气候变化领域集成服务门户(CCPortal): Estimating Wind Speed and Direction Using Wave Spectra

CCPortal

DOI	10.1029/2019JC015717
	Estimating Wind Speed and Direction Using Wave Spectra
	Voermans J.J.; Smit P.B.; Janssen T.T.; Babanin A.V.
发表日期	2020
ISSN	21699275
卷号	125 期号:2
英文摘要	Compact wave buoys are increasingly used to provide monitoring of coastal and oceanic conditions by measuring surface waves in real time. Due to their relatively compact size, they are generally not suited to measure wind directly. However, since the wave field is intrinsically coupled to the wind field, wave measurements can serve as a proxy observation of ocean surface winds. In this study, we use spectral wave observations to estimate wind speed and direction based on the assumption of a universal (Formula presented.) shape of the wave energy spectrum in the equilibrium range and the presence of a logarithmic wind speed profile above the ocean surface. The wind speed and direction were estimated between 2014 and 2017 at more than a 100 coastal sites with colocated wave and wind observations. Estimates of wind speed and direction based on wave measurements have a root-mean-square error of 2 m/s for wind speeds between 3 and 12 m/s (and a relative error of 17% for wind speeds between 10 and 20 m/s) and up to 20° for wind speeds between 10 and 20 m/s. The accuracy of proxy measurements of wind depends on fetch, wave steepness, wave age, directional alignment between wind and dominant waves, and temporal variability of the wind. Further, we show that estimates of wind speed and direction improve considerably as the size of the buoy is reduced. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186970
作者单位	Department of Infrastructure Engineering, University of Melbourne, Melbourne, VIC, Australia; Sofar Ocean Technologies, San Francisco, CA, United States; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
推荐引用方式 GB/T 7714	Voermans J.J.,Smit P.B.,Janssen T.T.,et al. Estimating Wind Speed and Direction Using Wave Spectra[J],2020,125(2).
APA	Voermans J.J.,Smit P.B.,Janssen T.T.,&Babanin A.V..(2020).Estimating Wind Speed and Direction Using Wave Spectra.Journal of Geophysical Research: Oceans,125(2).
MLA	Voermans J.J.,et al."Estimating Wind Speed and Direction Using Wave Spectra".Journal of Geophysical Research: Oceans 125.2(2020).