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. 05315000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2004 - time period 53 - non-zero values 11 - zero values 0 - years with missing values (not used) 0.200 6.000 1.500 0.200 1.600 1.300 0.100 5.000 0.800 2.700 2.500 0.200 3.500 0.400 1.100 0.600 1.200 1.900 0.700 1.900 0.360 0.100 1.400 3.300 2.000 0.040 4.500 0.180 8.200 3.000 0.420 2.600 4.900 6.400 9.000 17.000 3.700 1.300 2.300 2.800 5.600 14.000 46.000 20.000 15.000 9.100 11.000 7.000 4.900 4.600 7.900 3.500 3.300 The following 7 statistics are based on non-zero values: Mean (logs) 0.319 Variance (logs) 0.426 Standard Deviation (logs) 0.653 Skewness (logs) -0.588 Standard Error of Skewness (logs) 0.327 Serial Correlation Coefficient (logs) 0.280 Coefficient of Variation (logs) 2.049 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.034 0.1802 0.000 0.0200 50.00 0.061 0.1884 0.000 0.0500 20.00 0.141 0.2133 0.000 0.1000 10.00 0.283 0.2547 0.000 0.2000 5.00 0.625 0.3375 0.096 0.5000 2.00 2.410 0.5859 1.616 0.8000 1.25 7.547 0.8344 6.375 0.9000 1.11 12.675 0.9172 11.382 0.9600 1.04 20.836 0.9669 19.061 0.9800 1.02 27.894 0.9834 25.931 0.9900 1.01 35.585 0.9917 33.831 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. 05315000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2004 - time period 55 - non-zero values 9 - zero values 0 - years with missing values (not used) 0.271 6.429 1.571 0.200 1.686 1.400 0.471 0.029 5.271 1.343 2.857 2.814 0.386 3.814 0.400 1.171 0.600 1.200 6.471 0.800 1.943 0.566 0.100 1.914 3.300 2.314 0.053 5.586 0.886 0.326 9.629 3.000 0.583 4.400 5.000 6.557 10.671 17.143 3.700 1.943 2.357 3.171 7.057 14.143 46.714 20.857 16.857 9.929 11.857 7.814 4.900 5.186 8.029 3.714 3.429 The following 7 statistics are based on non-zero values: Mean (logs) 0.355 Variance (logs) 0.429 Standard Deviation (logs) 0.655 Skewness (logs) -0.754 Standard Error of Skewness (logs) 0.322 Serial Correlation Coefficient (logs) 0.313 Coefficient of Variation (logs) 1.846 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.030 0.1492 0.000 0.0200 50.00 0.058 0.1578 0.000 0.0500 20.00 0.143 0.1836 0.000 0.1000 10.00 0.302 0.2266 0.000 0.2000 5.00 0.693 0.3125 0.191 0.5000 2.00 2.731 0.5703 1.995 0.8000 1.25 8.239 0.8281 7.260 0.9000 1.11 13.298 0.9141 12.296 0.9600 1.04 20.682 0.9656 19.452 0.9800 1.02 26.554 0.9828 25.290 0.9900 1.01 32.510 0.9914 31.451 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. 05315000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2004 - time period 62 - non-zero values 2 - zero values 0 - years with missing values (not used) 0.177 0.003 0.463 7.467 1.780 0.750 3.757 2.367 1.117 0.347 1.430 6.790 2.877 4.153 3.610 0.783 0.783 5.883 0.547 0.413 1.817 0.810 1.370 6.657 1.300 2.113 2.630 0.277 3.843 3.570 2.810 0.753 7.033 1.359 0.531 0.062 2.216 10.200 3.527 0.988 8.413 5.643 7.483 20.990 20.167 4.183 2.760 2.657 3.980 10.353 15.167 50.500 23.367 21.300 10.817 12.900 10.673 5.140 5.860 9.653 4.610 3.973 The following 7 statistics are based on non-zero values: Mean (logs) 0.412 Variance (logs) 0.462 Standard Deviation (logs) 0.679 Skewness (logs) -1.409 Standard Error of Skewness (logs) 0.304 Serial Correlation Coefficient (logs) 0.520 Coefficient of Variation (logs) 1.649 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.015 0.0409 0.000 0.0200 50.00 0.037 0.0506 0.000 0.0500 20.00 0.124 0.0797 0.035 0.1000 10.00 0.319 0.1281 0.185 0.2000 5.00 0.859 0.2250 0.665 0.5000 2.00 3.682 0.5156 3.463 0.8000 1.25 9.486 0.8063 9.302 0.9000 1.11 13.128 0.9031 12.991 0.9600 1.04 16.739 0.9613 16.638 0.9800 1.02 18.692 0.9806 18.618 0.9900 1.01 20.128 0.9903 20.080 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.