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This page last reviewed
August 10, 2009
Software and Data from the
Modeling and Meteorology Branch
General Information
The Air Resources Board charges standard fees for providing software
and data. The fee for models covers our cost to copy and ship the
model, test input and output files, and documentation. The software
and test files can provided on MS-DOS diskettes; 4mm, 8mm, or 9-Track
tape; or by ftp. Documentation and files will be sent by first-class
mail. Currently the documentation is only available in printed
form.
NOTE: No fee applies to software or data downloaded directly from
this web page.
There is a base charge of $60.00 plus $15.00 per file for providing
data maintained by the Modeling and Meteorology Branch. The base
charge covers copying, mailing, and handling. An additional charge of
$30.00 per 9-Track tape or $12.00 per 4mm/8mm tape is required if the
requester does not provide the tape media. Manuals or other
documentation can be ordered at a cost of $5.00 per 150 pages.
Government and educational organizations can be billed for orders
greater than $100.00. California sales tax (7.75%) is charged on
orders shipped to California addresses. Orders shipped to addresses
outside of the United States are charged an additional $5.00. For
overnight requests, the recipient can provide their shipping account
number or add $7.00.
Orders can be taken by phone or e-mail but we require that they be
followed with a written request. Please make your written request
to:
Mr. John DaMassa, Chief
Modeling and Meteorology Branch
Technical Support Division
California Air Resources Board
Post Office Box 2815
Sacramento, California 95812 USA
FAX: 916-327-8524
All software are written in FORTRAN and are provided as source code. A
fortran compiler will be required to use these programs. We have
successfully implemented these models on a variety of platforms
including Intel386 based PCs, UNIX workstations, and Cray
Supercomputers. When implemented on personal computers additional
memory, additional disk space, and a DOS extender may be required to
run real-world problems.
Models developed by or under contract to the Air Resources Board are in
the Public Domain and you may obtain and copy the model and its
documentation from colleagues without a fee. We only charge a fee to
recover the cost of providing these materials as required by agency
policy. If you order a package from the ARB we can answer some basic
questions but we cannot provide detailed assistance in installation or
application of these models.
California Photochemical Grid Model (CALGRID)
CALGRID is a photochemical grid model and is distributed by the
Modeling and Meteorology Branch.
CALGRID has not been fully evaluated and
has not been approved for routine regulatory use in California. The
model as currently distributed uses the 1990 SAPRC chemical mechanism.
We will provide revisions at no additional cost as they become
available. CALGRID comes with some sample emissions processing
routines, and software for chemical mechanism generation. It should be
noted that it will be necessary to develop your own emissions
pre-processors. While CALGRID does not have a post-processor, the
output files from CALGRID are compatible with the CALMET
post-processor.
A bug fix for the ZTRANS.FOR routine that deals with computation of
dry deposition has been found and can be downloaded
here. There is
also an experimental KZ_LASAT routine, using the LASAT KZ equations,
included in the bug-fix zip file.
A mailing list has been setup for the CALGRID model. It can be accessed
at
http://www.arb.ca.gov/listserv/listserv_ind.php?listname=calgrid
Version: 1.6B/S90 (October 18, 1994)
Fee: $100.00
Contact:
Mr. Donald Johnson
Modeling and Meteorology Branch
Voice: 916-445-0962, FAX: 916.327.8524
Download:
CALGRID Version 1.6B, zip'd archive (850 KB)
CALGRID Version 1.6B, gzip'd tar archive (846 KB)
Bug fix for ZTRANS.FOR and experimental KZ_LASAT routine,
zip'd archive (8.5 KB)
CALGRID User's Guide (469 KB)
CALGRID Model Formulation Document (325 KB)
Census Data Gridding Program (CDGP)
The CDGP is used to allocate census or other data from irregular areas
(described as polygons) to regularly spaced grid cells using the method
of polygon overlays.
This package includes the FORTRAN code of the census data gridding
program and sample input file.
A User's Guide is available for download below.
Version: October 28, 1993
Download:
CDGP.zip, zip'd archive (15k)
Download:
CDGP_UG.pdf, CDGP User's Guide (864k)
Contact:
Donald P. Johnson
Modeling and Meteorology Branch
Voice: 916-445-0962, FAX: 916.327.8524
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