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. 05476000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 2004 - time period 59 - non-zero values 10 - zero values 26 - years with missing values (not used) 0.300 11.000 0.700 1.200 18.000 80.000 4.600 5.000 12.000 2.000 0.800 0.300 6.000 1.400 4.500 10.000 0.100 9.200 14.000 9.100 2.000 14.000 12.000 20.000 1.800 0.300 1.600 18.000 16.000 7.000 20.000 3.400 1.900 0.320 0.900 121.000 6.500 0.350 43.000 41.000 22.000 61.000 118.000 2.800 0.530 0.170 29.000 115.000 88.000 33.000 54.000 44.000 21.000 14.000 4.600 2.100 14.000 5.000 2.700 The following 7 statistics are based on non-zero values: Mean (logs) 0.769 Variance (logs) 0.611 Standard Deviation (logs) 0.782 Skewness (logs) -0.315 Standard Error of Skewness (logs) 0.311 Serial Correlation Coefficient (logs) 0.305 Coefficient of Variation (logs) 1.016 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.059 0.1535 0.000 0.0200 50.00 0.109 0.1620 0.000 0.0500 20.00 0.262 0.1877 0.000 0.1000 10.00 0.556 0.2304 0.000 0.2000 5.00 1.338 0.3159 0.325 0.5000 2.00 6.460 0.5725 4.375 0.8000 1.25 27.294 0.8290 22.823 0.9000 1.11 55.057 0.9145 48.884 0.9600 1.04 112.014 0.9658 100.714 0.9800 1.02 173.642 0.9829 158.567 0.9900 1.01 254.124 0.9914 238.238 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. 05476000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 2004 - time period 61 - non-zero values 8 - zero values 26 - years with missing values (not used) 0.300 11.000 1.343 1.629 18.857 82.857 5.014 6.143 14.429 0.571 2.957 1.814 0.300 18.714 2.243 4.714 11.571 0.100 9.471 14.000 9.914 2.057 15.571 16.000 20.571 3.086 0.300 4.657 18.000 16.571 8.757 22.000 5.414 1.900 3.444 0.073 6.129 121.000 6.500 1.201 46.857 42.571 24.286 62.571 120.714 3.629 0.881 0.420 37.571 121.429 92.714 35.429 87.571 54.143 26.143 15.000 4.629 2.886 16.143 9.257 4.300 The following 7 statistics are based on non-zero values: Mean (logs) 0.849 Variance (logs) 0.579 Standard Deviation (logs) 0.761 Skewness (logs) -0.543 Standard Error of Skewness (logs) 0.306 Serial Correlation Coefficient (logs) 0.269 Coefficient of Variation (logs) 0.896 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.061 0.1248 0.000 0.0200 50.00 0.119 0.1336 0.000 0.0500 20.00 0.310 0.1601 0.000 0.1000 10.00 0.693 0.2043 0.000 0.2000 5.00 1.727 0.2928 0.641 0.5000 2.00 8.276 0.5580 6.171 0.8000 1.25 31.698 0.8232 27.943 0.9000 1.11 58.772 0.9116 54.201 0.9600 1.04 106.833 0.9646 99.818 0.9800 1.02 152.206 0.9823 143.905 0.9900 1.01 204.977 0.9912 197.129 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. 05476000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 2004 - time period 64 - non-zero values 5 - zero values 26 - years with missing values (not used) 0.093 0.300 11.600 3.077 7.913 22.400 117.000 8.910 6.800 33.733 6.267 4.690 1.970 1.690 30.933 4.963 5.883 12.800 0.160 16.643 0.043 16.933 15.803 4.343 18.533 22.400 32.600 11.883 0.830 8.173 18.200 34.233 9.583 28.500 14.990 2.270 6.287 3.099 6.637 121.067 6.500 7.297 64.867 54.567 37.667 71.100 135.167 5.330 1.234 0.983 1.514 58.867 135.667 101.000 55.200 116.400 79.400 31.100 47.533 5.107 5.840 20.300 14.133 8.170 The following 7 statistics are based on non-zero values: Mean (logs) 1.003 Variance (logs) 0.566 Standard Deviation (logs) 0.753 Skewness (logs) -0.929 Standard Error of Skewness (logs) 0.299 Serial Correlation Coefficient (logs) 0.315 Coefficient of Variation (logs) 0.750 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.058 0.0817 0.000 0.0200 50.00 0.130 0.0910 0.000 0.0500 20.00 0.399 0.1188 0.000 0.1000 10.00 0.989 0.1652 0.203 0.2000 5.00 2.672 0.2580 1.436 0.5000 2.00 13.125 0.5362 11.062 0.8000 1.25 44.218 0.8145 41.435 0.9000 1.11 72.844 0.9072 70.058 0.9600 1.04 113.093 0.9629 109.909 0.9800 1.02 143.447 0.9814 140.348 0.9900 1.01 172.661 0.9907 170.179 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.