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Table of Contents - The Atmospheric Studies Group at TRC

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Section 9: CALPUFF<br />

<strong>Table</strong> 9-14 (continued)<br />

SURFACE.DAT File – D<strong>at</strong>a Records (Hourly D<strong>at</strong>a File)<br />

(One record per hour)<br />

Records 1,2,3,... Hourly meteorological d<strong>at</strong>a.<br />

Columns Variable Type Description<br />

Base D<strong>at</strong>a<br />

*<br />

*<br />

*<br />

*<br />

*<br />

*<br />

*<br />

*<br />

*<br />

*<br />

IY<br />

IM<br />

ID<br />

IJUL<br />

IH<br />

ZIOBS<br />

ZIPRE<br />

USTR<br />

XMON<br />

Z0M<br />

integer<br />

integer<br />

integer<br />

integer<br />

integer<br />

real<br />

real<br />

real<br />

real<br />

real<br />

Year <strong>of</strong> d<strong>at</strong>a in record (YY or YYYY form<strong>at</strong>)<br />

Month<br />

Day<br />

Julian day (1-366)<br />

Hour (1-24) <strong>at</strong> end <strong>of</strong> hour<br />

Observed mixing height (m)<br />

Calcul<strong>at</strong>ed mixing height (m)<br />

Surface friction velocity (m/s)<br />

Monin-Obukhov length (m)<br />

Hourly surface roughness length (m)<br />

Extended D<strong>at</strong>a<br />

*<br />

*<br />

*<br />

*<br />

IPC<br />

PMMHR<br />

QSWRAD<br />

IRELHUM<br />

integer<br />

real<br />

real<br />

integer<br />

Precipit<strong>at</strong>ion type code<br />

0 - no precipit<strong>at</strong>ion<br />

1 to 18 - liquid precipit<strong>at</strong>ion<br />

19 to 45 - frozen precipit<strong>at</strong>ion<br />

Precipit<strong>at</strong>ion r<strong>at</strong>e (mm/hr)<br />

Short-wave solar radi<strong>at</strong>ion (W/m 2 )<br />

Rel<strong>at</strong>ive humidity (%)<br />

* Free form<strong>at</strong><br />

9-158

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