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. 04015500 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1956 - 1980 - time period 25 - non-zero values 0 - zero values 0 - years with missing values (not used) 1.900 2.800 2.500 2.400 3.200 2.200 2.200 1.500 4.600 6.700 6.600 7.500 7.800 19.000 9.000 8.000 13.000 5.500 7.200 8.900 9.000 1.200 3.500 3.200 4.800 The following 7 statistics are based on non-zero values: Mean (logs) 0.660 Variance (logs) 0.095 Standard Deviation (logs) 0.308 Skewness (logs) -0.046 Standard Error of Skewness (logs) 0.464 Serial Correlation Coefficient (logs) 0.582 Coefficient of Variation (logs) 0.466 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 0.858 0.0200 50.00 1.048 0.0500 20.00 1.412 0.1000 10.00 1.837 0.2000 5.00 2.522 0.5000 2.00 4.599 0.8000 1.25 8.319 0.9000 1.11 11.307 0.9600 1.04 15.648 0.9800 1.02 19.278 0.9900 1.01 23.238 =============================== 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. 04015500 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1956 - 1980 - time period 25 - non-zero values 0 - zero values 0 - years with missing values (not used) 2.429 3.714 2.543 2.429 4.029 2.214 2.243 1.500 4.600 6.757 6.729 7.586 8.229 22.000 9.343 9.243 14.000 5.500 7.271 9.257 9.043 4.014 5.114 3.314 4.900 The following 7 statistics are based on non-zero values: Mean (logs) 0.712 Variance (logs) 0.079 Standard Deviation (logs) 0.282 Skewness (logs) 0.107 Standard Error of Skewness (logs) 0.464 Serial Correlation Coefficient (logs) 0.671 Coefficient of Variation (logs) 0.395 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 1.201 0.0200 50.00 1.413 0.0500 20.00 1.811 0.1000 10.00 2.264 0.2000 5.00 2.979 0.5000 2.00 5.099 0.8000 1.25 8.870 0.9000 1.11 11.926 0.9600 1.04 16.435 0.9800 1.02 20.274 0.9900 1.01 24.534 =============================== 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. 04015500 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1956 - 1980 - time period 25 - non-zero values 0 - zero values 0 - years with missing values (not used) 2.963 5.033 2.687 2.623 4.873 2.483 2.377 1.743 5.237 7.083 7.327 7.713 9.410 22.867 10.330 11.127 15.000 5.933 7.797 16.667 9.800 5.760 9.160 3.627 5.193 The following 7 statistics are based on non-zero values: Mean (logs) 0.780 Variance (logs) 0.083 Standard Deviation (logs) 0.288 Skewness (logs) -0.015 Standard Error of Skewness (logs) 0.464 Serial Correlation Coefficient (logs) 0.623 Coefficient of Variation (logs) 0.369 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 1.280 0.0200 50.00 1.536 0.0500 20.00 2.019 0.1000 10.00 2.573 0.2000 5.00 3.449 0.5000 2.00 6.029 0.8000 1.25 10.516 0.9000 1.11 14.052 0.9600 1.04 19.129 0.9800 1.02 23.338 0.9900 1.01 27.902