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. 04017000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1943 - 1965 - time period 21 - non-zero values 0 - zero values 2 - years with missing values (not used) 2.000 3.800 6.000 4.000 4.300 1.900 4.800 3.800 4.100 5.400 8.000 3.500 2.200 3.400 3.300 2.800 2.900 2.500 1.800 0.900 2.500 The following 7 statistics are based on non-zero values: Mean (logs) 0.502 Variance (logs) 0.044 Standard Deviation (logs) 0.210 Skewness (logs) -0.568 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) 0.406 Coefficient of Variation (logs) 0.418 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.848 0.0200 50.00 1.023 0.0500 20.00 1.337 0.1000 10.00 1.672 0.2000 5.00 2.155 0.5000 2.00 3.322 0.8000 1.25 4.801 0.9000 1.11 5.681 0.9600 1.04 6.679 0.9800 1.02 7.348 0.9900 1.01 7.960 =============================== 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. 04017000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1943 - 1965 - time period 21 - non-zero values 0 - zero values 2 - years with missing values (not used) 2.114 4.843 6.000 4.343 5.214 1.900 4.800 3.971 4.686 5.514 8.100 3.586 2.714 3.914 3.371 2.800 3.157 2.643 1.943 0.900 2.514 The following 7 statistics are based on non-zero values: Mean (logs) 0.531 Variance (logs) 0.046 Standard Deviation (logs) 0.214 Skewness (logs) -0.787 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) 0.390 Coefficient of Variation (logs) 0.403 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.822 0.0200 50.00 1.018 0.0500 20.00 1.375 0.1000 10.00 1.759 0.2000 5.00 2.311 0.5000 2.00 3.617 0.8000 1.25 5.171 0.9000 1.11 6.028 0.9600 1.04 6.937 0.9800 1.02 7.505 0.9900 1.01 7.997 =============================== 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. 04017000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1943 - 1965 - time period 21 - non-zero values 0 - zero values 2 - years with missing values (not used) 2.453 6.330 6.383 5.463 8.950 2.373 5.177 4.287 4.893 5.680 8.673 4.213 3.547 4.113 3.790 2.817 4.327 2.930 2.350 1.063 2.880 The following 7 statistics are based on non-zero values: Mean (logs) 0.598 Variance (logs) 0.046 Standard Deviation (logs) 0.215 Skewness (logs) -0.652 Standard Error of Skewness (logs) 0.501 Serial Correlation Coefficient (logs) 0.318 Coefficient of Variation (logs) 0.360 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.995 0.0200 50.00 1.217 0.0500 20.00 1.619 0.1000 10.00 2.051 0.2000 5.00 2.675 0.5000 2.00 4.185 0.8000 1.25 6.065 0.9000 1.11 7.159 0.9600 1.04 8.372 0.9800 1.02 9.167 0.9900 1.01 9.879