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NOTICE.README
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NOTICE.README
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-----------------------------------------------------------------------------------------
NOTICE AND DISCLAIMER
=====================
This notice and disclaimer applies to the changes made to C language computer code
and to certain ancillary files by David I. Donato of the United States Geological
Survey (USGS) Eastern Geographic Science Center (EGSC) during calendar year 2006.
The subject changes are identified as follows:
(a) USGS preliminary modifications to SLEUTH Version 3.0 Beta Revision D, a computer
program for simulating urban growth and other land development using cellular
automata methods. (Please refer to the Project Gigalopolis Web Site for more
information about the SLEUTH model:
http://www.ncgia.ucsb.edu/projects/gig/projects_gig.htm .)
The resulting version of the SLEUTH urban-growth model is SLEUTH-3r.
(b) Modifications were made by David I. Donato, Computer Scientist, Eastern Geographic
Science Center, U.S. Geological Survey (http://egsc.usgs.gov).
(c) Original modules written in C were modified; new functions were written in C; and
ancillary files were modified. These changes were based on
SLEUTH UGM Version 3.0 Revision D[-1.0] and resulted in SLEUTH-3r. Revisions were
completed September 6, 2006.
(d) This software was run on the Eastern Geographic Science Center (EGSC) High-
Performance Computing Cluster (HPCC), an 18-node Beowulf including 16 Linux-based
work nodes. Further information about the EGSC HPCC is available at
http://egscbeowulf.er.usgs.gov.
(e) The source code with the subject modifications has been shared informally but
has not been formally published by the U.S. Geological Survey.
The specific modified files to which this notice and disclaimer applies are as follow:
INCLUDE FILES:
--------------
igrid_obj.h
memory_obj.h
spread.h
ugm_defines.h
C SOURCE FILES:
---------------
driver.c
growth.c
igrid_obj.c
main.c
memory_obj.c
spread.c
stats_obj.c
wgrid_obj.c
UTILITY SCRIPTS:
----------------
scan
xlist_functions
In general, the subject modifications are identified within these files by comments
which date the changes and identify them as changes made by D. Donato. There may
be a small number of changes for which such annotations were inadvertently omitted.
In several cases D. Donato modified the comment headers for pre-existing functions
in order to bring these headers into conformance with the conventions of
SLEUTH UGM Version 3.0 Beta; in these cases, the changes, which do not affect
executable or declaratory code, have not been attributed to D. Donato.
The changes made by the USGS Eastern Geographic Science Center in combination with
the Version D changes annotated in these file created SLEUTH-3r, a regionalized
version of the SLEUTH urban-growth model. The Version D changes were not made by
the USGS Eastern Geographic Science Center.
Although these program modifications have been used by the USGS, no warranty, expressed
or implied, is made by the USGS or the United States Government as to the accuracy and
functioning of the program and related program material nor shall the fact of
distribution constitute any such warranty, and no responsibility is assumed by the
USGS in connection therewith.
August 22, 2008
Revised August 19, 2009
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