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<br />lJ00053 <br /> <br />interface for ST A TEMOD. Use of ST A TEMOD would require that a <br />graphical user interface be developed, <br /> <br />INPUT/OUTPUT,CHECKING: <br /> <br />MODSIM <br />V <br /> <br />STATEMOD <br />VV <br /> <br />Model application efficiency and usability of a model is greatly affected by the <br />organization and labeling of the input and output files, and the ability of the model <br />to check reasonableness of input data. The DNR team believes that many of the <br />difficulties that have been experienced in setting up the MODSIM model for the <br />Gunnison River Basin relate to the difficulty of understanding and using input <br />files and output files. While we agree with the consultant team that the MODS 1M <br />interface could be designed to relieve some of the problems related to poorly <br />organized input and output files, the DNR team has found that the present <br />MODSIM interface does not allow a user much understanding of the model <br />application. <br /> <br />State representatives have found that, even without a graphical interface. content <br />and organization of STATEMOD input and output files lends to efficient <br />application of the model. ST A TEMOD application is enhanced by having <br />consistent formats and locations for information on diversion, instream flow and <br />reservoir structures and their associated rights, having special operating rules <br />(exchanges, project releases, carrier systems, etc,) in one file, and lists of water <br />rights in priority. STATEMOD output files show river flow for instream rights, <br />various types of water (storage, priority, exchange) diverted and river conditions <br />at a given modeled structure, reservoir water balance, etc. that enhance model <br />development and understanding. <br /> <br />UNDERSTANDABILITY, <br />USABILITY & <br />MAINTENANCE: <br /> <br />MODSIM <br />VV <br /> <br />STATEMOD <br />VVV <br /> <br />BASIS: <br /> <br />The DNR team believes that the many problems the consultant team has <br />experienced in developing the water resource planning model prototype <br />relate to the complex solution concepts of the MODSIM model. Answers <br />have typically not been readily given when the DNR team identifies a <br /> <br />4 <br />