An Analysis of the Turbulent Structure in the Unstable Surface Layer nearby a Shelter Belt

被引：2

作者：

曾宗泳

马成胜

刘晓春

凌蕙琴

机构：

[1] AnhuiInstituteofOpticsandFineMechanics,AcademiaSinica,Hefei,AnhuiInstituteofOpticsandFineMechanics,AcademiaSinica,Hefei,AnhuiInstituteofOpticsandFineMechanics,AcademiaSinica,Hefei,AnhuiInstituteofOpticsandFineMechanics,AcademiaSinica,Hefei

来源：

Advances in Atmospheric Sciences | 1989年 / 04期

关键词：

In; An Analysis of the Turbulent Structure in the Unstable Surface Layer nearby a Shelter Belt;

D O I：

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摘要：

<正> An analysis was performed of the turbulent data obtained from Yucheng experimental station in the Shandong Province in 1984. [t is shown that at variant wind speed, the spectra of streamwise velocity remain similar and the intensity of wind fluctuations is proportional to wind speed in the downwind area of shelter belt. Therefore, we may decide the similarity of wind fluctuations by a speed scale and a length scale which is not correlated with stability, σu /V0 = F(X / H). The -5/3 power range of temperature spectra extends to lower frequency. The variation of ratio σ0 /T. with stability becomes σ0 / T . = C(X / H)( - Z / L)-1/3 . There is not such an extension of -5 / 3 power range in the humidity spectra.

引用

页码：493 / 500

页数：8

共 5 条

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[2]

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