Log-Pearson Type III Statistics Notice -- Use of Log-Pearson Type III or Pearson-Type III distributions are for preliminary computations. User is responsible for assessment and interpretation. 05054000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1902 - 2004 - time period 92 - non-zero values 10 - zero values 1 - years with missing values (not used) 100.000 225.000 101.000 301.000 367.000 220.000 140.000 270.000 30.000 79.000 80.000 142.000 310.000 254.000 363.000 16.000 29.000 55.000 175.000 18.000 9.000 12.000 8.000 38.000 18.000 51.000 38.000 16.000 11.000 2.100 3.800 6.600 99.000 116.000 323.000 80.000 270.000 75.000 40.000 47.000 63.000 143.000 93.000 238.000 70.000 112.000 12.000 251.000 117.000 35.000 45.000 12.000 138.000 52.000 31.000 214.000 236.000 26.000 94.000 28.000 65.000 240.000 41.000 111.000 180.000 0.580 27.000 156.000 13.000 27.000 45.000 140.000 34.000 470.000 500.000 40.000 15.000 44.000 44.000 90.000 150.000 360.000 162.000 160.000 127.000 337.000 289.000 290.000 237.000 293.000 261.000 46.000 The following 7 statistics are based on non-zero values: Mean (logs) 1.842 Variance (logs) 0.316 Standard Deviation (logs) 0.562 Skewness (logs) -0.919 Standard Error of Skewness (logs) 0.251 Serial Correlation Coefficient (logs) 0.407 Coefficient of Variation (logs) 0.305 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 1.491 0.1071 0.000 0.0200 50.00 2.716 0.1161 0.000 0.0500 20.00 6.251 0.1431 0.000 0.1000 10.00 12.295 0.1882 0.336 0.2000 5.00 25.780 0.2784 13.541 0.5000 2.00 84.530 0.5490 70.771 0.8000 1.25 209.806 0.8196 196.055 0.9000 1.11 305.192 0.9098 293.010 0.9600 1.04 424.990 0.9639 412.455 0.9800 1.02 508.525 0.9820 496.985 0.9900 1.01 585.069 0.9910 576.220 Note -- Adjusted parameter values include zero values and correspond with non-exceedance probabilities in column 1 and recurrence interval in column 2. Estimated values in column 3 are based on non-zero values. =============================== Log-Pearson Type III Statistics (based on USGS Program A193) Notice -- Use of Log-Pearson Type III or Pearson-Type III distributions are for preliminary computations. User is responsible for assessment and interpretation. 05054000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1902 - 2004 - time period 93 - non-zero values 9 - zero values 1 - years with missing values (not used) 100.000 233.143 101.000 301.000 367.000 250.000 140.000 288.286 32.000 80.000 80.000 157.143 310.000 254.000 363.000 16.429 41.286 123.286 177.571 18.571 18.857 32.571 29.571 40.286 24.429 73.286 58.000 20.000 11.000 3.400 6.671 12.429 117.143 125.857 362.000 93.714 295.000 89.429 46.571 51.286 75.857 209.143 114.143 250.143 85.000 154.286 16.143 277.286 122.857 61.571 61.857 15.143 178.000 61.143 35.429 321.714 350.000 33.286 111.143 31.857 4.629 74.143 286.857 47.714 135.286 182.857 8.429 36.000 242.429 20.429 28.286 125.143 188.000 49.143 544.286 648.143 44.429 17.571 70.571 55.571 120.714 158.143 387.143 214.286 197.143 149.857 482.857 437.857 342.857 315.000 448.857 304.286 52.714 The following 7 statistics are based on non-zero values: Mean (logs) 1.943 Variance (logs) 0.261 Standard Deviation (logs) 0.510 Skewness (logs) -0.545 Standard Error of Skewness (logs) 0.250 Serial Correlation Coefficient (logs) 0.406 Coefficient of Variation (logs) 0.263 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 3.594 0.0974 0.000 0.0200 50.00 5.646 0.1065 0.000 0.0500 20.00 10.755 0.1338 0.000 0.1000 10.00 18.447 0.1794 4.097 0.2000 5.00 34.039 0.2706 21.183 0.5000 2.00 97.434 0.5441 84.257 0.8000 1.25 239.823 0.8176 225.317 0.9000 1.11 362.778 0.9088 348.535 0.9600 1.04 541.439 0.9635 523.561 0.9800 1.02 686.304 0.9818 667.544 0.9900 1.01 837.679 0.9909 821.676 Note -- Adjusted parameter values include zero values and correspond with non-exceedance probabilities in column 1 and recurrence interval in column 2. Estimated values in column 3 are based on non-zero values. =============================== Log-Pearson Type III Statistics (based on USGS Program A193) Notice -- Use of Log-Pearson Type III or Pearson-Type III distributions are for preliminary computations. User is responsible for assessment and interpretation. 05054000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1902 - 2004 - time period 95 - non-zero values 7 - zero values 1 - years with missing values (not used) 103.333 243.567 104.267 307.200 376.133 251.333 143.333 315.667 32.067 80.300 82.000 203.333 312.000 254.367 366.733 24.133 68.267 149.333 205.567 21.400 30.500 47.467 34.600 47.067 37.400 82.633 61.533 23.000 16.100 6.973 0.077 12.307 24.633 271.367 154.133 377.267 115.667 318.333 95.967 55.167 68.800 96.633 319.467 131.067 333.233 127.533 173.400 34.033 303.267 135.533 118.233 68.233 37.467 188.200 108.000 55.000 398.667 379.700 81.367 149.400 43.733 12.933 128.867 341.133 74.400 161.200 197.167 3.670 17.203 87.367 293.833 25.700 40.700 177.100 220.433 100.667 662.000 689.067 90.067 30.800 80.967 67.733 133.600 175.333 464.000 259.767 271.533 209.200 508.000 563.000 412.667 406.467 537.000 321.167 79.367 The following 7 statistics are based on non-zero values: Mean (logs) 2.014 Variance (logs) 0.326 Standard Deviation (logs) 0.571 Skewness (logs) -2.021 Standard Error of Skewness (logs) 0.247 Serial Correlation Coefficient (logs) 0.484 Coefficient of Variation (logs) 0.284 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.888 0.0779 0.000 0.0200 50.00 2.223 0.0873 0.000 0.0500 20.00 7.467 0.1152 0.000 0.1000 10.00 18.652 0.1618 4.280 0.2000 5.00 46.519 0.2549 27.144 0.5000 2.00 154.980 0.5343 139.160 0.8000 1.25 285.692 0.8137 278.505 0.9000 1.11 332.362 0.9069 328.677 0.9600 1.04 360.730 0.9627 359.329 0.9800 1.02 370.165 0.9814 369.469 0.9900 1.01 374.849 0.9907 374.502 Note -- Adjusted parameter values include zero values and correspond with non-exceedance probabilities in column 1 and recurrence interval in column 2. Estimated values in column 3 are based on non-zero values.