Footprint characteristics of scalar concentration in the convective   boundary layer

CORC > 北京大学 > 环境科学与工程学院

	Footprint characteristics of scalar concentration in the convective boundary layer
	Guo, XF ; Cai, XH
刊名	大气科学进展英文版
	2005
关键词	footprint scalar concentration large eddy simulation (LES) backward Lagrangian stochastic (LS) dispersion model convective boundary layer (CBL) LARGE-EDDY-SIMULATION LAGRANGIAN STOCHASTIC-MODELS FLUX MEASUREMENTS HEAVY-PARTICLES SURFACE-LAYER TURBULENCE FOREST DISPERSION TRAJECTORIES STATISTICS
英文摘要	Footprint characteristics for passive scalar concentration in the convective boundary layer (CBL) are investigated. A backward Lagrangian stochastic (LS) dispersion model and a large eddy simulation (LES) model axe used in the investigation. Typical characteristics of the CBL and their responses to the surface heterogeneity are resolved from the LES. Then the turbulence fields are used to drive the backward LS dispersion. To remedy the spoiled description of the turbulence near the surface, Monin-Obukhov similarity is applied to the lowest LES level and the surface for the modeling of the backward LS dispersion. Simulation results show that the footprint within approximately 1 km upwind predominates in the total contribution. But influence from farther distances also exists and is even slightly greater than that from closer locations. Surface heterogeneity may change the footprint pattern to a certain degree. A comparison to three analytical models provides a validation of the footprint simulations, which shows the possible influence of along-wind turbulence and the large eddies in the CBL, as well as the surface heterogeneity.; Meteorology & Atmospheric Sciences; SCI(E); 中国科学引文数据库(CSCD); 0; ARTICLE; 6; 821-830; 22
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/253724]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Guo, XF,Cai, XH. Footprint characteristics of scalar concentration in the convective boundary layer[J]. 大气科学进展英文版,2005.
APA	Guo, XF,&Cai, XH.(2005).Footprint characteristics of scalar concentration in the convective boundary layer.大气科学进展英文版.
MLA	Guo, XF,et al."Footprint characteristics of scalar concentration in the convective boundary layer".大气科学进展英文版 (2005).