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. 04019000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1955 - 1979 - time period 21 - non-zero values 0 - zero values 4 - years with missing values (not used) 3.800 10.000 3.000 6.500 7.200 6.900 4.400 5.200 6.000 5.200 13.000 12.000 7.900 8.400 5.900 4.100 7.100 5.400 4.400 3.900 11.000 The following 7 statistics are based on non-zero values: Mean (logs) 0.794 Variance (logs) 0.030 Standard Deviation (logs) 0.174 Skewness (logs) 0.202 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) -0.027 Coefficient of Variation (logs) 0.219 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 2.600 0.0200 50.00 2.855 0.0500 20.00 3.296 0.1000 10.00 3.759 0.2000 5.00 4.427 0.5000 2.00 6.142 0.8000 1.25 8.686 0.9000 1.11 10.493 0.9600 1.04 12.912 0.9800 1.02 14.812 0.9900 1.01 16.797 =============================== 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. 04019000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1955 - 1979 - time period 21 - non-zero values 0 - zero values 4 - years with missing values (not used) 3.814 10.000 3.000 6.529 7.271 6.957 4.414 5.371 6.114 5.500 14.286 12.286 8.043 8.500 6.243 4.100 7.443 5.657 4.443 4.586 11.000 The following 7 statistics are based on non-zero values: Mean (logs) 0.807 Variance (logs) 0.031 Standard Deviation (logs) 0.175 Skewness (logs) 0.222 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) 0.004 Coefficient of Variation (logs) 0.217 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 2.686 0.0200 50.00 2.945 0.0500 20.00 3.395 0.1000 10.00 3.868 0.2000 5.00 4.551 0.5000 2.00 6.313 0.8000 1.25 8.944 0.9000 1.11 10.822 0.9600 1.04 13.350 0.9800 1.02 15.344 0.9900 1.01 17.435 =============================== 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. 04019000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1955 - 1979 - time period 21 - non-zero values 0 - zero values 4 - years with missing values (not used) 4.160 10.233 3.060 6.737 7.540 6.990 5.217 6.157 6.577 5.647 18.567 14.000 8.437 10.000 7.200 4.640 8.590 6.403 4.493 5.370 11.400 The following 7 statistics are based on non-zero values: Mean (logs) 0.847 Variance (logs) 0.034 Standard Deviation (logs) 0.184 Skewness (logs) 0.384 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) 0.053 Coefficient of Variation (logs) 0.217 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 2.965 0.0200 50.00 3.225 0.0500 20.00 3.683 0.1000 10.00 4.173 0.2000 5.00 4.897 0.5000 2.00 6.843 0.8000 1.25 9.935 0.9000 1.11 12.263 0.9600 1.04 15.540 0.9800 1.02 18.232 0.9900 1.01 21.147