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Introduction <br />system of models, databases, and interfaces to help the user analyze different scenarios. These <br />combinations of data, model output, and data visualization were not previously possible without <br />current computer capabilities. This integration of the DSS components into a logical and easy-to-use <br />framework is the core of the decision-making process. Given the complexity of water availability and <br />use in the San Luis Valley, the need for a DSS becomes increasingly apparent. <br />1.5.4 The Colorado River Decision Support System Example <br />As part of the RGDSS feasibility study, the consultant team reviewed the CRDSS to determine the <br />applicability of CRDSS components to the RGDSS. This review was conducted to: <br />• Facilitate the development of compatible databases between the two DSSs in order to <br />minimize future maintenance costs and maximize use of existing tools <br />• Ensure that the appropriate tools developed for the CRDSS are used to the extent possible <br />in order to improve the cost-effectiveness of RGDSS tool development and future <br />maintenance <br />The CRDSS is adata-centered system integrating analysis tools and models that help water users and <br />water managers make decisions. The relational database holds structure and station information, <br />including time series, water rights, and geographic data. Key components of the CRDSS are listed <br />below: <br />• A centralized relational database <br />• A centralized spatial database <br />• The USBR Colorado River Simulation System and Annual Operating Plan models <br />• The State of Colorado consumptive use model (StateCU) <br />• The State of Colorado water resources planning model (StateMod) <br />• A water rights administration tool <br />Additional tools include the following: <br />• A time series tool to view and manipulate time series data <br />• A visual data browser to display GIS coverages <br />• A web-based database interface to allow Internet users access to the CRDSS database <br />The main components are supported by data management utilities (DMIs) that take data from the <br />database and reformat it for models, and specific data products, such as GIS coverages and river <br />network diagrams. The entire system is documented and is accessible via the Internet. <br />1.6 List of Key Reports and Individuals Interviewed <br />Throughout the feasibility study, efforts were made to maximize the use of previous reports and <br />existing data to help define the RGDSS needs. A literature search was performed for publications <br />relevant to the study, and computer searches were conducted of local and national databases, <br />including Colorado State University and the USBR. The most relevant publications were obtained <br />and reviewed. A list of key references is contained in Section 7.0 of this report. <br />a454/report/fmaUintro.doc 07/2&~OS I-II <br />