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Table of Contents - The Atmospheric Studies Group at TRC

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Section 2: Geophysical D<strong>at</strong>a Processors<br />

<strong>Table</strong> 2-5 (continued)<br />

Sample CTGPROC Control File Inputs<br />

(CTGPROC.INP)<br />

(NLCD92) design<strong>at</strong>es USGS NLCD 1992<br />

(NLCDTF) design<strong>at</strong>es N<strong>at</strong>ional Land Cover D<strong>at</strong>aset 1992 GeoTIFF<br />

(NLCD01) design<strong>at</strong>es N<strong>at</strong>ional Land Cover D<strong>at</strong>aset 2001 GeoTIFF<br />

(GLC2K) design<strong>at</strong>es Global Land Cover 2000 GeoTIFF<br />

(UMDGLC) design<strong>at</strong>es Univ. <strong>of</strong> Maryland Global Land Cover GeoTIFF<br />

(MODIS) design<strong>at</strong>es Boston Univ. Modis Global Land Cover<br />

! CTG = c:\calpuff\demo\ctgproc\lewiston.cmp ! !END!<br />

! CTG = c:\calpuff\demo\ctgproc\portland.cmp ! !END!<br />

--------------------------------------------------------------------------------<br />

INPUT GROUP: 1 -- Run control parameters<br />

--------------<br />

When multiple applic<strong>at</strong>ions <strong>of</strong> CTGPROC are needed, the gridded land<br />

use d<strong>at</strong>a file (LU.DAT) must be written in a continu<strong>at</strong>ion form<strong>at</strong> r<strong>at</strong>her<br />

than in the fractional land use form<strong>at</strong> expected by MAKEGEO. This<br />

applies to all applic<strong>at</strong>ions except the FINAL applic<strong>at</strong>ion, which must<br />

be in the fractional land use form<strong>at</strong>. Futhermore, if the applic<strong>at</strong>ion<br />

is not the first one in a series, then a PREVIOUS LU.DAT file must<br />

be identified.<br />

Is this the final run<br />

(LFINAL) Default: T ! LFINAL = T !<br />

T = LU.DAT file written in fractional land use form<strong>at</strong><br />

F = LU.DAT file written in continu<strong>at</strong>ion form<strong>at</strong><br />

Is a previous LU.DAT output file used to start this run<br />

(LPREV) Default: F ! LPREV = F !<br />

T = PREV.DAT file is used<br />

F = PREV.DAT file is NOT used<br />

Control for distributing input land use within its cell to improve<br />

the sampling density. A mesh density gre<strong>at</strong>er than one is used to<br />

split each input cell into a finer grid <strong>of</strong> cells. A density <strong>of</strong> 2<br />

cre<strong>at</strong>es 2 cells per side; 3 cre<strong>at</strong>es 3 cells per side. <strong>The</strong> input<br />

land use is assigned to the center <strong>of</strong> each <strong>of</strong> the new cells.<br />

Specify a mesh density for CTG and USGS GLAZ file types:<br />

(MESHCTG) Default=1 ! MESHCTG = 1 !<br />

(MESHGLAZ) Default=1 ! MESHGLAZ = 1 !<br />

<strong>The</strong> coordin<strong>at</strong>es <strong>of</strong> the center <strong>of</strong> each input landuse "cell", both<br />

before and after applying the mesh density factor, can be written<br />

to QA plot files named QACTG.DAT, QAGLAZ.DAT, and QAMESH.DAT.<br />

<strong>The</strong>se files can become very large for large domains.<br />

Cre<strong>at</strong>e QA plot files <strong>of</strong> land use d<strong>at</strong>a points<br />

(LQACELL) Default: F ! LQACELL = F !<br />

T = QA files are cre<strong>at</strong>ed<br />

F = QA files are not cre<strong>at</strong>ed<br />

Daily Snow D<strong>at</strong>a Processing<br />

---------------------------<br />

Snow grids <strong>of</strong> USA SNODAS daily snow d<strong>at</strong>a can be resolved for<br />

CALMET and LU grids, so th<strong>at</strong> daily snow inform<strong>at</strong>ion can be used<br />

in MAKEGEO to cre<strong>at</strong>e daily variable geo.d<strong>at</strong>.<br />

Process snow grids<br />

2-34

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