CLC number: TU317.2
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2016-12-12
Cited: 0
Clicked: 4230
Citations: Bibtex RefMan EndNote GB/T7714
Xu Wang, Peng Huang, Xian-feng Yu, Xin-rong Wang, Hai-ming Liu. Wind characteristics near the ground during typhoon Meari[J]. Journal of Zhejiang University Science A, 2017, 18(1): 33-48.
@article{title="Wind characteristics near the ground during typhoon Meari",
author="Xu Wang, Peng Huang, Xian-feng Yu, Xin-rong Wang, Hai-ming Liu",
journal="Journal of Zhejiang University Science A",
volume="18",
number="1",
pages="33-48",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1500310"
}
%0 Journal Article
%T Wind characteristics near the ground during typhoon Meari
%A Xu Wang
%A Peng Huang
%A Xian-feng Yu
%A Xin-rong Wang
%A Hai-ming Liu
%J Journal of Zhejiang University SCIENCE A
%V 18
%N 1
%P 33-48
%@ 1673-565X
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500310
TY - JOUR
T1 - Wind characteristics near the ground during typhoon Meari
A1 - Xu Wang
A1 - Peng Huang
A1 - Xian-feng Yu
A1 - Xin-rong Wang
A1 - Hai-ming Liu
J0 - Journal of Zhejiang University Science A
VL - 18
IS - 1
SP - 33
EP - 48
%@ 1673-565X
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500310
Abstract: Wind speed and direction data during typhoon Meari were obtained from eight anemometers installed at heights of 10, 20, 30, and 40 m on a 40-m tower built in the Pudong area of Shanghai. Wind-turbulence characteristics, including wind-speed profile, turbulence integral scale, power spectra, correlations, and coherences were analyzed. Wind-speed profiles varied with time during the passage of Meari. Measured wind-speed profiles could be expressed well by both a power law and a log law. turbulence integral scales for u, v, and w components all increased with wind speed. The ratios of the turbulence scales among the turbulence components averaged for all 10-min data were 1׃0.69׃0.08 at 10 m, 1׃0.61׃0.09 at 20 m, and 1׃0.65׃0.13 at 40 m. The turbulence integral scales for the u and v components increased with average gust time, but the turbulence integral scale for the w component remained almost constant when the gust duration was greater than 10 min. The decay factor of the coherence function increased slightly with wind speed, with average values for longitudinal and lateral dimensions of 14.3 and 11.3, respectively. The slope rates of the turbulence spectra in the inertial range were less than −5/3 at first, but gradually satisfied the Kolmogorov 5/3 law. The longitudinal wind-power fluctuation spectrum roughly fitted the von Karman spectrum, but slight deviations occurred in the high-frequency band for lateral and vertical wind-power fluctuation spectra.
This paper was well-organized written and presented a valuable case history study for wind characteristics during typhoons.
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