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We initially attempted to calibrate the entire new portion of the network, but found that our computed flows at Tia Juana Bottom were not matching our recorded flows. From reviewing the flow data of the Duchesne and White, it was determined that the major peaks in flow at Tia Juana Bottom were attributed to the Duchesne and White Rivers and not from flow released at Flaming Gorge. Therefore, we decided to calibrate the total network in four phases as follows: 1. Green River from Flaming Gorge to Tia Juana Bottom excluding the flow of the White and Duchesne Rivers. 2. Flow of the Duchesne River only from the Duchesne recording station to Tia Juana Bottom. 3. Flow of the White River only from the White River recording station to Tia Juana Bottom. 4. Composite of 1, 2, and 3. Using this approach, we were able to isolate reaches where calibration was poor and concentrate on each of these reaches individually. The method proved successful and we were able to identify travel time problems associated with the Duchesne and White Rivers. After solving the travel time problem, the traces seemed to match well at every point except where there was a major storm event on the Duchesne or White Rivers. We finally came to the conclusion that the major differences between the computed and recorded flow at Tia Juana Bottom could be attributed to other sources, such as localized rain storms which occurred between the gage and the confluence of the Green River. Disregarding the short term effects of local flows in the area upstream of Tia Juana Bottom, the SSARR model as presently calibrated does accurately reflect changes in flows from Flaming Gorge Reservoir. Calibration of each node can be considered good down to the Jensen gage. Calibration downstream of Jensen should be considered as fair and does display some cumulative error which effects the calibration for nodes downstream of Jensen. This error is not significant and effects the timing of peaks more than their magnitude. VI. CALIBRATION RESULTS Tables 4-5 and figures 6-8 display results for each of the sites that are currently calibrated based upon differing releases from Flaming Gorge. Printouts of calibration results are included in Appendix B. 15