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WSPC02928
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Last modified
1/26/2010 11:33:08 AM
Creation date
10/9/2006 3:39:41 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8283.100
Description
Colorado River Computer Models - Colorado River Simulation System - Reclamation - CORSIM
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
10/1/1981
Author
DOI-BOR
Title
Colorado River Simulation System - An Executive Summary
Water Supply Pro - Doc Type
Report/Study
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<br />001015 <br /> <br />3. Evaporation rates for each month for <br />all reservoirs <br />4. Maximum and minimum reservoir <br />constraints <br />5. Maximum and minimum outlet <br />limitations <br />6. Initial reservoir content and salinity <br /> <br />Demand Data <br /> <br />Varying levels of basin development may be <br />studied by modifying the demand data base. <br />The demand data base contains characteristics <br />of each demand and allows for a breakdown of <br />a demand into 10 water users. Since there may <br />be'~ to 10 demands per reach, it is possible to <br />have as many as 100 users per reach. The de- <br />---- ---------. <br />mand data base is not input to the model di- <br />rectly but is input to the SMDID (Simulation <br />Model Demand Input Data) program. With the <br />demand data base as input, SMDID generates <br />the demand data for CRSM. SMDID not only <br />generates the demand data but also produces <br />summaries of projected depletion by water use <br />(i.e., irrigation, M&I, power, etc.), State, and <br />basin. These summaries provide a useful for- <br />mat for documenting the level of development <br />modeled by a particular run of CRSM. <br /> <br />Hydrology Data <br /> <br />The hydrology data input to CRSM is gener- <br />ated by running the program MHYDRO with <br />the hydrology data base and control data as in- <br />put. The hydrology data base contains calcu- <br />lated natural flow and salt and natural reach <br />gains and losses of flow and salt from 1906 to <br />1978; natural is defined for this purpose as <br />historical data adjusted for human develop- <br />ment. This adjustment is made to estimate <br /> <br />what the flows would be without present devel- <br />opment on the river. The data for this data <br />base were developed from historical stream- <br />flow records, climatological records, cropped <br />acreages, calculated evaporation from reser- <br />voirs, and recorded diversions and return <br />flows. The data base has been developed for <br />the periods 1906-1978 and will be extended peri- <br />odically. The program MHYDRO not only <br />generates the hydrology data for CRSM but <br />also may produce tables, correlations, plots, <br />and other reports at the option of the user. <br />MHYDRO also performs the updating of the <br />hydrology data base. <br /> <br />With most applications of the CRSS, it is im- <br />portant to evaluate the reaction of the system to <br />high and low runoff periods coupled with dif- <br />ferent periods of development. This evaluation <br />is currently performed by making several runs. <br />With each run, the beginning year ofthe hydrol- <br />ogy is shifted ahead "n" years. For example, if <br />the model run were to be from 1981 to 2030 and <br />"n" was set equal to 5, the first run would begin <br />with 1981 using the 1906 hydrology, 1982 using <br />the 1907 hydrology, etc. The second run would <br />begin with 1981 using the 1911 hydrology and so <br />on. Shifing the beginning year by "n" years <br />each run and placing the earlier years to the tail <br />end of the hydrology allows for 73 divided by n <br />model runs to be evaluated. <br /> <br />Tapedit (Output Summary <br />Program) <br /> <br />The TAPEDIT program was developed to save <br />both manpower and computer resources. With <br />TAPEDIT, the user may select certain param- <br />eters to be summarized in either tabular or <br /> <br />10 <br />
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