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<br />RESULTS AND DISCUSSION <br /> <br />Green River Flows <br /> <br />Water releases out of Flaming Gorge Dam into the Green River were fairly well- <br />regulated in 1987 to provide previously-negotiated flow regimes for other <br />ongoing studies. Flows out of Flaming Gorge Dam were gradually reduced from <br />mid-June to about mid-August, to allow quantification of size and numbers of <br />backwaters at various flows using remote sensing techniques, and to determine <br />which flows maximize backwater development. Daily average flows in the Green <br />River from June to November 1987 and July to October 1988 are shown in figure <br />12; sampling periods are highlighted to show flow conditions. <br /> <br />Physical and Chemical Parameters <br /> <br />Water temoerature <br /> <br />Main River. - In 1987, water temperature initially increased from early June <br />to a high in early August at Island Park, Jensen and Ouray, then decreased <br />steadily to the last sampling period in mid-November. During most sampling <br />periods water temperature increased from Island Park downstream to Ouray. <br />However, in mid-November, main river water temperature was lower downstream. <br />Main river water temperatures ranged from 4.54 to 20.81 .C in 1987 and 10.59 <br />to 23.3 .C in 1988 at Island Park, 3.43 to 22.55 .C in 1987 and 10.63 to <br />23.95 .C in 1988 at Jensen, and 1.72 to 24.18 .C in 1987 and from 11.74 to <br />24.31 .C in 1988 at Ouray. Main river water temperatures generally were <br />warmer downstream in 1988, with the maximum water temperature recorded earlier <br />in the season than in 1987. Maximum water temperatures among main river sites <br /> <br />25 <br />