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maintained in a conceptual model format in GMS to provide flexibility in model <br />implementation and to decrease complexity in the streamflow routing (SFR1) DMI. A tool will <br />be developed to assemble individual polyline segments into a single ordered polyline within <br />ArcGIS, based on the name field. This processing step is only necessary during the conceptual <br />model development, and will change infrequently. <br />The new DMI will incorporate the functionality of programs build and ModEX. It will be <br />developed using Visual Basic for interface elements, linked with FORTRAN code for <br />computational tasks, including routines that are currently included in ModEX. Existing Perl <br />routines may be adapted when the modifications to remove RGDSS-specific features, being <br />undertaken by the State, are complete. This new DMI will merge stream geometry and <br />property information with time series flows into stream flow routing package files. <br />This task will produce a new DMI that will: <br />• generate SFR1 package control files, <br />• generate control and log files summarizing operations, <br />• utilize data from the Modeling GIS Repository, <br />• conduct error checks similar to the current RGDSS process, and <br />• generate support files to allow post-processing of cell-by-cell flow files to determine the <br />water budget for specific stream reaches <br />Four meetings are anticipated for this task. A technical memorandum documenting the process <br />and programs that were developed or modified for this task will be prepared. This <br />memorandum will include comprehensive user documentation illustrating application of the <br />package and presenting underlying computational algorithms. Example data sets, with control <br />files, input, output and log files will be included. Full source code and an installation CD with <br />all necessary libraries will be included. Copyrights for these programs will reside with the <br />State. Source code will include embedded comments that will be provided on the CD, along <br />with documentation of all information necessary to re-compile the applications. Third party <br />development libraries may be used for some functions within these programs, and these will <br />also be identified. This deliverable is anticipated to be less than ten pages in length, plus <br />electronic attachments. <br />2.4 Process Integration and ModGUI Modifications <br />Overall integration of the enhanced process will be conducted under this task, including minor <br />development activities on support packages for generation of model graphics. Program <br />ModGUI serves as the central component to organize workflow in the RGDSS data centered <br />modeling process including editing of control files, managing execution of individual packages <br />and examining log files. This central role for ModGUI will continue in this proposed modeling <br />process for the SPDSS, with enhancements recommended to manage new or modified DMIs <br />including: <br />• modifications to StatePP (including the integrated program AGG function), <br />• the new stream process, <br />• data transfer from the Modeling GIS Repository, and <br />• to facilitate post-processing of model files. <br />