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. 05290000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2002 - time period 43 - non-zero values 10 - zero values 9 - years with missing values (not used) 1.500 2.000 0.200 0.500 1.600 0.100 0.100 0.400 0.600 0.400 0.200 0.200 0.700 0.100 0.100 0.200 0.200 0.800 0.500 0.300 0.300 0.050 0.510 0.570 0.050 0.060 0.030 0.050 0.420 0.700 0.050 0.160 4.200 0.550 9.600 3.500 3.000 1.100 1.400 1.200 3.200 1.100 2.000 The following 7 statistics are based on non-zero values: Mean (logs) -0.374 Variance (logs) 0.371 Standard Deviation (logs) 0.609 Skewness (logs) 0.043 Standard Error of Skewness (logs) 0.361 Serial Correlation Coefficient (logs) 0.490 Coefficient of Variation (logs) -1.631 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.017 0.1968 0.000 0.0200 50.00 0.025 0.2049 0.000 0.0500 20.00 0.043 0.2292 0.000 0.1000 10.00 0.071 0.2698 0.000 0.2000 5.00 0.130 0.3509 0.020 0.5000 2.00 0.419 0.5943 0.276 0.8000 1.25 1.373 0.8377 1.114 0.9000 1.11 2.569 0.9189 2.221 0.9600 1.04 5.032 0.9675 4.368 0.9800 1.02 7.787 0.9838 6.866 0.9900 1.01 11.553 0.9919 10.540 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. 05290000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2002 - time period 48 - non-zero values 5 - zero values 9 - years with missing values (not used) 0.043 0.029 1.614 2.000 0.300 0.500 1.743 0.100 0.143 0.557 0.843 0.400 0.014 0.200 0.214 0.029 0.729 0.100 0.100 0.043 0.200 0.200 1.100 0.600 0.300 0.300 0.050 0.539 0.671 0.063 0.077 0.041 0.073 0.420 0.727 0.050 0.204 4.200 0.609 9.600 3.586 3.514 1.214 1.457 1.329 3.229 1.186 2.457 The following 7 statistics are based on non-zero values: Mean (logs) -0.452 Variance (logs) 0.460 Standard Deviation (logs) 0.678 Skewness (logs) -0.055 Standard Error of Skewness (logs) 0.343 Serial Correlation Coefficient (logs) 0.418 Coefficient of Variation (logs) -1.501 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.009 0.1034 0.000 0.0200 50.00 0.014 0.1125 0.000 0.0500 20.00 0.026 0.1396 0.000 0.1000 10.00 0.047 0.1849 0.006 0.2000 5.00 0.095 0.2755 0.053 0.5000 2.00 0.358 0.5472 0.291 0.8000 1.25 1.320 0.8189 1.192 0.9000 1.11 2.589 0.9094 2.414 0.9600 1.04 5.279 0.9638 4.938 0.9800 1.02 8.337 0.9819 7.861 0.9900 1.01 12.547 0.9909 12.024 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. 05290000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1941 - 2002 - time period 52 - non-zero values 1 - zero values 9 - years with missing values (not used) 0.147 0.700 2.187 2.400 0.640 0.573 2.257 0.307 0.207 0.040 0.713 1.487 0.510 0.163 0.260 0.300 0.150 1.453 0.077 0.167 0.157 0.143 0.440 0.230 1.307 0.840 0.143 0.397 0.394 0.050 0.769 1.052 0.133 0.136 0.093 0.004 0.108 0.420 0.760 0.051 0.282 4.200 0.838 9.633 4.327 4.010 1.780 2.143 1.560 4.307 1.943 3.820 The following 7 statistics are based on non-zero values: Mean (logs) -0.322 Variance (logs) 0.427 Standard Deviation (logs) 0.654 Skewness (logs) -0.466 Standard Error of Skewness (logs) 0.330 Serial Correlation Coefficient (logs) 0.470 Coefficient of Variation (logs) -2.027 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.009 0.0287 0.000 0.0200 50.00 0.015 0.0385 0.002 0.0500 20.00 0.033 0.0679 0.022 0.1000 10.00 0.065 0.1170 0.052 0.2000 5.00 0.140 0.2151 0.125 0.5000 2.00 0.535 0.5094 0.515 0.8000 1.25 1.726 0.8038 1.698 0.9000 1.11 2.991 0.9019 2.960 0.9600 1.04 5.135 0.9608 5.089 0.9800 1.02 7.107 0.9804 7.054 0.9900 1.01 9.371 0.9902 9.322 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.