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. 05087500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1946 - 2004 - time period 25 - non-zero values 27 - zero values 7 - years with missing values (not used) 0.200 0.600 1.300 0.500 0.500 0.120 0.110 0.030 0.260 0.040 2.600 0.080 0.080 0.140 1.000 2.500 1.300 0.550 1.200 0.640 2.700 4.600 1.600 0.200 0.050 The following 7 statistics are based on non-zero values: Mean (logs) -0.400 Variance (logs) 0.398 Standard Deviation (logs) 0.631 Skewness (logs) -0.142 Standard Error of Skewness (logs) 0.464 Serial Correlation Coefficient (logs) 0.368 Coefficient of Variation (logs) -1.579 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.012 0.5240 0.000 0.0200 50.00 0.018 0.5288 0.000 0.0500 20.00 0.034 0.5433 0.000 0.1000 10.00 0.061 0.5673 0.000 0.2000 5.00 0.119 0.6154 0.000 0.5000 2.00 0.412 0.7596 0.000 0.8000 1.25 1.366 0.9038 0.561 0.9000 1.11 2.506 0.9519 1.318 0.9600 1.04 4.718 0.9808 2.956 0.9800 1.02 7.047 0.9904 4.613 0.9900 1.01 10.056 0.9952 6.909 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. 05087500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1946 - 2004 - time period 29 - non-zero values 23 - zero values 7 - years with missing values (not used) 0.357 0.943 0.029 0.100 1.000 1.357 0.500 0.500 0.100 0.270 0.141 0.044 0.354 0.071 2.643 0.103 0.103 0.173 1.014 2.500 1.300 0.619 1.686 0.786 2.757 4.700 2.200 0.231 0.094 The following 7 statistics are based on non-zero values: Mean (logs) -0.377 Variance (logs) 0.366 Standard Deviation (logs) 0.605 Skewness (logs) -0.115 Standard Error of Skewness (logs) 0.434 Serial Correlation Coefficient (logs) 0.324 Coefficient of Variation (logs) -1.603 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.015 0.4479 0.000 0.0200 50.00 0.022 0.4535 0.000 0.0500 20.00 0.041 0.4702 0.000 0.1000 10.00 0.069 0.4981 0.000 0.2000 5.00 0.131 0.5538 0.000 0.5000 2.00 0.431 0.7212 0.071 0.8000 1.25 1.364 0.8885 0.714 0.9000 1.11 2.456 0.9442 1.541 0.9600 1.04 4.546 0.9777 3.218 0.9800 1.02 6.725 0.9888 4.899 0.9900 1.01 9.527 0.9944 7.228 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. 05087500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1946 - 2004 - time period 34 - non-zero values 18 - zero values 7 - years with missing values (not used) 0.580 1.220 1.493 0.310 0.143 1.083 1.797 0.533 0.787 0.721 0.227 0.648 0.020 0.296 0.162 0.490 0.290 0.007 2.850 0.143 0.001 0.140 0.222 1.090 2.907 1.403 0.810 2.280 1.883 3.060 5.370 2.303 0.398 0.134 The following 7 statistics are based on non-zero values: Mean (logs) -0.348 Variance (logs) 0.601 Standard Deviation (logs) 0.775 Skewness (logs) -1.614 Standard Error of Skewness (logs) 0.403 Serial Correlation Coefficient (logs) 0.265 Coefficient of Variation (logs) -2.227 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.001 0.3527 0.000 0.0200 50.00 0.003 0.3592 0.000 0.0500 20.00 0.013 0.3788 0.000 0.1000 10.00 0.042 0.4115 0.000 0.2000 5.00 0.135 0.4769 0.000 0.5000 2.00 0.709 0.6731 0.173 0.8000 1.25 1.925 0.8692 1.387 0.9000 1.11 2.630 0.9346 2.229 0.9600 1.04 3.254 0.9738 3.010 0.9800 1.02 3.551 0.9869 3.387 0.9900 1.01 3.747 0.9935 3.642 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.