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The Wind Structure in Planetary Boundary Layer
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作者 赵鸣 徐银梓 伍荣生 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1989年第3期365-376,共12页
The investigations on the dynamies of the PBL have been developed in recent years. Some authors emphasized macro-dynamics and others emphasized micro-structure of the PBL. In this paper, we study and review some main ... The investigations on the dynamies of the PBL have been developed in recent years. Some authors emphasized macro-dynamics and others emphasized micro-structure of the PBL. In this paper, we study and review some main characteristics of the wind field in the PBL from the view point connecting the macro-dynamics and micro-stucture of the PBL, thus providing the physical basis for the further research of the dynamics and the parameterization of the PBL. 展开更多
关键词 The wind Structure in Planetary boundary layer PBL
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ADJUSTMENT OF WIND AND PRESSURE FIELDS IN THE BOUNDARY LAYER
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作者 Xu Yinzi Wu Rongsheng Department of Atmospheric Sciences,Nanjing University,Nanjing 《Acta meteorologica Sinica》 SCIE 1990年第1期27-37,共11页
The vertical transport of mass at the top of the boundary layer is considered as a link between the boundary layer and free atmosphere.The adjustment of the wind and pressure fields in the boundary layer is studied un... The vertical transport of mass at the top of the boundary layer is considered as a link between the boundary layer and free atmosphere.The adjustment of the wind and pressure fields in the boundary layer is studied under the consideration of the interaction between the boundary layer and free atmosphere.The vertical motion at the top of the boundary layer is evaluated.The results show that the distinguished differ- ences of the present results from classical Ekman layer do exist and they are discussed in the paper. 展开更多
关键词 PBL ADJUSTMENT OF wind AND PRESSURE FIELDS IN THE boundary layer
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INFLUENCES OF NONSTATIONARY PROCESS ON INTERNAL PARAMETERS AND WIND PROFILES IN THE PLANETARY BOUNDARY LAYER
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作者 赵鸣 《Acta meteorologica Sinica》 SCIE 1989年第2期176-184,共9页
In this paper,under the assumption of neutral and barotropic atmosphere,by means of the analytic solution of motion equation of PBL,the influences of nonstationary process on the internal parameters u_*/A(A is the win... In this paper,under the assumption of neutral and barotropic atmosphere,by means of the analytic solution of motion equation of PBL,the influences of nonstationary process on the internal parameters u_*/A(A is the wind speed at the top of PBL)and ■(the angle between winds near the surface and at the top of PBL)of PBL are investigated in which the wind direction at the top of PBL is a periodic function of time but the wind speed at the top of PBL does not change.The u_*/A increases and ■ decreases when the wind direction at the top of PBL rotates anticlockwise and vice versa.Hence the parameterization of PBL in the large-scale models derived under the stationary condition should be corrected by accounting for the nonstationary process.The similar results are obtained in the numerical solution of the motion equation of PBL.The influences of this nonstationary process on the profiles of the wind in PBL are also analyzed. 展开更多
关键词 PBL INFLUENCES OF NONSTATIONARY PROCESS ON INTERNAL PARAMETERS AND wind PROFILES IN THE PLANETARY boundary layer
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