology, Nanjing, 211101, China | | | LI Ruijie | Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Nanjing, 210098, China | | | LI Yan | Institute of Meteorology, PLA University of Science and Technology, Nanjing, 211101, China | | | SHA Wenyu | Institute of Meteorology, PLA University of Science and Technology, Nanjing, 211101, China | |
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| Abstract: |
| The relationships between sea surface roughness z0 and wind-wave parameters are analyzed, and spurious self-correlations are found in all of the parameterization schemes. Sea surface drag coefficient CD is fitted by four wind-wave parameters that are wave age, wave steepness, windsea Reynolds number RB and RH, and the analyzed data are divided into laboratory, field and combined data sets respectively. Comparison and analysis of dependence of CD on wind-wave parameters show that RB can fit the CD most appropriately. Wave age and wave steepness are not suitable to fit CD with a narrow range data set. When the value of wave age has a board range, RH is not suitable to fit CD either. Three relationships between CD and RB are integrated into the bulk algorithm COARE to calculate the observational friction velocity, and the results show that the relationship between CD and RB which is fitted with field data set can describe the momentum transfer in the open ocean, under low-moderate wind speed condition, most appropriately. |
| 中文摘要: |
| The relationships between sea surface roughness z0 and wind-wave parameters are analyzed, and spurious self-correlations are found in all of the parameterization schemes. Sea surface drag coefficient CD is fitted by four wind-wave parameters that are wave age, wave steepness, windsea Reynolds number RB and RH, and the analyzed data are divided into laboratory, field and combined data sets respectively. Comparison and analysis of dependence of CD on wind-wave parameters show that RB can fit the CD most appropriately. Wave age and wave steepness are not suitable to fit CD with a narrow range data set. When the value of wave age has a board range, RH is not suitable to fit CD either. Three relationships between CD and RB are integrated into the bulk algorithm COARE to calculate the observational friction velocity, and the results show that the relationship between CD and RB which is fitted with field data set can describe the momentum transfer in the open ocean, under low-moderate wind speed condition, most appropriately. |
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