CALPUFF and Postprocessors

Table F-58 (Continued)
Unformatted VISB.DAT file - Header Record NCOM+3 - General Data
No. Variable Type a Description
Sample
Values
1 CMODEL C*12 Model name CALPUFF
2 VER C*12 Model version number 5.72
3 LEVEL C*12 Model level number 031017
4 IBYR integer Starting year of the run 1980
5 IBJUL integer Starting Julian day 183
6 IBHR integer Time at start of first period (hour 00-23 LST) 8
7 IBSEC integer Time at start of first period (second 0000-3599 ) 0000
8 XBTZ real Base time zone (LST+XBTZ=UTC) 6.0
9 IRLG integer Length of run (timesteps) 10
10 IAVG integer Averaging time (timesteps) of output concentrations 2
11 NSECDT integer Length of a timestep (seconds)
12 NXM integer Number of grid points in meteorological grid (X
direction)
13 NYM integer Number of grid points in meteorological grid (Y
direction)
14 DXKM
real Grid spacing (km) in the X direction 5.
15 DYKM real Grid spacing (km) in the Y direction 5.
16 IONE integer Number of receptor layers (must be equal to one for
CALPUFF runs)
17 XORIGKM real Reference X coordinate (km) of the southwest corner of
grid cell (1,1) of the meteorological grid
18 YORIGKM real Reference Y coordinate (km) of the southwest corner of
grid cell (1,1) of the meteorological grid
19 NSSTA integer Number of surface meteorological stations 5
20 IBCOMP integer Start of computational grid in X direction 1
21 IECOMP integer End of computational grid in X direction 20
22 JBCOMP integer Start of computation grid in the Y direction 1
23 JECOMP integer End of computational grid in Y direction
24 IBSAMP integer Start of sampling grid in X direction 1
25 JBSAMP integer Start of sampling grid in Y direction 1
1800
20
20
1
190.
440.
20
a C*12 = Character*12
MAR 2006 – CALPUFF
F-254