VDI 3782 Blatt 5-2006
环境气象学 大气扩散模型 沉积参数

Environmental meteorology - Atmospheric dispersion models - Deposition parameters

标准号

VDI 3782 Blatt 5-2006

发布

2006年

发布单位

德国机械工程师协会

 

 

引用标准

VDI 3782 Blatt 1-2001 VDI 3783 Blatt 8-2002 VDI 3945 Blatt 1-1996 VDI 3945 Blatt 3-2000

被代替标准

VDI 3782 Blatt 5-2004

适用范围

The guideline contains theoretical determination methods and values, which have been derived from measurements, for the deposition velocity and the washout rate of aerosols and trace gases. These parameters, briefly termed deposition parameters in the following, are required for calculating the dry and wet deposition flux to the ground or to near-ground boundary surfaces by dispersion models, such as Gaussian plume models (VDI 3782 Part 1), Gaussian puff models (VDI 3945 Part 1) and particle models (VDI 3945 Part 3). They may also be used for estimating, on the basis of known trace substance concentrations in the air, the flux to the ground by dry and wet deposition.Theoretical approaches are presented for the deposition parameters. An analytical calculation rule is described for aerosols, and numerical values for different surface conditions are given for selected trace gases. The information is based on a literature study; in Annex D, the evaluated literature and the values quoted therein are listed.

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