Relationship between wave steepness and wave age in the course of wind wave growth |
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| Authors: | Wu?Shuping Email author" target="_blank">Hou?YijunEmail author Yin?Baoshu Song?Jinbao Zhao?Xixi |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(2) Graduate School of the Chinese Academy of Sciences, 100039 Beijing, China |
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| Abstract: | It is traditionally assumed that the relationship between wave steepness and wave age is inde- pendent of the wind wave growth state. In fact, the traditional relationship can not describe the whole course of wind wave growth. This paper assumes that the relationship between wave steepness and wave age changes with the variety of dimensionless fetch. Based on the relationship proposed by Hou and Wen (1990), a new relation- ship in the course of wind wave growth is revealed. Comparisons between the present study and other previous relationships show that this new relationship explains better the observations than the other existing relationships. In the case of small fetch, wave age value increases more quickly than other models while it is in opposition to that in the case of large fetch. The result in present paper can clearly reflect the whole course of wind wave growth, it is an improvement for traditional results.Key words: wave steepness, wave age, relationship between wave steepness and wave age |
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| Keywords: | wave steepness wave age relationship between wave steepness and wave age |
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