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DSS Component Assessment <br />• netresev -This DMI is used to create net evaporation time series to be used with <br />StateMod. <br />• watright -This DMI queries the database for water rights information and produces <br />reports in several formats. It also creates water rights input files for StateMod. <br />• tstool -This DMI is a tool for manipulating and displaying time series data. Time series <br />can be accessed from the database or from StateMod files. Tstool allows export of time <br />series to several formats including StateMod, popular spreadsheets, and ASCII. <br />4.2 Other Components Identified through the Needs Assessment <br />The above sections outline how the RGDSS can be developed in part from the extension of data and <br />components developed during the CRDSS. However, needs identified for Rio Grande basin water <br />management also require data and analysis capability not currently found in the CRDSS. In some <br />cases, completely new functionality will need to be developed and added to the system. The <br />following new components were identified during the needs assessment phase of this feasibility <br />study. <br />4.2.1 Big River Model (Interstate) Simulation <br />The Upper Rio Grande Water Operations Model (URGWOM) is currently being developed as a <br />multi-agency effort to provide planning and operations support to water managers in the basin. This <br />effort is led by the U. S. Army Corps of Engineers (COE), and is supported by the U. S. Bureau of <br />Reclamation (USBR) and the U. S. Geological Survey (USGS) in cooperation with the U. S. Fish and <br />Wildlife Service (USF'WS), the Bureau of Indian Affairs (BIA), and the International Boundary and <br />Water Commission (IBWC). <br />The objective of this project is to facilitate more efficient and effective management of the Rio <br />Grande basin water supply by developing a computer model capable of simulating water storage and <br />delivery in the upper basin. RiverWare, a software package from the University of Colorado, has been <br />chosen by the multi-agency team as the framework for model development. <br />RiverWare is a reservoir operations and river system modeling tool that provides a GUI to develop <br />and run simulations. A river network water balance is solved by one of three methods: 1) a <br />simulation-based approach, 2) a rule-based approach, and 3) an optimization approach. A GUI allows <br />the user to build the river network, define the physical system via data inputs, and develop the <br />solution parameters. Dependent upon the method and the objectives of the simulations, time steps <br />vary from monthly to hourly. Planning studies in other basins using RiverWare currently operate at a <br />monthly time step. Daily operations often involve real-time demand for power and water and require <br />the user to update data more frequently. RiverWare does not currently allow simulation of the prior <br />appropriation doctrine. <br />4.2.1.1 Implementation <br />The URGWOM project is expected to continue over the next four years. Currently, development of a <br />conceptual RiverWare model is underway in the Rio Chama as a test basin. The model test case was <br />scheduled to be complete by the end of 1997. Development of a full implementation of the basin <br />model is scheduled for 1998. A water ownership and accounting component is not currently in <br />RiverWare, but is under development as part of URGWOM. <br />a454/report/final/comp. doc 07/2&~OS Y-9 <br />