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. 05067500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1945 - 2004 - time period 10 - non-zero values 33 - zero values 17 - years with missing values (not used) 0.100 16.000 3.600 20.000 35.000 9.000 0.100 0.360 0.120 0.010 The following 7 statistics are based on non-zero values: Mean (logs) 0.020 Variance (logs) 1.532 Standard Deviation (logs) 1.238 Skewness (logs) -0.220 Standard Error of Skewness (logs) 0.687 Serial Correlation Coefficient (logs) 0.473 Coefficient of Variation (logs) 63.393 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.001 0.7698 0.000 0.0200 50.00 0.002 0.7721 0.000 0.0500 20.00 0.008 0.7791 0.000 0.1000 10.00 0.026 0.7907 0.000 0.2000 5.00 0.098 0.8140 0.000 0.5000 2.00 1.161 0.8837 0.000 0.8000 1.25 11.808 0.9535 0.044 0.9000 1.11 37.465 0.9767 1.913 0.9600 1.04 122.956 0.9907 16.314 0.9800 1.02 258.874 0.9953 48.529 0.9900 1.01 498.008 0.9977 113.584 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. 05067500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1945 - 2004 - time period 11 - non-zero values 32 - zero values 17 - years with missing values (not used) 0.157 17.143 5.443 21.714 38.429 9.714 0.100 0.043 0.400 0.181 0.060 The following 7 statistics are based on non-zero values: Mean (logs) 0.031 Variance (logs) 1.304 Standard Deviation (logs) 1.142 Skewness (logs) 0.164 Standard Error of Skewness (logs) 0.661 Serial Correlation Coefficient (logs) 0.554 Coefficient of Variation (logs) 36.315 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.003 0.7467 0.000 0.0200 50.00 0.006 0.7493 0.000 0.0500 20.00 0.016 0.7570 0.000 0.1000 10.00 0.039 0.7698 0.000 0.2000 5.00 0.115 0.7953 0.000 0.5000 2.00 1.001 0.8721 0.000 0.8000 1.25 9.602 0.9488 0.134 0.9000 1.11 32.632 0.9744 2.088 0.9600 1.04 124.148 0.9898 16.375 0.9800 1.02 299.501 0.9949 51.192 0.9900 1.01 669.168 0.9974 128.797 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. 05067500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1945 - 2004 - time period 14 - non-zero values 29 - zero values 17 - years with missing values (not used) 0.293 21.333 7.863 23.367 50.800 10.433 0.123 0.007 0.117 0.027 0.034 0.400 0.270 0.127 The following 7 statistics are based on non-zero values: Mean (logs) -0.224 Variance (logs) 1.562 Standard Deviation (logs) 1.250 Skewness (logs) 0.249 Standard Error of Skewness (logs) 0.597 Serial Correlation Coefficient (logs) 0.675 Coefficient of Variation (logs) -5.585 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.001 0.6777 0.000 0.0200 50.00 0.002 0.6809 0.000 0.0500 20.00 0.006 0.6907 0.000 0.1000 10.00 0.016 0.7070 0.000 0.2000 5.00 0.052 0.7395 0.000 0.5000 2.00 0.530 0.8372 0.000 0.8000 1.25 6.457 0.9349 0.232 0.9000 1.11 25.552 0.9674 2.329 0.9600 1.04 116.811 0.9870 18.659 0.9800 1.02 321.106 0.9935 63.116 0.9900 1.01 813.408 0.9967 179.701 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.