Canarina Environmental Software

Canarina DISPER software · air · environmental reporting · algorithms 14

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Courtesy of Canarina Environmental Software

 

Canarina DISPER software · air · environmental reporting

 

9.1.5 The Dispersion Parameters 

Point Source Dispersion Parameters:

Equations that approximately fit the Pasquill-Gifford curves are used to calculate sigy and sigz (in meters) for the rural mode. The equations used to calculate sigy are of the form:

 

sigy=465.11628 x tan (TH)        (29) 

 

where:

 

TH=0.017453293[c - d ln(x)] (30) 

 

In both Equations the downwind distance x is in kilometers. The equation used to calculate sigz is of the form:

 

sigz=axb    (31) 

 

where the downwind distance x is in kilometers and sigz is in meters. 

 

 

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Canarina DISPER software · air · environmental reporting

It is interesting for dispersion modeling, air dispersion, air dispersion modeling, environmental reporting, methane, flares, flare stacks

 

 

 

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