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. 05300000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 47 - non-zero values 22 - zero values 25 - years with missing values (not used) 1.000 2.200 5.900 3.400 2.600 6.000 1.500 2.000 0.500 8.900 1.400 5.800 4.800 0.300 4.800 13.000 0.200 0.300 2.700 0.200 2.000 1.600 3.300 6.400 9.400 0.080 0.030 0.380 1.300 6.400 0.450 0.010 0.600 0.090 3.400 25.000 1.100 15.000 15.000 68.000 25.000 44.000 12.000 19.000 1.800 2.500 0.030 The following 7 statistics are based on non-zero values: Mean (logs) 0.279 Variance (logs) 0.733 Standard Deviation (logs) 0.856 Skewness (logs) -0.658 Standard Error of Skewness (logs) 0.347 Serial Correlation Coefficient (logs) 0.374 Coefficient of Variation (logs) 3.073 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.008 0.3257 0.000 0.0200 50.00 0.017 0.3325 0.000 0.0500 20.00 0.054 0.3529 0.000 0.1000 10.00 0.138 0.3870 0.000 0.2000 5.00 0.397 0.4551 0.000 0.5000 2.00 2.354 0.6594 0.633 0.8000 1.25 10.285 0.8638 6.312 0.9000 1.11 19.844 0.9319 14.589 0.9600 1.04 36.901 0.9728 29.675 0.9800 1.02 52.826 0.9864 44.096 0.9900 1.01 71.015 0.9932 61.830 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. 05300000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 52 - non-zero values 17 - zero values 25 - years with missing values (not used) 1.000 2.400 6.500 3.657 2.657 7.571 1.743 2.343 0.571 9.729 1.571 6.029 5.029 0.914 4.871 14.286 0.200 0.300 2.700 0.200 8.186 0.157 0.071 1.600 5.286 6.929 10.000 0.400 0.006 0.040 0.994 1.514 6.929 0.887 0.259 1.206 0.343 0.044 5.957 28.286 0.060 1.657 17.429 15.429 72.143 25.000 45.000 15.000 23.000 2.200 2.986 0.053 The following 7 statistics are based on non-zero values: Mean (logs) 0.257 Variance (logs) 0.787 Standard Deviation (logs) 0.887 Skewness (logs) -0.635 Standard Error of Skewness (logs) 0.330 Serial Correlation Coefficient (logs) 0.356 Coefficient of Variation (logs) 3.447 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.006 0.2539 0.000 0.0200 50.00 0.014 0.2614 0.000 0.0500 20.00 0.045 0.2841 0.000 0.1000 10.00 0.119 0.3217 0.000 0.2000 5.00 0.356 0.3971 0.000 0.5000 2.00 2.242 0.6232 0.916 0.8000 1.25 10.420 0.8493 7.299 0.9000 1.11 20.753 0.9246 16.567 0.9600 1.04 39.896 0.9699 33.593 0.9800 1.02 58.331 0.9849 50.642 0.9900 1.01 79.893 0.9925 72.085 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. 05300000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1911 - 2004 - time period 56 - non-zero values 13 - zero values 25 - years with missing values (not used) 1.200 0.027 4.657 7.833 4.087 2.740 11.517 2.593 2.673 0.727 0.063 11.083 2.237 8.400 5.140 1.703 5.363 17.767 0.687 0.357 0.577 2.797 0.547 11.983 0.657 0.347 1.600 12.433 7.473 10.833 1.289 0.368 0.272 1.975 2.453 8.393 2.617 1.078 2.151 1.292 3.697 25.743 40.167 2.033 0.668 5.540 27.600 16.633 80.300 25.700 51.500 16.833 42.767 5.403 5.473 0.843 The following 7 statistics are based on non-zero values: Mean (logs) 0.498 Variance (logs) 0.507 Standard Deviation (logs) 0.712 Skewness (logs) -0.414 Standard Error of Skewness (logs) 0.319 Serial Correlation Coefficient (logs) 0.379 Coefficient of Variation (logs) 1.429 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.042 0.1965 0.000 0.0200 50.00 0.076 0.2046 0.000 0.0500 20.00 0.177 0.2290 0.000 0.1000 10.00 0.363 0.2696 0.000 0.2000 5.00 0.827 0.3507 0.055 0.5000 2.00 3.528 0.5942 2.152 0.8000 1.25 12.816 0.8377 10.313 0.9000 1.11 23.658 0.9188 20.520 0.9600 1.04 43.499 0.9675 38.430 0.9800 1.02 62.948 0.9838 56.710 0.9900 1.01 86.412 0.9919 80.285 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.