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Last modified
11/23/2009 10:50:51 AM
Creation date
10/4/2006 9:15:44 PM
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Template:
Floodplain Documents
County
Statewide
Community
State of Colorado
Title
Users Manual for Program PEAKFQ, Annual Flood Frequency Analysis Using Bulletin 17B Guidelines
Date
1/30/1998
Prepared By
USGS
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />station - 01373500 FISHKILL CR AT BEACON NY <br />1997 JAN 7 15,55,09 <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 />3.3684 <br />3.3684 <br /> <br />0.2456 <br />0.2456 <br /> <br />0.730 <br />0.668 <br /> <br />ANNUAL FREQUENCY CURVE -- DISCHARGES AT 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 773.1 797.9 717.3 510.6 1019.0 <br />0.9900 829.6 851.4 778.2 558.6 1083.0 <br />0.9500 1038.0 1050.0 999.3 740.6 1313 . 0 <br />0.9000 1192 .0 1199.0 1163.0 880.1 1485.0 <br />0.8000 1438.0 1439.0 1418.0 1106.0 1760.0 <br />0.5000 2194.0 2181. 0 2194.0 1796.0 2660.0 <br />0.2000 3657.0 3645.0 3743.0 2996.0 4722.0 <br />0.1000 4959.0 4966.0 5208.0 3946.0 6848.0 <br />0.0400 7067.0 7134.0 7778.0 5358.0 10700.0 <br />0.0200 9031.0 9181.0 10430.0 6589.0 14660.0 <br />0.0100 11390.0 11660.0 13920.0 7995.0 19780.0 <br />0.0050 14220.0 14670.0 18620.0 9605.0 26370.0 <br />0.0020 18830.0 19650.0 27510.0 12100.0 38030.0 <br /> <br />PEAKFQ <br /> <br />18 <br /> <br />DRAFT - 1/30/98 <br />
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