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. 04014500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1929 - 1993 - time period 59 - non-zero values 1 - zero values 5 - years with missing values (not used) 6.000 4.000 6.000 3.000 2.000 10.000 2.000 4.100 9.400 0.400 10.000 2.200 6.700 9.300 12.000 9.600 7.100 12.000 16.000 13.000 13.000 9.600 12.000 22.000 11.000 17.000 6.700 8.300 2.800 1.700 8.300 11.000 13.000 11.000 6.200 13.000 11.000 5.400 19.000 12.000 19.000 18.000 5.700 5.400 23.000 12.000 10.000 9.700 27.000 18.000 9.700 18.000 27.000 5.000 10.000 1.900 9.600 12.000 19.000 The following 7 statistics are based on non-zero values: Mean (logs) 0.921 Variance (logs) 0.117 Standard Deviation (logs) 0.342 Skewness (logs) -1.374 Standard Error of Skewness (logs) 0.311 Serial Correlation Coefficient (logs) 0.205 Coefficient of Variation (logs) 0.371 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.644 0.0265 0.000 0.0200 50.00 1.001 0.0363 0.281 0.0500 20.00 1.821 0.0658 1.386 0.1000 10.00 2.914 0.1150 2.525 0.2000 5.00 4.778 0.2133 4.468 0.5000 2.00 9.934 0.5083 9.774 0.8000 1.25 16.085 0.8033 16.001 0.9000 1.11 19.029 0.9017 18.974 0.9600 1.04 21.616 0.9607 21.580 0.9800 1.02 22.926 0.9803 22.901 0.9900 1.01 23.863 0.9902 23.847 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. 04014500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1929 - 1993 - time period 59 - non-zero values 1 - zero values 5 - years with missing values (not used) 6.714 5.714 7.143 4.000 2.000 10.143 2.600 4.829 10.714 0.871 11.714 2.743 8.314 10.043 13.714 13.000 10.586 13.000 18.429 13.429 14.429 10.029 14.143 29.143 11.286 17.857 7.400 8.629 2.957 1.729 9.986 13.857 13.286 11.571 6.243 19.143 12.286 5.900 21.857 13.286 20.286 21.857 7.471 5.986 23.571 12.000 11.143 10.243 30.000 24.143 9.771 25.000 27.000 5.000 14.000 2.629 11.071 13.429 19.000 The following 7 statistics are based on non-zero values: Mean (logs) 0.986 Variance (logs) 0.104 Standard Deviation (logs) 0.322 Skewness (logs) -1.036 Standard Error of Skewness (logs) 0.311 Serial Correlation Coefficient (logs) 0.202 Coefficient of Variation (logs) 0.327 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 1.010 0.0265 0.000 0.0200 50.00 1.451 0.0363 0.517 0.0500 20.00 2.393 0.0658 1.903 0.1000 10.00 3.579 0.1150 3.165 0.2000 5.00 5.533 0.2133 5.216 0.5000 2.00 10.972 0.5083 10.800 0.8000 1.25 18.179 0.8033 18.074 0.9000 1.11 22.209 0.9017 22.134 0.9600 1.04 26.350 0.9607 26.288 0.9800 1.02 28.817 0.9803 28.766 0.9900 1.01 30.841 0.9902 30.806 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. 04014500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1929 - 1993 - time period 59 - non-zero values 1 - zero values 5 - years with missing values (not used) 10.633 6.800 14.267 5.700 2.433 11.133 3.463 9.153 12.500 1.943 20.400 13.893 11.867 12.143 21.000 13.933 21.600 19.433 26.133 15.000 14.967 11.540 33.800 31.433 13.833 18.967 10.127 11.580 4.823 2.507 15.800 17.933 17.867 12.500 7.513 41.133 15.400 8.300 34.433 15.900 25.700 29.600 13.920 10.003 25.267 13.533 12.567 15.923 32.133 28.933 9.793 26.333 27.467 5.367 21.433 6.597 13.433 15.867 20.633 The following 7 statistics are based on non-zero values: Mean (logs) 1.128 Variance (logs) 0.083 Standard Deviation (logs) 0.288 Skewness (logs) -0.957 Standard Error of Skewness (logs) 0.311 Serial Correlation Coefficient (logs) 0.155 Coefficient of Variation (logs) 0.256 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 1.839 0.0265 0.000 0.0200 50.00 2.515 0.0363 1.035 0.0500 20.00 3.883 0.0658 3.183 0.1000 10.00 5.518 0.1150 4.957 0.2000 5.00 8.095 0.2133 7.685 0.5000 2.00 14.906 0.5083 14.696 0.8000 1.25 23.655 0.8033 23.529 0.9000 1.11 28.549 0.9017 28.459 0.9600 1.04 33.651 0.9607 33.573 0.9800 1.02 36.752 0.9803 36.687 0.9900 1.01 39.348 0.9902 39.302 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.