Dry deposition modelling in a Lagrangian dispersion model

被引：18

作者：

Webster, H. N. ^{[1
]}

Thomson, D. J. ^{[1
]}

机构：

[1] Met Off, Exeter EX1 3PB, Devon, England

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2011年 / 47卷 / 1-4期

关键词：

dry deposition; elevated sources; entrainment scheme; Lagrangian dispersion model; sedimentation; NAME; numerical atmospheric-dispersion modelling environment;

D O I：

10.1504/IJEP.2011.047322

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Revisions to the dry deposition scheme in the Lagrangian dispersion model, NAME, are described. Improvements are made for situations where material is not well mixed within the boundary layer and for sedimenting heavy particles. The revised scheme overcomes problems of computational noise, common in Lagrangian dispersion models, with a manageable or no increase to the computational cost. The result is a scheme that is well suited to all situations and that has better interaction between the advection, deposition and sedimentation.

引用

页码：1 / 9

页数：9