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<br />. 1 <br />/. ~I;"",'r!' <br />If' ~l> I <br />h" <br /> <br />002229: ~: <br />~ ~ . <br />1- <br />through a comparison of the gaged streamflow, Phase II modeled streamflow and the <br />modeled streamflow resulting from this task. These graphs will be of monthly data for the <br />modeled study period of 1975 through 1991. This subtask will not involve re-calibration of <br />the model since it is the calculated rather than the historic scenario that is being adjusted. <br />~-MorljfjJ rp.lpuani'~(!l)""":t'-q -Lth"Il'fl~lL..d.\.!.~IJ~H~d'pI~l~~4lw:J t.bi.,:, F'l~+.....I,. '! ....t'Cl <br />~ tlll( ah....Jt tV" uluch). <br /> <br />Deliverables (referencing subtask identifiers): <br />2b 1 Modified "baseline" scenario input data for the 16 reservoirs in the Colorado River <br />Basin model reflecting changes agreed on with the CROSS management team. <br />2b2&2b3 Documentation of the subtask through a 5-6 page memo and associated changes made <br />to the on-line documentation. (Add time and dollars for draft review process by <br />state). <br /> <br />Cost Estimate. <br />Task 2b 1 4 hours @ $82/hr = <br />Task 2b2 4 hours @ $ 82/hr = <br />Task 2b3 4 hours @ $ 821hr= <br />Total Approximate Subtask Cost <br /> <br />$ 330 <br />$ 330 <br />$ 330 <br />$1,000 <br /> <br />Schedule. <br />Given Mr. Bethel's 20 hour per week time commitment to the CROSS Project, it is <br />anticipated that the above work would be perfonned over the course of the week of March <br />7th. <br /> <br />Subtask LR-2c Revisions to Transmountain Diversions in Historic and Calculated Scenarios <br /> <br />Objective' <br /> <br />It has been observed that demands for transmountain diversions in the historic and <br />calculated scenario may not have been consistently generated or adequately reflect <br />historic operations. Changes are necessary to improve the modeling base. <br /> <br />c;...," , <br /> <br />Scope of Work <br />2c.l 1l evie:w.the modeled demands, and modeled output for the transmountain diversions in the <br />historic and calculated Colorado River scenarios in light of historic records of diversions <br />(assumed to be readily available records from the CROSS database). Generate <br />recommendations for suggested changes to the modeled transmountain demands or associated <br />baseflows to improve the modeling in these scenarios. Summarize the infonnation gained on <br />the demands and the modeling change recommendations in a 5-6 page memo. <br />2c.2 In a 4 hour meeting with CROSS management and/or CWCB staff, review and finalize <br />changes to be made to the modeled operation of each of the transmountain diversions. <br />2c.3 Modify the model's input data (in the base model data directories on cando) to reflect the <br />agreed on changes to the modeling of the transmountain diversions. It is anticipated that <br />modifications to the statemod program would not be necessary and that changes would be <br />made to the input data files for the historic and calculated scenarios. Rerun both scenarios <br />by first regenerating baseflows. It. d. h';' -0/4'177. . <br />2c.4 Prepare a subtask 2c doculJ1entation ~ that summarizes the change methodology, <br />assumptions and results. The results of these changes will be summarized through a <br />comparison of the gaged transmountain diversions, Phase II modeled transmountain <br />