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WSPC12493 (2)
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Last modified
1/26/2010 4:18:34 PM
Creation date
10/21/2007 8:15:16 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.101.10
Description
Colorado River Water Projects - Glen Canyon Dam-Lake Powell - Adaptive Management
State
CO
Basin
Colorado Mainstem
Date
4/1/1996
Author
DOI-BOR
Title
CRSSez - Annual Colorado River System Simulation Model - Overview-Users Manual - Update of 04-01-96 - With Revisions of 09-01-96 - 04-01-96
Water Supply Pro - Doc Type
Report/Study
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<br />OOJ3J2 <br /> <br />Percent Mead Capacity: The percent of Mead capacity is read from <br />the user interface. Based on this percentage, the corresponding <br />elevation is looked up in the capacity table and used to trigger <br />surplus when Mead is above this elevation at the beginning of the <br />year. <br /> <br />Percent Mead capacity from File: <br />trigger is computed outside of EZ <br />or use. A percent capacity value <br />simulation. <br /> <br />Same as above but the capacity <br />based on such things as trends <br />can be read in for each year of <br /> <br />~ <br />, <br /> <br />Probability Surplus: This is the same as a percent Mead capacity <br />trigger except the capacity is computed by EZ based on a use / <br />drawdown period relation for each year. The elevation of Mead <br />that is protected is the shortage elevation at the end of the <br />drawdown period. This surplus method is described in Appendix B. <br /> <br />If a surplus is determined then uses by SNWS, MWD, and CAP are <br />increased to values read from the CONUSE.DAT file as NVsurp, <br />CAsurp, and AZsurp. <br /> <br />r(\ I <br /> <br />~~J <br />n <br />, <br /> <br />Excess to Mexico: <br /> <br />If the forecast runoff is greater than space including any <br />increased surplus use, then the objective Hoover release and <br />scheduled flow to Mexico are increased by the difference. The <br />forecast error may cause an excess Hoover release with out <br />actually filling the system. The actual runoff will be routed <br />through Powell and Mead and any additional excess to Mexico will <br />be caused by the system filling. <br /> <br />Water Banking: <br /> <br />Step 8. Banking operations affect many of the operations in EZ. <br />Appendix A has the draft report of the Water Banking Technical <br />Work Group that describe banking operations in the EZ model. A <br />general overview is given here. <br /> <br />Indexed conservation' banking based is on SALT and SACRO values <br />read from the HYDRO.DAT file adjust schedules by comparing the <br />index values with trigger values and banking amounts read from <br />the user interface. The amount conserved by reduction i.n <br />diversions is credited and scheduled uses revised as above. <br />The interface's banking values form is activated when a banking <br />output file is named. <br /> <br />Fallow banking rea~s the amount to be banked for the year from <br />the CONUSE.DAT file. The amount fallowed is credited and the <br />Other scheduled uses reduced by the amount fallowed. <br /> <br />For a Top Bank, excess to Mexico is first taken from the state <br /> <br />8 <br />
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