1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.002.000 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 --- PROCESSING OPTIONS --- Plot option = Graphics device Basin char output = None Print option = Yes Debug print = No Input peaks listing = Long Input peaks format = WATSTORE peak file Input files used: peaks (ascii) - C:\Users\averdin\Projects\Active\TWDB\Task03\PeakFQ_Truncated\07228000\07228000_PEAK-WAT-TRUNC1964.TXT specifications - C:\Users\averdin\Projects\Active\TWDB\Task03\PeakFQ_Truncated\07228000\PKFQWPSF.TMP Output file(s): main - C:\Users\averdin\Projects\Active\TWDB\Task03\PeakFQ_Truncated\07228000\07228000_PEAK-WAT-TRUNC1964.PRT *** User responsible for assessment and interpretation of the following analysis *** 1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.001.001 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 Station - 07228000 Canadian Rv nr Canadian, TX TABLE 1 - INPUT DATA SUMMARY Number of peaks in record = 58 Peaks not used in analysis = 0 Gaged peaks in analysis = 58 Historic peaks in analysis = 0 Beginning Year = 1964 Ending Year = 2021 Historical Period Length = 58 Skew option = WEIGHTED Regional skew = -0.335 Standard error = 0.465 Mean Square error = 0.216 Gage base discharge = 0.0 User supplied high outlier threshold = -- User supplied PILF (LO) criterion = -- Plotting position parameter = 0.00 Type of analysis EMA PILF (LO) Test Method MGBT Perceptible Ranges: Start Year End Year Lower Bound Upper Bound 1964 2021 0.0 INF DEFAULT Interval Data = None Specified TABLE 2 - DIAGNOSTIC MESSAGE AND PILF RESULTS WCF002J-CALCS COMPLETED. RETURN CODE = 2 EMA002W-CONFIDENCE INTERVALS ARE NOT EXACT IF HISTORIC PERIOD > 0 MULTIPLE GRUBBS-BECK TEST RESULTS MULTIPLE GRUBBS-BECK PILF THRESHOLD N/A NUMBER OF PILFS IDENTIFIED 0 Kendall's Tau Parameters MEDIAN No. of TAU P-VALUE SLOPE PEAKS --------------------------------------- GAGED PEAKS -0.582 0.000 -160.660 58 1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.001.002 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 Station - 07228000 Canadian Rv nr Canadian, TX TABLE 3 - ANNUAL FREQUENCY CURVE PARAMETERS -- LOG-PEARSON TYPE III LOGARITHMIC ------------------------------- STANDARD MEAN DEVIATION SKEW ------------------------------- EMA WITHOUT REG SKEW 3.3099 0.6657 -0.045 EMA WITH REG SKEW 3.3099 0.6657 -0.132 EMA ESTIMATE OF MSE OF SKEW WITHOUT REG SKEW 0.0923 EMA ESTIMATE OF MSE OF SKEW W/GAGED PEAKS ONLY (AT-SITE) 0.0923 TABLE 4 - ANNUAL FREQUENCY CURVE -- DISCHARGES AT SELECTED EXCEEDANCE PROBABILITIES ANNUAL <- EMA ESTIMATE -> <- FOR EMA ESTIMATE WITH REG SKEW -> EXCEEDANCE WITH WITHOUT LOG VARIANCE <-CONFIDENCE LIMITS-> PROBABILITY REG SKEW REG SKEW OF EST. 5.0% LOWER 95.0% UPPER 0.9950 32.6 36.9 0.0665 8.2 70.5 0.9900 49.8 54.8 0.0499 15.5 98.2 0.9500 155.1 160.9 0.0227 75.2 253.2 0.9000 280.5 284.2 0.0156 159.4 429.7 0.8000 568.0 563.9 0.0111 364.6 829.2 0.6667 1085. 1065. 0.0092 738.7 1549.0 0.5000 2111. 2065. 0.0085 1479.0 3000.0 0.4292 2772. 2714. 0.0084 1951.0 3949.0 0.2000 7482. 7441. 0.0096 5225.0 11180.0 0.1000 14230. 14450. 0.0125 9634.0 23290.0 0.0400 27840. 29170. 0.0194 17650.0 53840.0 0.0200 42620. 45800. 0.0270 25290.0 95060.0 0.0100 62190. 68610. 0.0368 34190.0 161100.0 0.0050 87530. 99170. 0.0489 44260.0 264700.0 0.0020 131700. 154700. 0.0683 59220.0 491500.0 *Note: If Station Skew option is selected then EMA ESTIMATE WITH REG SKEW will display values for and be equal to EMA ESTIMATE WITHOUT REG SKEW. 1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.001.003 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 Station - 07228000 Canadian Rv nr Canadian, TX TABLE 5 - INPUT DATA LISTING WATER PEAK PEAKFQ FLOW INTERVALS (WHERE LOWER BOUND NOT = UPPER BOUND) YEAR VALUE CODES LOWER BOUND UPPER BOUND REMARKS 1964 2890.0 K 1965 13200.0 K 1966 10600.0 K 1967 24200.0 K 1968 12100.0 K 1969 38900.0 K 1970 8820.0 K 1971 7800.0 K 1972 13600.0 K 1973 27800.0 K 1974 4960.0 K 1975 3180.0 K 1976 903.0 K 1977 17100.0 K 1978 10500.0 K 1979 9610.0 K 1980 7000.0 K 1981 5070.0 K 1982 6090.0 K 1983 14600.0 K 1984 1300.0 K 1985 2970.0 K 1986 3820.0 K 1987 1840.0 K 1988 1760.0 K 1989 4580.0 K 1990 402.0 K 1991 1160.0 K 1992 1160.0 K 1993 702.0 K 1994 1410.0 K 1995 4060.0 K 1996 430.0 K 1997 4490.0 K 1998 682.0 K 1999 2460.0 K 2000 1280.0 K 2001 1730.0 K 2002 1140.0 K 2003 585.0 K 2004 1080.0 K 2005 2120.0 K 2006 94.0 K 2007 4610.0 K 2008 699.0 K 2009 272.0 K 2010 1000.0 K 2011 269.0 K 2012 209.0 K 2013 627.0 K 2014 2060.0 K 2015 26500.0 K 2016 265.0 K 2017 170.0 K 2018 249.0 K 2019 281.0 K 2020 114.0 K 2021 343.0 K Explanation of peak discharge qualification codes PeakFQ NWIS CODE CODE DEFINITION D 3 Dam failure, non-recurrent flow anomaly G 8 Discharge greater than stated value X 3+8 Both of the above L 4 Discharge less than stated value K 6 OR C Known effect of regulation or urbanization O O Opportunistic peak H 7 Historic peak - Minus-flagged discharge -- Not used in computation -8888.0 -- No discharge value given - Minus-flagged water year -- Historic peak used in computation 1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.001.004 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 Station - 07228000 Canadian Rv nr Canadian, TX TABLE 6 - EMPIRICAL FREQUENCY CURVES -- HIRSCH-STEDINGER PLOTTING POSITIONS WATER RANKED EMA FLOW INTERVALS (WHERE LOWER BOUND NOT = UPPER BOUND) YEAR DISCHARGE ESTIMATE LOWER BOUND UPPER BOUND 1969 38900.0 0.0169 1973 27800.0 0.0339 2015 26500.0 0.0508 1967 24200.0 0.0678 1977 17100.0 0.0847 1983 14600.0 0.1017 1972 13600.0 0.1186 1965 13200.0 0.1356 1968 12100.0 0.1525 1966 10600.0 0.1695 1978 10500.0 0.1864 1979 9610.0 0.2034 1970 8820.0 0.2203 1971 7800.0 0.2373 1980 7000.0 0.2542 1982 6090.0 0.2712 1981 5070.0 0.2881 1974 4960.0 0.3051 2007 4610.0 0.3220 1989 4580.0 0.3390 1997 4490.0 0.3559 1995 4060.0 0.3729 1986 3820.0 0.3898 1975 3180.0 0.4068 1985 2970.0 0.4237 1964 2890.0 0.4407 1999 2460.0 0.4576 2005 2120.0 0.4746 2014 2060.0 0.4915 1987 1840.0 0.5085 1988 1760.0 0.5254 2001 1730.0 0.5424 1994 1410.0 0.5593 1984 1300.0 0.5763 2000 1280.0 0.5932 1991 1160.0 0.6271 1992 1160.0 0.6102 2002 1140.0 0.6441 2004 1080.0 0.6610 2010 1000.0 0.6780 1976 903.0 0.6949 1993 702.0 0.7119 2008 699.0 0.7288 1998 682.0 0.7458 2013 627.0 0.7627 2003 585.0 0.7797 1996 430.0 0.7966 1990 402.0 0.8136 2021 343.0 0.8305 2019 281.0 0.8475 2009 272.0 0.8644 2011 269.0 0.8814 2016 265.0 0.8983 2018 249.0 0.9153 2012 209.0 0.9322 2017 170.0 0.9492 2020 114.0 0.9661 2006 94.0 0.9831 1 Program PeakFq U. S. GEOLOGICAL SURVEY Seq.001.005 Version 7.3 Annual peak flow frequency analysis Run Date / Time 10/25/2019 09/22/2023 12:26 Station - 07228000 Canadian Rv nr Canadian, TX TABLE 7 - EMA REPRESENTATION OF DATA <---- USER-ENTERED ----><-------- FINAL -------> WATER <----- OBSERVED ----><-------- EMA -------><- PERCEPTIBLE RANGES -><- PERCEPTIBLE RANGES -> YEAR Q_LOWER Q_UPPER Q_LOWER Q_UPPER LOWER UPPER LOWER UPPER 1964 2890.0 2890.0 2890.0 2890.0 0.0 INF 0.0 INF 1965 13200.0 13200.0 13200.0 13200.0 0.0 INF 0.0 INF 1966 10600.0 10600.0 10600.0 10600.0 0.0 INF 0.0 INF 1967 24200.0 24200.0 24200.0 24200.0 0.0 INF 0.0 INF 1968 12100.0 12100.0 12100.0 12100.0 0.0 INF 0.0 INF 1969 38900.0 38900.0 38900.0 38900.0 0.0 INF 0.0 INF 1970 8820.0 8820.0 8820.0 8820.0 0.0 INF 0.0 INF 1971 7800.0 7800.0 7800.0 7800.0 0.0 INF 0.0 INF 1972 13600.0 13600.0 13600.0 13600.0 0.0 INF 0.0 INF 1973 27800.0 27800.0 27800.0 27800.0 0.0 INF 0.0 INF 1974 4960.0 4960.0 4960.0 4960.0 0.0 INF 0.0 INF 1975 3180.0 3180.0 3180.0 3180.0 0.0 INF 0.0 INF 1976 903.0 903.0 903.0 903.0 0.0 INF 0.0 INF 1977 17100.0 17100.0 17100.0 17100.0 0.0 INF 0.0 INF 1978 10500.0 10500.0 10500.0 10500.0 0.0 INF 0.0 INF 1979 9610.0 9610.0 9610.0 9610.0 0.0 INF 0.0 INF 1980 7000.0 7000.0 7000.0 7000.0 0.0 INF 0.0 INF 1981 5070.0 5070.0 5070.0 5070.0 0.0 INF 0.0 INF 1982 6090.0 6090.0 6090.0 6090.0 0.0 INF 0.0 INF 1983 14600.0 14600.0 14600.0 14600.0 0.0 INF 0.0 INF 1984 1300.0 1300.0 1300.0 1300.0 0.0 INF 0.0 INF 1985 2970.0 2970.0 2970.0 2970.0 0.0 INF 0.0 INF 1986 3820.0 3820.0 3820.0 3820.0 0.0 INF 0.0 INF 1987 1840.0 1840.0 1840.0 1840.0 0.0 INF 0.0 INF 1988 1760.0 1760.0 1760.0 1760.0 0.0 INF 0.0 INF 1989 4580.0 4580.0 4580.0 4580.0 0.0 INF 0.0 INF 1990 402.0 402.0 402.0 402.0 0.0 INF 0.0 INF 1991 1160.0 1160.0 1160.0 1160.0 0.0 INF 0.0 INF 1992 1160.0 1160.0 1160.0 1160.0 0.0 INF 0.0 INF 1993 702.0 702.0 702.0 702.0 0.0 INF 0.0 INF 1994 1410.0 1410.0 1410.0 1410.0 0.0 INF 0.0 INF 1995 4060.0 4060.0 4060.0 4060.0 0.0 INF 0.0 INF 1996 430.0 430.0 430.0 430.0 0.0 INF 0.0 INF 1997 4490.0 4490.0 4490.0 4490.0 0.0 INF 0.0 INF 1998 682.0 682.0 682.0 682.0 0.0 INF 0.0 INF 1999 2460.0 2460.0 2460.0 2460.0 0.0 INF 0.0 INF 2000 1280.0 1280.0 1280.0 1280.0 0.0 INF 0.0 INF 2001 1730.0 1730.0 1730.0 1730.0 0.0 INF 0.0 INF 2002 1140.0 1140.0 1140.0 1140.0 0.0 INF 0.0 INF 2003 585.0 585.0 585.0 585.0 0.0 INF 0.0 INF 2004 1080.0 1080.0 1080.0 1080.0 0.0 INF 0.0 INF 2005 2120.0 2120.0 2120.0 2120.0 0.0 INF 0.0 INF 2006 94.0 94.0 94.0 94.0 0.0 INF 0.0 INF 2007 4610.0 4610.0 4610.0 4610.0 0.0 INF 0.0 INF 2008 699.0 699.0 699.0 699.0 0.0 INF 0.0 INF 2009 272.0 272.0 272.0 272.0 0.0 INF 0.0 INF 2010 1000.0 1000.0 1000.0 1000.0 0.0 INF 0.0 INF 2011 269.0 269.0 269.0 269.0 0.0 INF 0.0 INF 2012 209.0 209.0 209.0 209.0 0.0 INF 0.0 INF 2013 627.0 627.0 627.0 627.0 0.0 INF 0.0 INF 2014 2060.0 2060.0 2060.0 2060.0 0.0 INF 0.0 INF 2015 26500.0 26500.0 26500.0 26500.0 0.0 INF 0.0 INF 2016 265.0 265.0 265.0 265.0 0.0 INF 0.0 INF 2017 170.0 170.0 170.0 170.0 0.0 INF 0.0 INF 2018 249.0 249.0 249.0 249.0 0.0 INF 0.0 INF 2019 281.0 281.0 281.0 281.0 0.0 INF 0.0 INF 2020 114.0 114.0 114.0 114.0 0.0 INF 0.0 INF 2021 343.0 343.0 343.0 343.0 0.0 INF 0.0 INF 1 End PeakFQ analysis. Stations processed : 1 Number of errors : 0 Stations skipped : 0 Station years : 58 Data records may have been ignored for the stations listed below. (Card type must be Y, Z, N, H, I, 2, 3, 4, or *.) (2, 4, and * records are ignored.) For the station below, the following records were ignored: FINISHED PROCESSING STATION: 07228000 USGS Canadian Rv nr Canadian, TX For the station below, the following records were ignored: FINISHED PROCESSING STATION: