Table of Contents - The Atmospheric Studies Group at TRC

Section 9: CALPUFF
Table 9-3 (Continued)
CALPUFF Control File Inputs - Input Group 6
Subgrid Scale Complex Terrain (CTSG) Inputs
Variable Type Description Default Value
(Input Group 6a - General CTSG Parameters)
NHILL integer Number of subgrid scale terrain features 0
NCTREC
integer
Number of special subgrid scale complex terrain receptors
0
MHILL
integer
Terrain and receptor data for CTSG hills input in CTDM format (1
= data created by CTDM processors and read from HILL.DAT and
HILLRCT.DAT files; 2 = hill data created by OPTHILL & input
below in Subgroup (6b)).
-
XHILL2M
real
Factor to convert horizontal dimensions to meters (used only if
MHILL = 1)
1.0
ZHILL2M
XCTDMKM
YCTDMKM
real
real
real
Factor to convert vertical dimensions to meters
(used only if MHILL = 1)
X-origin of CTDM system relative to CALPUFF coordinate system,
in Kilometers (MHILL = 1)
Y-origin of CTDM system relative to CALPUFF coordinate system,
in Kilometers (MHILL = 1)
1.0
-
-
(Input Group 6b - Hill Information)
XC real UTM X coordinate (km) of the center of the hill on the
meteorological grid
YC real UTM Y coordinate (km) of the center of the hill on the
meteorological grid
THETAH real Orientation of the major axis of the hill (in degrees) clockwise from
north
-
-
-
ZGRID real Height (m) of the "zero-plane" of the grid above mean sea level -
RELIEF real Height (m) of the crest of the hill above the grid elevation -
EXPO1 real Hill shape exponent for the major axis of the hill -
EXPO2 real Hill shape exponent for the minor axis of the hill -
SCALE1 real Horizontal length scale of the hill along the major axis -
SCALE2 real Horizontal length scale of the hill along the minor axis -
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