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<br />:J .: <br /> <br />PLAN <br /> <br />This proposal was developed by a volunteer committee of meteorologists, hydrologists, and <br />engineers from universities, consulting firms, dam owners, and state and federal agencies. The <br />proposal contains the following components, which will be executed in three phases: <br /> <br /> 1. Data collection (Extreme precipttation data/studies). <br /> 2. Development of EP Database (Verification) <br />Phase I 3. Modeling Workshops (Forum for professionals in field to reach consensus on <br /> which technology would be applicable for predicting an EP atmosphere In the <br /> mountains of Colorado.) <br />Phase II 4. Research!Development of 'ModeVS' for use. <br /> 5. Creation of data for isohyetaJ maps and depth-duration data of EP. Correlation of <br /> data wllh hydrologic records (Including paleo-hydrologic.). <br />Phase III <br /> 6. Peer review and endorsement by other agencies. <br /> 7. Documentation, development of the procedures for use by practitioners. <br /> <br />Phase I is expected to be accomplished in about one-years time. The State Climatologist's Office <br />(SCD) will do the inventory, and develop the EP database. The SCD will also organize and <br />conduct a workshop on modeling of EP at Colorado State University. Additional workshops may <br />be organized for other components. The estimated cost of these Phase I components are <br />$50,000 - $75,000 for the inventory, and $20,000 - $25,000 for the workshops (primarily for <br />reimbursement of travel expenses of participants). Total cost estimate is $70,000 - $100,000. <br /> <br />The research/development component of Phase II is necessary to understand the physical <br />mechanisms of extreme precipitation with elevation, and to develop a modeling program for <br />analyzing/defining extreme precipitation. (The scope of this component is expected to be defined <br />by the workshops.) The time period could be from 3 to 5 years as presently estimated. The cost <br />shall also be defined by the workshops, and dam owners and associates requested to contribute. <br />After the EP analyses and modeling program are developed, the EP data will be produced and <br />correlated with historic records for verification during Phase III. The generated EP data can then <br />be used (after peer review) to develop procedures for use by practitioners. Geographical <br />Information Systems (GIS) technology is available to do this. The time period for this is estimated <br />to be 1 - 2 years. The cost will be defined by the scope of the project and requests for <br />proposals from the industry. <br /> <br />Total estimated time for completion of all phases is 5 to 8 years. The benefits expected from this <br />proposal are: <br />Significant reduced costs for the design of new dams, and for upgrading spillways at <br />existing dams, to the standards contained in the regulations. <br /> <br />Increased conservation pools in reservoirs. <br /> <br />Increased head available for power generation. <br /> <br />2 <br />