PBL SIMILARITY PROFILES DETERMINED FROM A LEVEL-2 TURBULENCE-CLOSURE MODEL

被引:21
作者
YAMADA, T
机构
[1] Atmospheric Physics Section, Radiological and Environmental Research Division, Argonne National Laboratory, Argonne, 60439, Ill.
关键词
D O I
10.1007/BF00117923
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
A diagnostic model for the determination of similarity profiles of turbulence and mean-wind gradient in the planetary boundary layer is developed. Vertical profiles of a turbulence length scale and the flux Richardson number are formulated through the extension of the relationships for the constant flux layer. These profiles together with a turbulence energy equation and a similarity profile empirically determined for heat or momentum flux are used to compute the turbulence energy. Relationships previously derived from a turbulence closure model are used to compute second moments of turbulence. © 1979 D. Reidel Publishing Co.
引用
收藏
页码:333 / 351
页数:19
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