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Hydroloav <br />GREEN RIVER HYDROLOGY <br />Flow records for the Green River at Jensen have been kept <br />since 1946. Total annual flow data in acre feet for this gauge <br />is presented in Figure 2. <br />Green River at Jensen <br />6 <br />5 <br />n <br />F- <br />l~ <br />U <br />>~ 4 <br />J ~., <br />L- c <br />03 <br />J <br />Q <br />Z <br />Z <br />Q 2 <br />J <br />Q <br />H <br />O <br />H <br />o -}-- <br />1.945 <br />1950 1955 1960 1965 1970 1975 1980 1995 1990 1995 <br />Figure 2. Total annual flow (acre feet) by water year for the <br />Green River at Jensen, Utah. The total for 1993 is estimated <br />since complete data for-the later portion of the summer were not <br />available at time of analysis. <br />The data in Figure 2 indicate that large differences in <br />total flow occurs between years, especially in the 1950's, early <br />1960's and mid 1980's. The late 1960's and 1970's show <br />remarkable similarity from year to year. Total annual flow on <br />the Green River ranges from 1 to more than 5 million acre feet, <br />with the largest water years in the period of record occurring in <br />1983, 1984, and 1986, and the lowest flow year being 1963. We <br />assume that the low flow for 1963 was due to the filling of <br />6 <br />