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. 05127000 - streamflow gaging station 1-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1906 - 2004 - time period 52 - non-zero values 31 - zero values 16 - years with missing values (not used) 15.000 113.000 95.000 159.000 131.000 67.000 97.000 32.000 71.000 57.000 22.000 52.000 75.000 91.000 65.000 161.000 97.000 32.000 129.000 8.000 65.000 32.000 129.000 97.000 170.000 32.000 32.000 46.000 97.000 226.000 226.000 155.000 129.000 161.000 82.000 65.000 102.000 214.000 97.000 150.000 21.000 97.000 97.000 182.000 79.000 143.000 27.000 29.000 173.000 102.000 116.000 97.000 The following 7 statistics are based on non-zero values: Mean (logs) 1.893 Variance (logs) 0.103 Standard Deviation (logs) 0.322 Skewness (logs) -0.951 Standard Error of Skewness (logs) 0.330 Serial Correlation Coefficient (logs) 0.088 Coefficient of Variation (logs) 0.170 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 8.535 0.3798 0.000 0.0200 50.00 12.087 0.3860 0.000 0.0500 20.00 19.594 0.4048 0.000 0.1000 10.00 28.969 0.4361 0.000 0.2000 5.00 44.390 0.4988 0.000 0.5000 2.00 87.675 0.6867 44.627 0.8000 1.25 146.865 0.8747 119.222 0.9000 1.11 181.275 0.9373 159.896 0.9600 1.04 217.973 0.9749 201.484 0.9800 1.02 240.662 0.9875 226.342 0.9900 1.01 259.873 0.9937 248.243 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. 05127000 - streamflow gaging station 7-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1906 - 2004 - time period 79 - non-zero values 4 - zero values 16 - years with missing values (not used) 192.857 49.000 145.000 68.429 157.143 250.857 258.571 182.286 195.000 248.429 92.857 261.000 84.000 180.714 146.429 122.286 198.429 206.714 184.714 178.571 174.857 141.286 310.286 194.000 32.143 185.714 261.000 214.000 264.571 288.000 174.286 216.000 218.857 208.714 156.143 142.857 9.286 110.429 167.857 126.286 185.429 260.000 127.143 107.571 395.571 332.429 137.857 318.143 250.000 293.000 235.143 245.571 66.714 199.000 318.143 175.857 95.571 236.714 325.714 95.429 226.429 300.571 285.857 150.143 75.143 33.286 140.286 324.143 262.143 215.143 69.714 221.429 27.429 30.000 253.714 231.857 217.429 131.571 45.286 The following 7 statistics are based on non-zero values: Mean (logs) 2.197 Variance (logs) 0.087 Standard Deviation (logs) 0.294 Skewness (logs) -1.732 Standard Error of Skewness (logs) 0.271 Serial Correlation Coefficient (logs) 0.156 Coefficient of Variation (logs) 0.134 Non- Adjusted Non- Adjusted exceedance Recurrence Estimated exceedance Estimated Probability Interval Streamflow Probability Streamflow ----------- ----------- --------- ----------- --------- 0.0100 100.00 15.055 0.0577 0.000 0.0200 50.00 23.178 0.0672 0.000 0.0500 20.00 41.252 0.0958 4.562 0.1000 10.00 64.241 0.1434 42.903 0.2000 5.00 100.995 0.2386 84.083 0.5000 2.00 189.293 0.5241 181.857 0.8000 1.25 271.636 0.8096 268.656 0.9000 1.11 302.036 0.9048 300.418 0.9600 1.04 323.337 0.9619 322.547 0.9800 1.02 331.903 0.9810 331.440 0.9900 1.01 336.959 0.9905 336.701 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. 05127000 - streamflow gaging station 30-day lowflow - lowflow statistic April 1 - start of season March 31 - end of season 1906 - 2004 - time period 83 - non-zero values 0 - zero values 16 - years with missing values (not used) 201.000 164.900 145.000 19.033 45.567 237.967 120.633 383.600 278.867 280.133 200.200 250.500 306.500 110.400 293.033 94.600 217.633 199.933 129.700 205.833 234.033 214.000 181.867 438.833 231.567 397.933 209.033 41.867 366.600 292.800 286.167 288.600 305.667 218.900 227.333 274.300 261.567 210.033 234.133 51.233 123.833 186.733 142.233 221.767 317.133 257.167 142.133 577.500 349.733 160.533 379.900 273.300 318.533 263.133 277.800 33.900 80.200 202.233 340.567 215.867 132.667 557.367 420.833 117.167 359.367 356.233 314.167 242.433 177.833 59.533 201.033 398.000 365.533 361.400 260.167 323.000 120.533 83.933 295.400 291.300 320.367 160.300 264.800 The following 7 statistics are based on non-zero values: Mean (logs) 2.316 Variance (logs) 0.073 Standard Deviation (logs) 0.271 Skewness (logs) -1.502 Standard Error of Skewness (logs) 0.264 Serial Correlation Coefficient (logs) 0.212 Coefficient of Variation (logs) 0.117 Non-exceedance Recurrence Estimated Probability Interval Streamflow ----------- ---------- --------- 0.0100 100.00 25.959 0.0200 50.00 37.434 0.0500 20.00 61.353 0.1000 10.00 90.162 0.2000 5.00 134.595 0.5000 2.00 240.338 0.8000 1.25 346.003 0.9000 1.11 390.136 0.9600 1.04 425.278 0.9800 1.02 441.522 0.9900 1.01 452.329