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incorporate the effects of projected changes in temperature and precipitation.) Prepare <br />documentation of the approach. <br />6.5 Alternate Hydrology Sequences -Generate an ensemble of 100 (SO- to 100-year) traces <br />of alternative hydrology sequences using the methods of the extending historical <br />hydrology developed in subtask fi.3. <br />6.6 CDSS Automation and Testing -Test the extended historical traces in StateCU and <br />StateMod for proper and reasonable operation. Develop Data Management tools, outside <br />of the State's DMI software StateMod input file creation for the hundreds of streamflow, <br />temperature, and precipitation time series that will be generated in Tasks 6 and 7 for the <br />five CDSS basins. Note that the automation will be developed under this task for both <br />the alternate historical hydrology, and the alternate hydrology of ciimate change and <br />forest change. Far the alternate historical hydrology, new StateCU simulations are not <br />required -the StateMod demands based on consumptive use requirements da not change, <br />they are simply re-sequenced to generate historical traces. StateCU will need to be re- <br />simulated once for each climate change scenario in Task 7 and, as noted in that task <br />description, this does not require automation. <br />Expand the existing .net file input and generation routines that were developed for <br />StateCU to create data-centered tools far StateMod that will automate the following <br />tasks: <br />• Read new baseflows that reflect alternative ciimate and forest change hydrology at <br />key gages throughout the subbasin {automated for Task 7) for the selected scenario <br />(see Sub-task 7.8). <br />• Run the StateMod executable to distribute the new baseflaws throughout the tributary <br />subbasins in the five CDSS water resources planning models (automated for Task 7) <br />• Develop StateMod subdirectories for the individual alternate hydrology traces <br />(anticipated to be up to 100 traces for each of the selected scenarios) <br />• Modify/create StateMod response files <br />• Re-sequence the time series of baseflows <br />• Re-sequence the time series of irrigation demands <br />• Run the StateMod executable to simulate subbasin operations for the subbasins' water <br />resources planning models <br />• Output graphical representation of alternate hydrology simulated streamflows versus <br />baseline simulated streamflows for key stream gages to simplify review of StateMod <br />using TSTooI commands that read directly from the StateMod binary output files <br />The graphical output will be used to provide big picture checks of the output from the <br />StateMod models. Further analyses and characterization of the results of the StateMod <br />simulations using TSTooI will be documented in a task memorandum, including tabular <br />and graphical results for groups of alternate hydrologic scenarios. it is possible, although <br />unlikely, that particularly dry sequences may not allow StateMod to maintain mass <br />Colorado River Water Availability Study Scope ] 6 $12812008 <br />CRWAS Phase] Contract Scope EX A Final <br />