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. 05291000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 65 - non-zero values 8 - zero values 21 - years with missing values (not used) 0.200 0.500 0.300 0.100 0.300 0.600 3.200 3.800 1.500 2.600 4.000 2.400 2.400 1.000 1.000 2.000 2.500 4.500 1.200 0.800 6.000 1.300 0.400 0.100 2.600 4.000 0.300 2.600 2.000 0.200 0.800 2.200 1.800 1.400 7.100 4.100 0.790 1.200 1.200 2.000 4.400 0.820 0.900 0.830 0.950 3.300 2.700 15.000 0.700 0.130 0.470 0.290 7.300 5.300 29.000 17.000 13.000 14.000 13.000 7.500 5.200 2.100 9.300 3.800 1.600 The following 7 statistics are based on non-zero values: Mean (logs) 0.239 Variance (logs) 0.317 Standard Deviation (logs) 0.563 Skewness (logs) -0.184 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.528 Coefficient of Variation (logs) 2.355 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.072 0.1185 0.000 0.0200 50.00 0.107 0.1274 0.000 0.0500 20.00 0.193 0.1541 0.000 0.1000 10.00 0.322 0.1986 0.000 0.2000 5.00 0.590 0.2877 0.325 0.5000 2.00 1.803 0.5548 1.472 0.8000 1.25 5.208 0.8219 4.728 0.9000 1.11 8.868 0.9110 8.306 0.9600 1.04 15.388 0.9644 14.485 0.9800 1.02 21.775 0.9822 20.661 0.9900 1.01 29.579 0.9911 28.485 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. 05291000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 66 - non-zero values 7 - zero values 21 - years with missing values (not used) 0.086 0.214 0.500 0.457 0.157 0.414 0.800 3.429 4.357 2.671 2.600 4.000 2.457 2.714 1.114 1.200 2.300 2.571 4.557 1.600 0.800 6.200 1.300 0.529 0.100 2.614 4.043 0.843 2.957 2.271 0.200 1.057 3.229 2.043 1.600 7.329 4.314 0.790 1.386 1.500 2.343 5.700 1.371 0.900 1.040 1.093 3.871 3.200 15.000 1.016 0.181 0.964 0.419 10.443 5.629 32.000 18.143 14.429 15.000 13.714 7.957 5.786 2.214 9.643 3.900 1.814 The following 7 statistics are based on non-zero values: Mean (logs) 0.291 Variance (logs) 0.309 Standard Deviation (logs) 0.555 Skewness (logs) -0.310 Standard Error of Skewness (logs) 0.295 Serial Correlation Coefficient (logs) 0.552 Coefficient of Variation (logs) 1.912 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.075 0.1049 0.000 0.0200 50.00 0.115 0.1140 0.000 0.0500 20.00 0.214 0.1411 0.000 0.1000 10.00 0.365 0.1863 0.045 0.2000 5.00 0.681 0.2767 0.402 0.5000 2.00 2.086 0.5479 1.754 0.8000 1.25 5.813 0.8192 5.368 0.9000 1.11 9.581 0.9096 9.087 0.9600 1.04 15.895 0.9638 15.159 0.9800 1.02 21.730 0.9819 20.866 0.9900 1.01 28.516 0.9910 27.706 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. 05291000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 69 - non-zero values 4 - zero values 21 - years with missing values (not used) 0.363 0.300 0.793 0.867 0.197 0.780 1.133 4.180 7.790 4.463 2.660 6.007 3.513 2.920 1.537 0.023 2.843 2.353 3.037 4.693 1.730 0.930 8.767 1.300 0.693 2.167 0.530 2.913 4.367 1.220 3.423 4.310 0.257 1.813 3.627 2.903 2.447 9.567 4.560 0.791 1.690 0.210 2.027 5.110 7.900 1.653 0.900 1.231 1.542 4.637 4.967 16.333 1.670 0.435 1.397 2.263 16.367 6.363 35.600 19.633 17.200 16.800 15.633 8.723 7.050 2.713 12.150 4.780 2.020 The following 7 statistics are based on non-zero values: Mean (logs) 0.389 Variance (logs) 0.310 Standard Deviation (logs) 0.557 Skewness (logs) -0.697 Standard Error of Skewness (logs) 0.289 Serial Correlation Coefficient (logs) 0.427 Coefficient of Variation (logs) 1.433 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.066 0.0642 0.000 0.0200 50.00 0.112 0.0737 0.000 0.0500 20.00 0.238 0.1021 0.000 0.1000 10.00 0.443 0.1493 0.228 0.2000 5.00 0.888 0.2438 0.643 0.5000 2.00 2.838 0.5274 2.581 0.8000 1.25 7.348 0.8110 7.068 0.9000 1.11 11.176 0.9055 10.908 0.9600 1.04 16.544 0.9622 16.226 0.9800 1.02 20.714 0.9811 20.393 0.9900 1.01 24.900 0.9905 24.636 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.