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<br />Station - 06600500 FLOYD RIVER AT JAMES, IOWA <br />1997 JAN 7 15:~5:09 <br /> <br />ANNUAL FREQUENCY CURVE PARAMETERS <br /> <br />LOG-PEARSON TYPE III <br /> <br />FLOOD BASE <br /> <br />LOGARITHMIC <br /> <br />---------------------- ------------------------------- <br /> <br />EXCEEDANCE <br />DISCHARGE PROBABILITY <br /> <br />MEAN <br /> <br />STANDARD <br />DEVIATION <br /> <br />SKEW <br /> <br />------------------------~------------------------------ <br /> <br />SYSTEMATIC RECORD <br />BULL.17B ESTIMATE <br /> <br />0.0 <br />0.0 <br /> <br />1.0000 <br />1.0000 <br /> <br />3.5553 <br />3.5374 <br /> <br />0.4642 <br />0.4377 <br /> <br />0.357 <br />0.075 <br /> <br />ANNUAL FREQUENCY CURVE - - DISCHARGES Aj[' SELECTED EXCEEDANCE PROBABILITIES <br />ANNUAL ;' EXPECTED 95-PCT CONFIDENCE LIMITS <br />EXCEEDANCE BULL.17B SYSTEMATIC PROBABILITY' FOR BULL. 17B ESTIMATES <br />PROBABILITY ESTIMATE RECORD ' ESTIMATE LOWER UPPER. <br />0.9950 275.9 327.3 234.9 143.1 441.5 <br />0.9900 349.4 396 .6 307.8 190.3 541. 8 <br />0.9500 671.3 694.5 631.5 415.6 960.9 <br />0.9000 955.3 957.2 919.2 629.9 1318.0 <br />0.8000 1471.0 1442.0 1442.0 1037.0 1958.0 <br />0.5000 3404.0 3371.0 3404.0 2596.0 4458.0 <br />0.2000 8018.0 8626.0 8187.0 6026.0 11360.0 <br />0.1000 12640.0 14630.0 13170.0 9149.0 19220.0 <br />0.0400 20640.0 26420.0 22270.0 14170.0 34330.0 <br />0.0200 28430.0 39340.0 31650.0 18760.0 50340.0 <br />0.0100 37990.0 56890.0 43840.0 24140.0 71360.0 <br />0.0050 49610.0 80460.0 59640.0 30410.0 98530.0 <br />0.0020 68700.0 123900.0 87760.0 40260.0 146200.0 <br /> <br />PEAKFQ <br /> <br />23 <br /> <br />DRAFT .1130/98 <br />