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<br />001981 <br /> <br />CHAPTER 3 <br />COMPUTER BASED MODELING TOOLS <br /> <br />RiverWare <br /> <br />Hydrologic oomputer models are built using either a programming language or a model building tool. <br />Models built with a programming language such as FORTRAN tend to be site-specific and inflexible. <br />Modeling tools are usually more general in application and more flexible. RiverWare is one such <br />tool. <br /> <br />RiverWare Backaround and Description <br /> <br />RiverWare was developed by the Center for Advanced Decision Support (CADSWES) at the <br />University of Colorado. Major funding was provided by the Bureau of Reclamation and Tennessee <br />Valley Authority. RiverWare is a generic hydrological modeling tool that utilizes an object-oriented <br />design and a graphical user interface (GUl) to allow users to develop data-driven, variable time-step <br />models, for both planning and operational uses. Due to its flexible and extensible design, it can be <br />customized to fit specialized modeling needs for any river system. One of the many unique features <br />of RiverWare is its ability to solve a user developed river basin network with different oontrollers or <br />solution techniques. Currently there are three different oontrollers: simulation, rule-based simulation, <br />and optimization. RiverWare has been in development since 1993. RiverWare currently runs only on <br />a Sun Solaris based platform. <br /> <br />A model of a river system network is constructed by placing objects from a palette onto a workspace <br />using the graphical user interface. Objects in RiverWare represent the features of a river basin. The <br />following objects are supported by RiverWare since release of version 2.0: <br /> <br />. Storage Reservoir <br />. Level Power Reservoir <br />. Slope Power Reservoir <br />. Pumped Storage Reservoir <br />. Reach <br />. Aggregate Reach <br />. Confluence <br />. Canal <br />. Aggregate Diversion <br />. Aggregate Distribution Canal <br />. Diversion Object <br />. Groundwater Storage <br />. Water User <br />. Stream Gage <br />. Thermal Object <br />. Data Object <br /> <br />DRAFT - SJRIP Hydrology Model Documentation <br />June 18, 1999 <br /> <br />42 <br />