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Calibration Log <br />During the calibration process, a log of the change s made to the MODSIM prototype was maintained. <br />The following is a summary of the calibration log. <br />Date Description <br />12-14-94 Changed the system efficiencies for the Uncompahgre Project Canals from 0. 6 <br />? <br />(GUNMOD) to 0.45. This modification was made to better replicate actual histori c <br />diversions as determined from the CRDSS database. <br />12-28-94 Changed the procedure for freezing model links after the natural flow solutio n <br />? <br />phase. There is no longer a constraini ng upper bound on a natural flow link durin g <br />the storage allocation step. This enable d natural flow demands to receive "free " <br />reservoir releases resulting from flood and other operational release targets. <br />Relocated the GUNMOD inflows for the North Fork at nodes 21033 and 21035 to a <br />? <br />location above Paonia Reservoir. <br />Temporarily removed non-account reservoi rs (Fairview and Cerro) from the mode l <br />? <br />to better analyze the delivery of Project 7 water from the Cimarron Canal and th e <br />Gunnison Tunnel. <br />Added demands to several links in the Fruitland Mesa area. These were missin g <br />? <br />from earlier model versions. <br />Tested Blue Mesa Reservoir operations by using historic end-of-month storag e <br />? <br />contents from USGS Water Supply Papers as target storage levels. Determine d <br />need to verify the monthly storage da ta provided by the DNR and stored in th e <br />CRDSS database. <br />Modified the protocol for operating Project 7 to take Cimarron Canal direct flow <br />? <br />first, UVWUA storage in Blue Mesa (v ia the Gunnison Tunnel) second, and storag e <br />in Cerro Reservoir last. <br />Modified linkages to insulat e the UVWUA account in Bl ue Mesa Reservoir and th e <br />? <br />M&I account in Ridgway from the operationa l releases specified by target storag e <br />levels. <br />12-29-94 Tested alternative storage targets for Taylor Park Reservoir. <br />? <br />Filled in data gaps for unit evaporation rates for Taylor Park, Blue Mesa, Ridgway , <br />? <br />and Paonia reservoirs for 1970 through 1990. <br />Tested alternative storage targets for Ridgway Reservoir by setting at maximum <br />? <br />storage level. <br />Added a new link on the North Fork of the Gunnison to check against the gage d <br />? <br />flows of the North Fork at Somerset. <br />2 <br />A275 02.23.94 1.15-27 Fosha, Ritsch <br />