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Table of Contents - The Atmospheric Studies Group at TRC

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Section 9: CALPUFF<br />

*ANEMHT real Anemometer height (m) (used only if METFM = 2,3) 10.0<br />

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

CALPUFF Control File Inputs - Input <strong>Group</strong> 12<br />

Dispersion and Comput<strong>at</strong>ional Parameters<br />

Variable Type Description Default Value<br />

*ISIGMAV integer Form <strong>of</strong> l<strong>at</strong>eral turbulence d<strong>at</strong>a in PROFILE.DAT file<br />

(used only if METFM = 4 or MTURBVW = 1 or 3)<br />

0 = read sigma-theta<br />

1 = read sigma-v<br />

*IMIXCTDM integer Choice <strong>of</strong> mixing heights (used only if METFM = 4)<br />

0 = read PREDICTED mixing heights<br />

1 = read OBSERVED mixing heights<br />

1<br />

0<br />

XMXLEN real Maximum length <strong>of</strong> an emitted slug (in met. grid units) 1.0<br />

XSAMLEN real Maximum travel distance <strong>of</strong> a slug or puff (in met. grid<br />

units) during one sampling step<br />

MXNEW integer Maximum number <strong>of</strong> puffs or slugs released from one<br />

source during one time step (serves as a cap if<br />

XMXLEN is specified too small)<br />

MXSAM integer Maximum number <strong>of</strong> sampling steps during one time<br />

step for a puff or slug (serves as a cap if XSAMLEN is<br />

specified too small)<br />

NCOUNT integer Number <strong>of</strong> iter<strong>at</strong>ions used when computing the transport<br />

wind for a sampling step th<strong>at</strong> includes transitional<br />

plume rise (used when METFM=1 or 4)<br />

1.0<br />

99<br />

99<br />

2<br />

SYMIN real Minimum y (m) a new puff or slug 1.0<br />

SZMIN real Minimum z (m) a new puff or slug 1.0<br />

SZCAP_M real Maximum z (m) allowed to avoid numerical problem<br />

in calcul<strong>at</strong>ing virtual time/distance<br />

5.0E06<br />

SVMIN real Minimum turbulence v (m/s) -- 6 LAND, 6 WATER 6*.50, 6*.37<br />

SWMIN real Minimum turbulence w (m/s) -- 6 LAND, 6 WATER .20, .12, .08,<br />

.06, .03,0.016,<br />

.20, .12, .08,<br />

.06, .03,0.016<br />

9-88

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