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. 05313500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1932 - 2004 - time period 65 - non-zero values 2 - zero values 6 - years with missing values (not used) 0.400 0.100 0.800 2.100 1.000 1.600 15.000 3.600 1.300 5.500 1.100 2.000 2.000 10.000 4.400 8.000 4.100 2.100 1.900 9.000 2.200 3.000 1.900 3.400 10.000 1.700 3.500 2.800 2.000 6.800 4.600 9.000 2.800 7.200 2.500 1.500 1.600 0.030 0.570 2.300 16.000 1.800 1.700 5.600 3.400 9.800 29.000 43.000 7.500 0.340 0.760 4.400 14.000 9.400 32.000 27.000 16.000 7.800 21.000 3.300 4.900 2.200 6.300 4.300 1.800 The following 7 statistics are based on non-zero values: Mean (logs) 0.522 Variance (logs) 0.311 Standard Deviation (logs) 0.558 Skewness (logs) -0.834 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.478 Coefficient of Variation (logs) 1.068 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.079 0.0396 0.000 0.0200 50.00 0.140 0.0493 0.000 0.0500 20.00 0.311 0.0784 0.144 0.1000 10.00 0.597 0.1269 0.416 0.2000 5.00 1.228 0.2239 1.029 0.5000 2.00 3.973 0.5149 3.779 0.8000 1.25 9.993 0.8060 9.798 0.9000 1.11 14.766 0.9030 14.589 0.9600 1.04 21.017 0.9612 20.826 0.9800 1.02 25.561 0.9806 25.380 0.9900 1.01 29.875 0.9903 29.732 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. 05313500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1932 - 2004 - time period 65 - non-zero values 2 - zero values 6 - years with missing values (not used) 0.614 0.157 0.943 2.614 1.100 1.657 17.714 3.743 1.329 6.000 1.100 2.114 2.000 10.429 4.829 8.771 4.100 2.357 1.957 9.286 2.329 3.014 1.971 3.400 10.000 1.786 4.300 3.000 2.100 6.871 5.886 11.000 3.086 9.086 2.686 1.500 1.600 0.100 0.656 2.614 18.714 1.971 1.700 6.229 4.414 10.829 32.143 43.286 7.543 0.506 1.096 4.400 15.286 9.514 33.000 27.714 17.714 7.971 22.000 3.471 6.029 2.286 6.971 4.943 1.857 The following 7 statistics are based on non-zero values: Mean (logs) 0.572 Variance (logs) 0.267 Standard Deviation (logs) 0.517 Skewness (logs) -0.385 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.472 Coefficient of Variation (logs) 0.904 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.168 0.0396 0.000 0.0200 50.00 0.255 0.0493 0.000 0.0500 20.00 0.467 0.0784 0.261 0.1000 10.00 0.780 0.1269 0.587 0.2000 5.00 1.411 0.2239 1.219 0.5000 2.00 4.030 0.5149 3.846 0.8000 1.25 10.332 0.8060 10.116 0.9000 1.11 16.214 0.9030 15.991 0.9600 1.04 25.435 0.9612 25.128 0.9800 1.02 33.474 0.9806 33.131 0.9900 1.01 42.401 0.9903 42.094 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. 05313500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1932 - 2004 - time period 67 - non-zero values 0 - zero values 6 - years with missing values (not used) 0.850 0.223 1.423 2.953 1.510 2.090 18.867 4.420 1.450 10.527 0.363 1.347 2.533 2.570 12.167 6.113 9.037 4.147 2.473 2.360 12.100 0.153 2.533 3.337 2.330 3.527 10.267 1.997 6.007 3.600 2.153 7.827 6.407 12.267 3.683 11.740 2.810 1.503 1.640 0.204 1.052 3.093 19.000 2.570 2.093 7.800 6.477 13.660 36.967 50.667 7.980 1.032 1.263 4.400 18.700 9.673 36.967 29.267 37.033 8.883 24.267 4.583 6.610 2.537 9.967 6.257 2.267 The following 7 statistics are based on non-zero values: Mean (logs) 0.618 Variance (logs) 0.287 Standard Deviation (logs) 0.536 Skewness (logs) -0.341 Standard Error of Skewness (logs) 0.293 Serial Correlation Coefficient (logs) 0.388 Coefficient of Variation (logs) 0.867 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.173 0.0200 50.00 0.264 0.0500 20.00 0.487 0.1000 10.00 0.822 0.2000 5.00 1.507 0.5000 2.00 4.451 0.8000 1.25 11.902 0.9000 1.11 19.155 0.9600 1.04 30.936 0.9800 1.02 41.533 0.9900 1.01 53.601