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<br />.--i <br />I In~ <br /> <br />,. <br />, <br /> <br />/ <br /> <br />/. " ./..:. <br /> <br />r /' <br /> <br />, <br /> <br />.Comparison of Results from Simulation of Colorado River Operations <br />CRSS VB. CRSP <br /> <br />ill! <br /> <br />JANUARY <br />1981 <br />fill. <br /> <br />14.829 <br /> <br />DESCRIPTION <br /> <br />1, <br /> <br />Uodepleced Flow Above Lake Powell <br /> <br />2. <br />3. <br /> <br />Cleo Canyon D~ Relea..a <br />Bet Upper Ba81o. Depletion (11 - 12) <br /> <br />'5,406 <br /> <br />9.423 <br /> <br />4. <br /> <br />Scheduled Upper B..ln D~pl.t1oQ. <br /> <br />5,434 <br /> <br />\ <br /> <br />5. <br /> <br />'rdbut.a.ry Inflow-.<a.Q. Canyon t.o Boovu. <br /> <br />817 <br /> <br />~. <br /> <br />DepleCion--Clen Canyon to Hoover. <br /> <br />268 <br /> <br />DECEMBER <br />1984 DIFFERENCE <br />~~ (eRSS-CRSP) <br /> <br />15,056 <br /> <br />.227 <br /> <br />551 <br /> <br />42 <br /> <br />29. <br /> <br />EXPLANATORY NOTes <br /> <br />CRSP model inflow data vas depleted by the 1968 level. of depletion. <br />Undepleted flov 18 e6t1mated by odd1o& 2.771 mal (c.t1C4te4 1968 <br />depletion) to the average of the inflow daca for years 1906 through 1979. <br />CRSS data vas the natural flov deta base for year. 1906 through 1983. <br />(official version as of the study date) <br /> <br />This figore includes the effect of evaporation. surface aad baak 8[Qrag~ <br />changes 1n reservoirs. and consu=ptlve use In the Upper Basin aa . <br />etmulated by each model. <br /> <br />These figures are the average yater depletions for the study period 198$ <br />thr~ugh 2040 imposed respectively on the CRS? and CRSS model. for th1s <br />comparison. They differ from the actual depletions In that they include <br />an averaga anticipated amount of evaporation. In CRSS. the scheduled <br />depletions are usually reduced to some degree by vater ahortage., <br />particularly in the headyater reaches. <br /> <br />This figure is the apparent average depletioD over the period 1985 through <br />2040. It vas computed by ~lng all other Inflcvs, outflows, and storas. <br />changes for the Glen Canyon to Hoover reach. The figure thu. derived <br />agrees closely with the average scheduled demands u8ed witb botb the CRSP <br />and CRSS studies. . <br /> <br />~ <br />.~., . - ~ <br />._1-'-0;' . <br />, <br /> <br />co <br />Q <br />N <br />00 <br /><:.0 <br />en <br /> <br />. <br /> <br />7. Lake Head Evaporation (Estimated) 726 803 7-7 <br />8. L.ke Head--AnDual Storage Change (142) (151) (9) <br />7. Net Inflow--Glen Canyon to Hoover 25 (95) (120) . <br /> (IS - 16 - #7 - 18) . <br />10. Hoover Releases (Also 12 + '9) 9.448 9,879 431 <br />11. Depletioo--Boover to Parker Daa 224 207 (17) MWD and. CAP depletions are itemized separately. <br /> <br />9.974 <br /> <br />5,082. <br /> <br />(324) <br /> <br />5,476 <br /> <br />854 <br /> <br />(23) <br /> <br />297 <br /> <br />..~~. <br /> <br /> <br />J <br />/ <br /> <br />1 <br />