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<br />Resource Planning Model. Potential methods that will be discussed in the interviews <br />include design drought, simulation, flow frequency, etc, <br /> <br />10.1.4. Prepare a draft Data Extension Feasibility and Evaluation Methodology <br />memorandum describing the results of this task. The memorandum is expected to <br />contain approximately 5 pages of text and summarize the activities of this Task. <br /> <br />10.1.5. Incorporate State comments into a final memorandum, <br /> <br />10.2. Evaluate Extension of Historic Data Based on the goals of the data extension identified in <br />previous Tasks, regression techniques or models will then be reviewed to determine which <br />method can be employed to meet the CRDSS Water Resource Planning Model requirements. <br />This subtask would include the following: <br /> <br />10.2.1. Summarize historic streamflow, temperature and precipitation data availability on the <br />western slope. Using the CRDSS database. tabulate the number of stations, their <br />period of record. and percent complete by model area (Yampa. White, Colorado, <br />Gunnison, San Juan/Dolores). Identify stations \vith significant record that may not <br />be included in the existing Phase IIIa Water Resource Planning Models. <br /> <br />10.2.2. Recommend up to 2 period of records which might be used consistently for each of <br />the CRDSS planning models. Discuss and contrast the advantages and disadvantages <br />of each by basin and for the entire western slope. <br /> <br />10.2.3. Recommend a regression technique or model to fill or generate missing historic <br />streamflow, temperature and precipitation records. <br /> <br />10.2.4. Recommend a regression technique or model to fill or generate missing historic <br />diversion records. <br /> <br />10.2.5. Recommend a regression technique or model to fill or estimate demands. <br /> <br />10.2.6. Prepare a draft Extension of Historic Data memorandum describing the results of this <br />subtask. The memorandum is expected to contain approximately 5 - 10 pages of text, <br />summarize the activities of this Task and describe: <br />· if historic data can be extended, <br />· the method used to extend historic data and <br />· the accuracy to be expected from extending historic data.. <br /> <br />10.2.7. Incorporate State comments into a final memorandum. <br /> <br />10.3. Evaluate the Development of Stochastic Data Current stochastic models which are <br />reasonably available will be reviewed to determine which might be employed to meet the <br />requirements of the CRDSS Water Resource Planning Model. This subtask would include <br />the following: <br /> <br />10.3,1. Using information developed in previous Tasks, characterize stochastic data <br />development and use (research, reliability assessment. etc.) for its applicability to a <br />multi-basin system such as CRDSS. This subtask will focus on practical proven <br />techniques, rather than a research oriented development tool. Federal agencies will <br /> <br />C:I w\erdss\seopelboy IIIblerdss3 .doe <br /> <br />. .-~. . <br /> <br />5/30/97 - Page 14 <br /> <br />0761 <br />