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Colorado River Water Conservation District <br />Hydro - Climate Studies and Predictions <br />(for select stations) in April to September within the basin to the following hydro- <br />climate indices. These relationships will be calculated for the Dolores -San Juan and <br />Rio Grande basins as well as the basins and specific sub - basins for the Colorado, <br />Gunnison, and Yampa -White River basins inside the state of Colorado.: <br />• Alultivariate ENSQ Index (NISI) for the periods of three and five -year averages <br />in concurrent and leading modes with the observed demand factors. <br />• Pacific Decadal Oscillation (PDO) for similar periods as MEI, <br />• North Atlantic Oscillation (NAO) for similar periods as 1NIEI, <br />• Southern Oscillation Index (SOI) for similar periods as A]EI, <br />• Atlantic Multi- decadal Oscillation (AMO). <br />Deliverables: <br />• Defined quantitative relationships between the HCI's and <br />the basin average monthly precipitation and monthly days <br />with > 0.10" precipitation* (at select stations). This data will <br />be provided in a Microsoft Excel format. <br />++ Defined quantitative relationships between the HCI's and <br />basin average monthly temperatures and number of days <br />with highs > 90F* (at select stations). This data will be <br />provided in a Microsoft Excel format. <br />• A written report outlining the results and a preliminary <br />`guideline' for usage. In addition a presentation of the <br />results, preferably to be presented at the June 2007 Cy \'(-'B <br />board meeting. <br />*Note: The use of 90F and 0.10" for meteorological parameters for <br />defining demand may be changed on a basin and /or sub -basin basis <br />based on the climatology of the basin /sub- basin. <br />Task Cost estimates <br />The cost for each of the four tasks is presented below as a lump sum amount: <br />Task A: Development of the hydro - climate indices <br />and basin demand relationships: <br />Task B: Development of the hydro - climate indices <br />response and basin demand relationships: <br />Report from results and `guidelines' of Tasks A anc <br />CWCB board meeting): <br />Total: <br />- seasonal basin response <br />$ 14,500 <br />— two -year seasonal basin <br />$ 13,000 <br />l B (written and verbal at <br />$ 10,000 <br />$ 37,500 <br />Estimated time of completion is projected to be 90 days after NTP is provided. <br />HDR Page 4 <br />