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. 05112000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1918 - 2004 - time period 46 - non-zero values 1 - zero values 40 - years with missing values (not used) 10.000 15.000 30.000 22.000 16.000 31.000 45.000 28.000 16.000 8.000 6.700 0.100 5.000 5.000 11.000 8.000 13.000 15.000 11.000 3.200 5.500 11.000 2.000 0.050 12.000 21.000 7.800 0.270 24.000 8.100 0.800 0.380 0.100 6.300 18.000 17.000 23.000 26.000 22.000 17.000 17.000 22.000 25.000 10.000 11.000 12.000 The following 7 statistics are based on non-zero values: Mean (logs) 0.868 Variance (logs) 0.485 Standard Deviation (logs) 0.696 Skewness (logs) -1.853 Standard Error of Skewness (logs) 0.350 Serial Correlation Coefficient (logs) 0.366 Coefficient of Variation (logs) 0.803 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.026 0.0311 0.000 0.0200 50.00 0.074 0.0409 0.000 0.0500 20.00 0.306 0.0702 0.129 0.1000 10.00 0.897 0.1191 0.588 0.2000 5.00 2.666 0.2170 2.205 0.5000 2.00 11.705 0.5106 11.247 0.8000 1.25 26.291 0.8043 26.021 0.9000 1.11 32.830 0.9021 32.672 0.9600 1.04 37.516 0.9609 37.442 0.9800 1.02 39.338 0.9804 39.297 0.9900 1.01 40.361 0.9902 40.338 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. 05112000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1918 - 2004 - time period 47 - non-zero values 0 - zero values 40 - years with missing values (not used) 10.000 15.000 30.000 22.857 16.000 31.000 45.714 28.000 16.000 8.000 7.057 0.271 5.000 5.171 11.000 8.000 13.000 15.286 13.000 3.500 5.843 11.000 2.143 0.087 12.000 22.857 8.957 0.310 24.000 10.043 0.800 0.471 0.100 0.044 7.457 18.000 17.000 23.000 27.000 22.714 19.286 17.857 22.286 25.000 10.714 11.143 13.714 The following 7 statistics are based on non-zero values: Mean (logs) 0.853 Variance (logs) 0.524 Standard Deviation (logs) 0.724 Skewness (logs) -1.752 Standard Error of Skewness (logs) 0.347 Serial Correlation Coefficient (logs) 0.482 Coefficient of Variation (logs) 0.849 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.022 0.0200 50.00 0.064 0.0500 20.00 0.264 0.1000 10.00 0.789 0.2000 5.00 2.408 0.5000 2.00 11.273 0.8000 1.25 27.192 0.9000 1.11 35.123 0.9600 1.04 41.330 0.9800 1.02 43.962 0.9900 1.01 45.543 =============================== 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. 05112000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1918 - 2004 - time period 47 - non-zero values 0 - zero values 40 - years with missing values (not used) 10.000 15.200 30.400 27.267 27.200 33.600 61.800 29.133 16.267 8.133 14.797 1.570 9.907 6.933 11.533 8.700 13.133 18.067 16.100 3.533 6.710 11.467 3.333 0.300 12.467 25.800 11.750 0.465 26.233 13.830 0.925 0.931 0.100 0.060 23.883 19.200 18.533 24.167 27.500 39.000 31.267 21.867 22.833 26.400 13.600 11.800 22.200 The following 7 statistics are based on non-zero values: Mean (logs) 0.972 Variance (logs) 0.444 Standard Deviation (logs) 0.666 Skewness (logs) -1.851 Standard Error of Skewness (logs) 0.347 Serial Correlation Coefficient (logs) 0.471 Coefficient of Variation (logs) 0.685 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.042 0.0200 50.00 0.116 0.0500 20.00 0.446 0.1000 10.00 1.250 0.2000 5.00 3.542 0.5000 2.00 14.588 0.8000 1.25 31.657 0.9000 1.11 39.168 0.9600 1.04 44.517 0.9800 1.02 46.592 0.9900 1.01 47.756