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<br />C) <br />c:,') <br />M <br />........ <br />.....:t <br />~ <br /> <br />147 <br /> <br />In addition to the statistical information routinely printed out, <br /> <br />the main program may be instructed to perform running averages and pro- <br /> <br />duce distribution plots of any desired system variable. <br /> <br />The theory and limitations of the algorithms used to model stream- <br /> <br />flows, stream salinity, and reservoir routing have been presented in <br /> <br />Chapters 2 through 4. <br /> <br />The methods used to model streamflow adjustments for depletions <br /> <br />upstream of Lake Powell and the corresponding effects upon stream <br /> <br />salinity are important in regard to the interpretation of system <br /> <br />response. Subroutines corresponding to these operations are described <br /> <br />in the sections which follow. <br /> <br />5.2.1 ADJTF: Flow Depletion Adjustments <br /> <br />This subroutine adjusts the synthetic monthly tributary flows <br /> <br />for depletions occurring in each tributary sub-basin. Constant <br /> <br />monthly values for exported water, water depleted within the basin for <br /> <br />municipal and industrial uses, and water consumed by irrigated agri- <br /> <br />culture are inputs to the subroutine. Depletions are subtracted from <br /> <br />the streamflow for each month and any remaining flows routed down- <br /> <br />stream. If demand exceeds streamflow, the entire flow is consumed and <br /> <br />the sub-basin outflow for that month is zero. <br /> <br />These depletion adjustments are summarized by Equation (5.1). <br /> <br />(5.1) <br /> <br />t~ = <br /> <br />NY - DPL - EXP - AGI <br />t m t m t m t m' <br /> <br />where: <br /> <br />y <br />tOm <br /> <br />= the adjusted flow in tributary t, year y, and <br />month m; <br /> <br />