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CALPUFF and Postprocessors

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Table F-39<br />

Sample User-Specified Chemical Transformation Rate Data File (CHEM.DAT)<br />

CHEMICAL TRANSFORMATION RATE FILE (CHEM.DAT)<br />

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

CHEM.DAT contains a 24-hour diurnal cycle of chemical transformation<br />

rates for the chemical transformation of SO2 to SO4, <strong>and</strong> NOx to HNO3/PAN.<br />

k1 = SO2 to SO4 transformation rate(percent/hour)<br />

k2 = NOx to HNO3 + PAN transformation rate (percent/hour)<br />

k3 = NOx to HNO3 (only) transformation rate (percent/hour)<br />

The first value correspond to the period from 0:00 to 1:00, <strong>and</strong> the 24th value corresponds to<br />

23:00-0:00.<br />

TRANSFORMATION RATE (percent/hour)<br />

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

! K1 = 7*0.2, 0.4, 0.8, 1.2, 1.6, 3*2.0, 1.6, 1.2, 0.8, 0.4, 6*0.2 !<br />

! K2 = 7*2.0, 4.0, 8.0,12.0,15.0, 3*20.0, 15.0, 12.0, 8.0, 4.0, 6*2.0 !<br />

! K3 = 7*2.0, 3.0, 6.0, 8.0,11.0, 3*15.0, 11.0, 8.0, 6.0, 3.0, 6*2.0 !<br />

!END!<br />

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

F-184

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