Variation of Wind Velocity and Gusts with Height

Sherlock, R. H.

doi:10.1061/taceat.0006863

Cited by 16 publications

(1 citation statement)

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“…The wind gust factor was an early wind gust forecasting metric that was calculated as the ratio of the maximum wind speed to the average wind speed within a set time period. From this metric, the strength of wind speed pulsation was obtained, and the expected maximum wind gust value was estimated (Sherlock, 1952). The wind gust factor methodology is still widely used in practical operational forecasting owing to its simplicity and convenience (Cook et al, 2008;Blaes et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Establishment of Wind Gust Estimation Equation in Bohai Sea

Huang

Dai

et al. 2022

Front. Earth Sci.

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Wind gusts over the ocean can have a great influence on maritime transport and production operations. However, owing to the scarcity of marine observation data and the complex causes of wind gusts, the estimation and forecasting of gusts at sea are even more difficult. In this study, a gust estimation equation applicable to the Bohai Sea is established based on observation and reanalysis data, with representative observation stations on the coast and offshore in the Bohai Sea. During the process, partial correlation analysis and a significance test of correlation coefficient differences were used to further clarify the influence of average wind speed and vertical wind shear at different heights on wind gusts. The final gust estimation equation includes a mean wind speed term, a turbulence term, and a convection term, which are statistically significant contributors; in addition, there are clear physical meanings. Comparing two gust factor methods in this study, the average errors and fitting errors of the least squares gust estimation equation are the smallest. For wind gusts between 10 and 26 m/s, the fitting error in the gust estimation equation is 7.68–12.25% and 21.10–30.08% lower than those of the two gust factor methods in this study. The gust estimation equation better reflects the difference of wind gusts typical under different average wind speeds and vertical wind shear conditions, so a better prediction for wind gusts can be achieved.

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Section: Introductionmentioning

confidence: 99%