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Table of Contents - The Atmospheric Studies Group at TRC

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Section 9: CALPUFF<br />

<strong>Table</strong> 9-3 (Continued)<br />

CALPUFF Control File Inputs - Input <strong>Group</strong> 9<br />

Miscellaneous Dry Deposition Parameters<br />

Variable Type Description Default<br />

Value<br />

RCUTR real Reference cuticle resistance (s/cm) 30.<br />

RGR real Reference ground resistance (s/cm) 10.<br />

REACTR real Reference pollutant reactivity 8.<br />

NINT integer Number <strong>of</strong> particle-size intervals used to evalu<strong>at</strong>e<br />

effective particle deposition velocity<br />

IVEG integer Flag specifying the st<strong>at</strong>e <strong>of</strong> veget<strong>at</strong>ion in unirrig<strong>at</strong>ed areas<br />

1 = veget<strong>at</strong>ion is active and unstressed<br />

2 = veget<strong>at</strong>ion is active and stressed<br />

3 = veget<strong>at</strong>ion is inactive<br />

9<br />

1<br />

CALPUFF Control File Inputs - Input <strong>Group</strong> 10<br />

Wet Deposition Parameters<br />

Input <strong>Group</strong> 10 consists <strong>of</strong> a table containing pollutant-dependent values <strong>of</strong> the scavenging coefficient, ,<br />

for both liquid and frozen precipit<strong>at</strong>ion types. <strong>The</strong> form<strong>at</strong> <strong>of</strong> the input table is shown below.<br />

----------------------------------------------------------------------------------------------<br />

INPUT GROUP: 10 -- Wet Deposition Parameters<br />

--------------------------------------------<br />

Scavenging Coefficient -- Units: (sec) -1<br />

Pollutant Liquid Precip. Frozen Precip.<br />

--------- -------------- --------------<br />

! SO2 = 3.0e-5 , 0.0 !<br />

! SO4 = 10.0e-5 , 3.0e-5 !<br />

! NOX = 0.0 , 0.0 !<br />

! HNO3 = 6.0e-5 , 0.0 !<br />

! NO3 = 10.0e-5 , 3.0e-5 !<br />

!END!<br />

9-81

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