Abstract
A statewide water resources data bank and an associated integrated program for water-resource systems (IPWRS) is being developed for the State of Colorado. IPWRS is to be an open-ended system of digital computer modules unified under the control of an executive pro gram. This executive program will permit an analyst to prescribe which modules should be exercised, the order in which they are to be used, and the form in which output is to be presented. This computing sys tem provides a valuable tool for the management of the limited-water resources of the state. This paper presents a summary of the philosophy behind IPWRS and the results of a phase of the program concerned with the prediction of streamflow runoff in mountainous regions. The prediction involves the use of a self- calibrating snowmelt simulation model, which is one of the digital computer modules in the IPWRS system.
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