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<br />002376 <br /> <br />Fig. 6: The 1980?s floods. 22 longitudinal profiles of conductivity during and after the <br />1980?s floods. April 1983 to December 1990. Sample trip resolution decreases <br />through time. <br />Fig. 7: The 1980?s floods. 22 longitudinal profiles of temperature during and after the <br />1980? s floods. April 1983 to December 1990. Sample trip resolution decreases <br />through time. Penstocks, jet tubes, outflow, inflow, spillway releases indicated <br />with sample date and station name. <br />Fig. 8: 23 longitudinal profiles of conductivity for the 1990?s: September 1991 to June <br />1997, during Spike Flood and spring 1997 high sustained discharge. . Penstocks <br />& jet tubes indicated. <br />Fig. 9: 23 longitudinal profiles of temperature for the 1990?s: September 1991 to June <br />1997, during Spike Flood and spring 1997 high sustained discharge.. Penstocks <br />& jet tubes indicated. <br />Fig. 10: 23 longitudinal profiles of dissolved oxygen for the 1990?s: September 1991 to <br />June 1997, during Spike Flood and spring 1997 high sustained discharge. . <br />Penstocks & jet tubes indicated. <br />Fig. 11: Historical daily discharges at Lees Ferry. <br />Fig. 12: Historical daily temperature values at Lees Ferry, <br />Fig. 13: Historical daily salinity values at Lees Ferry. <br />Fig. 14: Daily salinity values at Lees Ferry since the closure of Glen Canyon Dam. <br />Fig. 15: Instantaneous specific conductance, temperature, and discharge below Glen <br />Canyon Dam. <br />Fig. 16: Instantaneous specific conductance, temperature below Glen Canyon Dam <br />showing effects of internal oscillations in Lake Powell during winter months. <br />Fig. 17: Glen Canyon Dam cross section and location of release structures. <br />Fig. 18: Research flow schedule during GCES Phase II studies. <br />Fig. 19: Effects of fluctuating releases on discharge water quality below Glen Canyon <br />Dam during Research Flow "E". <br /> <br />06/02/98 <br /> <br />DRAFT <br /> <br />PC' ix of 62 <br />