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. 05040500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 1981 - time period 35 - non-zero values 4 - zero values 33 - years with missing values (not used) 0.900 1.000 1.500 34.000 15.000 1.200 13.000 44.000 25.000 44.000 13.000 25.000 1.200 38.000 25.000 46.000 6.400 0.900 26.000 12.000 21.000 44.000 55.000 1.100 33.000 12.000 10.000 26.000 40.000 15.000 29.000 54.000 2.700 1.800 54.000 The following 7 statistics are based on non-zero values: Mean (logs) 1.067 Variance (logs) 0.383 Standard Deviation (logs) 0.619 Skewness (logs) -0.798 Standard Error of Skewness (logs) 0.398 Serial Correlation Coefficient (logs) 0.070 Coefficient of Variation (logs) 0.580 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.190 0.1115 0.000 0.0200 50.00 0.354 0.1205 0.000 0.0500 20.00 0.849 0.1474 0.000 0.1000 10.00 1.738 0.1923 0.000 0.2000 5.00 3.841 0.2821 1.860 0.5000 2.00 14.086 0.5513 11.453 0.8000 1.25 39.554 0.8205 36.435 0.9000 1.11 61.527 0.9103 58.497 0.9600 1.04 92.071 0.9641 88.559 0.9800 1.02 115.362 0.9821 111.882 0.9900 1.01 138.247 0.9910 135.417 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. 05040500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 1981 - time period 35 - non-zero values 4 - zero values 33 - years with missing values (not used) 2.000 2.000 9.714 39.429 34.286 1.271 13.429 45.286 25.000 44.429 18.857 25.000 1.214 38.429 25.000 48.143 6.400 0.900 26.286 12.714 21.429 44.571 56.143 1.100 33.000 12.571 10.857 26.571 40.571 17.000 29.000 54.000 3.229 1.800 54.429 The following 7 statistics are based on non-zero values: Mean (logs) 1.136 Variance (logs) 0.328 Standard Deviation (logs) 0.572 Skewness (logs) -0.923 Standard Error of Skewness (logs) 0.398 Serial Correlation Coefficient (logs) -0.034 Coefficient of Variation (logs) 0.504 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.272 0.1115 0.000 0.0200 50.00 0.501 0.1205 0.000 0.0500 20.00 1.173 0.1474 0.000 0.1000 10.00 2.338 0.1923 0.000 0.2000 5.00 4.976 0.2821 2.495 0.5000 2.00 16.689 0.5513 13.797 0.8000 1.25 42.091 0.8205 39.148 0.9000 1.11 61.602 0.9103 58.978 0.9600 1.04 86.210 0.9641 83.500 0.9800 1.02 103.411 0.9821 100.912 0.9900 1.01 119.190 0.9910 117.272 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. 05040500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1910 - 1981 - time period 35 - non-zero values 4 - zero values 33 - years with missing values (not used) 2.000 2.000 13.467 57.200 39.000 1.640 15.767 47.167 25.633 51.433 19.533 25.367 2.240 40.800 26.033 50.333 6.843 0.973 28.900 14.267 23.567 47.633 58.900 1.410 34.433 14.533 12.333 33.600 41.733 22.267 29.000 54.633 4.040 1.910 58.567 The following 7 statistics are based on non-zero values: Mean (logs) 1.189 Variance (logs) 0.308 Standard Deviation (logs) 0.555 Skewness (logs) -0.933 Standard Error of Skewness (logs) 0.398 Serial Correlation Coefficient (logs) -0.001 Coefficient of Variation (logs) 0.467 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.342 0.1115 0.000 0.0200 50.00 0.621 0.1205 0.000 0.0500 20.00 1.423 0.1474 0.000 0.1000 10.00 2.786 0.1923 0.000 0.2000 5.00 5.805 0.2821 2.967 0.5000 2.00 18.791 0.5513 15.625 0.8000 1.25 45.997 0.8205 42.885 0.9000 1.11 66.417 0.9103 63.686 0.9600 1.04 91.771 0.9641 88.998 0.9800 1.02 109.273 0.9821 106.740 0.9900 1.01 125.184 0.9910 123.254 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.