Table of Contents - The Atmospheric Studies Group at TRC

Section 8: CALMET Model Files
Table 8-8 (Continued)
GEO.DAT File Format
Record Variable Type Description
NCOMM +6 or 7 DGRIDY real Horizontal grid spacing: Northing (= DGRIDX)
NCOMM +7 or 8 XYUNIT character*4 Units for horizontal coordinates (KM)
NCOMM+8 or 9 IOPT1 integer Option flag for land use categories
(0=to use default land use categories)
(1=to specify new land use categories)
NCOMM +9 or 10 ** NLU integer
NCOMM
IWAT1,
+9 or 10 ** IWAT2
integer
Number of land use categories
Range of land use categories associated with water
(i.e., land use categories IWAT1 to IWAT2,
inclusive, are assumed to represent water surfaces)
NCOMM +10 or ILUCAT integer array Array of "NLU" new user specified land use
11 ** categories
NEXT NY lines ILANDU integer array Land use types for cell grid point (NX values per
line). The following statements are used to read the
data:
do 20 J=NY,1,-1
20 READ (iogeo,*)(ILANDU(n,j), n=1, nx)
NEXT line HTFAC real Multiplicative scaling factor to convert terrain heights
from user units to meters (e.g., HTFAC = 0.3048 for
user units of ft, 1.0 for user units of meters)
NEXT NY lines ELEV real array Terrain elevations (user units) for each grid point
(NX values for line). The following statements are
used to read the data:
do 30 J=NY,1,-1
30 READ(iogeo,*)(ELEV(n,j),n=1,NX)
NEXT line IOPT2 integer Option flag for input of surface roughness lengths
(z0)
0=compute gridded z0 values from land use
types using default z0 land use table
1=compute gridded z0 values from land use
types using new, user-specified z0 land use table
2=input a gridded z0 field
NEXT **
ILU integer Land use type and associated surface roughness
NLU lines
ZOLU real array lengths (m). Two variables per line read as:
do 120 I=1,NLU
120 READ(iogeo,*)ILU,ZOLU(I)
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