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<br />JOHN MARTIN RESERVOIR PERMANENT POOL SIMULATION <br />COMPACT YEARS 1949-73 <br /> <br />e- <br /> <br />COLORADO WATER CONSERVATION BOARD <br />November 11, 1974 <br /> <br />EXPLANATION OF COLUMNS <br /> <br />r~ COMPACT MO Month 1 is November Month 7 is May <br />) Month 2 is December Month 8 is June <br />...- , <br />U' Month 3 is January Month 9 is July <br />W Month 4 is February Month 10 is August <br />~~ Month 5 is March Month 11 is September <br /> Month 6 is April Month 12 is October <br /> COMPACT YR is the compact year. <br /> AVG CONSV STORAGE AF is the average historic conservation storage <br /> in John Martin Reservoir in acre-feet during the month. <br /> <br />. <br /> <br />PERM POOL INFLOW AF is permanent pool inflow or the state credit <br />water in acre-feet during the month that would have been delivered <br />to John Martin Reservoir in the state's transfer plan. These values <br />are slightly different from those in table 4 of the October 16, 1974, <br />summary because they were calculated on a mon~1ly basis rather than <br />on an annual basis. <br /> <br />NET EVAPORATION AF is the monthly net evaporation from the permanent <br />pool in acre-feet. It was computed by applying 0.7 times the pan <br />evapcration less the precipitation to the additional area caused by <br />the average permanent pool. Values used for the pan evaporation and <br />precipitation are from NWS records when available and are shown in <br />the attached tables. The official November 1972 area-capacity was <br />used. <br /> <br />PERM POOL STORAGE AF is the permanent pool storage at the end of the <br />month. It was determined by adding the permanent pool inflow to the <br />last month's storage and deducting the evaporation. In this simula- <br />tion the maximum allowable size Iwas 15,000 acre-feet except that the <br />flood control storage (storage above elevation 3,851 feet above MSL <br />or in excess of 350,951 acre-feet) could not be invaded in excess of <br />10,000 acre-feet. <br /> <br />PERM POOL AREA AC is the additional water surface area in acres <br />caused by adding the average permanent pool to the average conserva- <br />tion storage. <br /> <br />.- <br /> <br />PERM POOL SPILL AF is the amount of water in acre-feet that had to <br />be spilled so that ,the permanent pool did not exceed its maximum <br />allowable size. <br />