Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD028010 |
Effects of Wind Direction on Variations in Friction Velocity With Wind Speed Under Conditions of Strong Onshore Wind | |
Fang, Pingzhi1; Zhao, Bingke1; Zeng, Zhihua1; Yu, Hui1; Lei, Xiaotu1; Tan, Jianguo2 | |
2018-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:14页码:7340-7353 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The effects of wind direction on variations in friction velocity with wind speed are studied under moderate (>= 9 m/s) to strong (>= 22 m/s) onshore wind conditions using 20-Hz ultrasonic wind data from a coastal tower at three different heights. The effects of different averaging time intervals of 20, 10, 2, and 1 min on the variations are also investigated. Three typhoons passed by the tower during the 150 hr of observations. Regardless of wind direction, friction velocity increases with increasing wind speed, and linear regression shows that the rate of increase is similar to 50% less than previously reported. However, a leveling-off or decrease in friction velocity with increasing wind speed is found under strong wind conditions using a bin-averaged method. Wind direction affects the variations in friction velocity with wind speed. Friction velocity increases with increasing wind speed at a similar growth rate to that of previously published results, with a leveling-off or decrease at wind speeds higher than 22 m/s when the wind blows roughly normal to the shoreline. Form drag induced by sea waves with longer wavelengths is suggested to be responsible for the effects of wind direction on the variations in friction velocity with wind speed. An averaging time interval of 1 min yields representative variations in friction velocity with wind speed using the observations described in this study. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441965400019 |
WOS关键词 | SEA-SURFACE ROUGHNESS ; INTERNAL BOUNDARY-LAYER ; DRAG COEFFICIENT ; TROPICAL CYCLONE ; MOMENTUM FLUX ; ATMOSPHERE MODEL ; SUDDEN CHANGE ; WAVES ; PARAMETERIZATION ; STRESS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33536 |
专题 | 气候变化 |
作者单位 | 1.China Meteorol Adm, Shanghai Typhoon Inst, Shanghai, Peoples R China; 2.Shanghai Inst Meteorol Sci, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Fang, Pingzhi,Zhao, Bingke,Zeng, Zhihua,et al. Effects of Wind Direction on Variations in Friction Velocity With Wind Speed Under Conditions of Strong Onshore Wind[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(14):7340-7353. |
APA | Fang, Pingzhi,Zhao, Bingke,Zeng, Zhihua,Yu, Hui,Lei, Xiaotu,&Tan, Jianguo.(2018).Effects of Wind Direction on Variations in Friction Velocity With Wind Speed Under Conditions of Strong Onshore Wind.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(14),7340-7353. |
MLA | Fang, Pingzhi,et al."Effects of Wind Direction on Variations in Friction Velocity With Wind Speed Under Conditions of Strong Onshore Wind".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.14(2018):7340-7353. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论