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. 05304500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1939 - 2004 - time period 65 - non-zero values 1 - zero values 0 - years with missing values (not used) 3.000 1.600 11.000 10.000 14.000 7.500 2.600 28.000 8.000 2.400 2.200 11.000 38.000 24.000 32.000 13.000 6.800 3.500 68.000 2.500 7.100 4.700 5.000 25.000 18.000 2.900 3.000 34.000 2.200 19.000 35.000 27.000 61.000 131.000 48.000 8.200 45.000 1.800 8.200 25.000 68.000 37.000 21.000 92.000 120.000 165.000 145.000 340.000 38.000 5.600 5.800 26.000 197.000 105.000 147.000 187.000 200.000 80.000 150.000 159.000 100.000 43.000 109.000 78.000 40.000 The following 7 statistics are based on non-zero values: Mean (logs) 1.351 Variance (logs) 0.403 Standard Deviation (logs) 0.635 Skewness (logs) -0.127 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.585 Coefficient of Variation (logs) 0.470 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.653 0.0250 0.000 0.0200 50.00 1.009 0.0348 0.429 0.0500 20.00 1.923 0.0644 1.472 0.1000 10.00 3.380 0.1136 2.892 0.2000 5.00 6.618 0.2121 6.093 0.5000 2.00 23.133 0.5076 22.480 0.8000 1.25 77.403 0.8030 76.338 0.9000 1.11 143.038 0.9015 141.693 0.9600 1.04 271.804 0.9606 269.411 0.9800 1.02 408.620 0.9803 405.475 0.9900 1.01 586.895 0.9902 583.636 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. 05304500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1939 - 2004 - time period 65 - non-zero values 1 - zero values 0 - years with missing values (not used) 3.000 2.057 12.429 10.571 14.429 7.571 2.800 28.000 8.929 2.400 2.371 12.286 38.429 25.429 32.857 13.286 6.857 3.557 69.714 2.529 7.129 4.814 5.100 25.571 18.000 2.900 80.857 34.000 2.200 21.000 37.143 29.143 65.571 131.000 48.000 8.371 49.714 2.229 9.114 25.000 68.000 37.000 21.000 100.714 120.000 165.429 147.143 367.143 43.571 6.157 5.971 28.714 214.429 106.000 149.143 190.429 210.000 81.429 157.143 164.143 101.286 47.571 151.000 78.429 41.143 The following 7 statistics are based on non-zero values: Mean (logs) 1.394 Variance (logs) 0.393 Standard Deviation (logs) 0.627 Skewness (logs) -0.165 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.553 Coefficient of Variation (logs) 0.450 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 0.725 0.0250 0.000 0.0200 50.00 1.128 0.0348 0.474 0.0500 20.00 2.161 0.0644 1.651 0.1000 10.00 3.807 0.1136 3.254 0.2000 5.00 7.449 0.2121 6.859 0.5000 2.00 25.759 0.5076 25.041 0.8000 1.25 84.211 0.8030 83.079 0.9000 1.11 153.002 0.9015 151.603 0.9600 1.04 284.514 0.9606 282.100 0.9800 1.02 420.982 0.9803 417.872 0.9900 1.01 595.310 0.9902 592.146 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. 05304500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1939 - 2004 - time period 65 - non-zero values 1 - zero values 0 - years with missing values (not used) 3.027 8.357 21.367 17.833 16.800 8.933 3.530 29.000 9.500 2.847 2.727 13.933 41.300 30.800 39.500 14.433 7.127 4.170 85.700 2.797 7.407 7.310 5.220 26.233 18.767 2.920 117.500 34.833 3.520 21.000 37.800 33.200 75.200 131.000 48.000 9.200 51.767 2.547 15.593 25.000 68.067 37.000 21.367 114.867 133.233 181.833 153.767 395.467 45.767 11.163 7.850 28.900 215.867 109.333 155.467 193.933 256.933 87.100 168.000 204.767 106.767 54.033 161.700 81.167 43.233 The following 7 statistics are based on non-zero values: Mean (logs) 1.457 Variance (logs) 0.358 Standard Deviation (logs) 0.598 Skewness (logs) -0.139 Standard Error of Skewness (logs) 0.297 Serial Correlation Coefficient (logs) 0.530 Coefficient of Variation (logs) 0.411 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 1.011 0.0250 0.000 0.0200 50.00 1.530 0.0348 0.679 0.0500 20.00 2.820 0.0644 2.188 0.1000 10.00 4.811 0.1136 4.149 0.2000 5.00 9.081 0.2121 8.398 0.5000 2.00 29.571 0.5076 28.784 0.8000 1.25 92.061 0.8030 90.871 0.9000 1.11 163.754 0.9015 162.310 0.9600 1.04 298.654 0.9606 296.194 0.9800 1.02 437.154 0.9803 434.010 0.9900 1.01 612.903 0.9902 609.726 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.