CALPUFF and Postprocessors

CALPUFF and Postprocessors CALPUFF and Postprocessors

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Table F-3 (Continued) CALPUFF Control File Inputs - Input Group 7 Dry Deposition Parameters - Gases Input Group 7 consists of a table containing the following five parameters which are required by the resistance deposition model for computing deposition velocities for gases: • Pollutant diffusivity (cm 2 /s) • Aqueous phase dissociation constant, alpha-star • Pollutant reactivity • Mesophyll resistance, r m (s/cm) • Henry's Law coefficient, H (dimensionless) These parameters must be specified for each pollutant with a dry deposition flag of "1" in the species list (Input Group 3) indicating the use of the resistance model for a gas. The format of the input table is shown below: -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- INPUT GROUP: 7 -- Chemical parameters for dry deposition of gases -------------------------- SPECIES DIFFUSIVITY ALPHA-STAR REACTIVITY MESOPHYLL RESISTANCE HENRY'S LAW COEFFICIENT NAME (cm**2/s) (s/cm) (dimensionless) ----------- ------------------ ------------------- ------------------- -------------------------------------- ----------------------------------------- ! SO2 = 0.1509 , 1.00E3 , 8.0 , 0.0 , 4.e-2 ! ! NOX = 0.1656 , 1.00 , 8.0 , 5.0 , 3.5 ! ! HNO3 = 0.1628 , 1.00 , 18.0 , 0.0 , 8.e-8 ! !END! MAR 2006 – CALPUFF F-61

Table F-3 (Continued) CALPUFF Control File Inputs - Input Group 8 Dry Deposition Parameters - Particles Input Group 8 consists of a table containing the geometric mass mean diameter (microns) and the geometric standard deviation (microns) required by the resistance deposition model for computing deposition velocities for particulate matter. These parameters must be specified for each pollutant with a dry deposition flag of "2" in the species list (Input Group 3) indicating the use of the resistance model for a pollutant deposited as particulate matter. The format of the input table is shown below: ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- INPUT GROUP: 8 -- Size parameters for dry deposition of particles ------------------ SPECIES GEOMETRIC MASS MEAN GEOMETRIC STANDARD NAME DIAMETER DEVIATION (microns) (microns) ------------ ---------------------------------- --------------------------------- ! SO4 = 0.48 , 2.00 ! ! NO3 = 0.48 , 2.00 ! ! PM10 = 0.48 , 2.00 ! !END! MAR 2006 – CALPUFF F-62

Table F-3 (Continued)<br />

<strong>CALPUFF</strong> Control File Inputs - Input Group 8<br />

Dry Deposition Parameters - Particles<br />

Input Group 8 consists of a table containing the geometric mass mean diameter (microns) <strong>and</strong> the<br />

geometric st<strong>and</strong>ard deviation (microns) required by the resistance deposition model for computing<br />

deposition velocities for particulate matter.<br />

These parameters must be specified for each pollutant with a dry deposition flag of "2" in the species list<br />

(Input Group 3) indicating the use of the resistance model for a pollutant deposited as particulate matter.<br />

The format of the input table is shown below:<br />

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

INPUT GROUP: 8 -- Size parameters for dry deposition of particles<br />

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

SPECIES GEOMETRIC MASS MEAN GEOMETRIC STANDARD<br />

NAME DIAMETER DEVIATION<br />

(microns)<br />

(microns)<br />

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

! SO4 = 0.48 , 2.00 !<br />

! NO3 = 0.48 , 2.00 !<br />

! PM10 = 0.48 , 2.00 !<br />

!END!<br />

MAR 2006 – <strong>CALPUFF</strong><br />

F-62

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