Pucknell S, Kjeldsen TR, Haxton T, Jeans J and Young AR (2020) Estimating the probable maximum flood in UK catchments using the ReFH model. Dams and Reservoirs 30(3): 85–90, https://doi.org/10.1680/jdare.20.00015.
The authors have identified that the estimated summer model parameters and subsequent final summer results reported were incorrect. Accordingly, the relevant figures and tables have been updated (see below). These changes do not have an appreciable impact on the final results hence no changes to the text or conclusions of the study are necessary.
(corrected). Estimated model parameters for Equation 4
| Summer | Winter | |||
|---|---|---|---|---|
| a | b | a | b | |
| Incl. outlier | 0.9164 | 1.1103 | 0.5522 | 3.2205 |
| Excl. outlier | 0.98452 | 0.8849 | 0.6339 | 2.8515 |
(corrected). Estimates of summer and winter PMF obtained from ReFH2.2 and the FSR/FEH models for all 15 test catchments
| Catchment | ReFH2 PMF: m3/s | ReFH2 PMF Season | Summer event as % of PMF | Winter event as % of PMF | FSR PMF: m3/s | FSR PMF Season |
|---|---|---|---|---|---|---|
| Loch Craisg | 9.7 | S | 100 | 68 | 10.4 | S |
| Little Denny | 9.4 | S | 100 | 73 | 12.5 | S |
| Loch Gleann | 17.7 | S | 100 | 87 | 15.51 | W |
| Parkhill House | 5.0 | S | 100 | 86 | 8.4 | S |
| Leperstone | 13.4 | W | 73 | 100 | 17.8 | S |
| Higher Naden | 71.3 | S | 100 | 94 | 75.6 | S |
| Lower Carriston | 23.0 | S | 100 | 76 | 33.9 | S |
| Nanpantan | 58.7 | S | 100 | 47 | 40.9 | S |
| Upper Neuadd | 129.1 | S | 100 | 91 | 133.3 | S |
| Crafnant | 96.7 | W | 96 | 100 | 95.1 | S |
| Usk | 244.9 | S | 100 | 89 | 217.4 | S |
| Colt Crag | 229.9 | S | 100 | 49 | 127.2 | S |
| Loch Kirbister | 145.6 | S | 100 | 70 | 133.2 | S |
| Staunton Harold | 178.8 | S | 100 | 66 | 166.4 | S |
| Roadford | 411.0 | S | 100 | 80 | 377.8 | S |
(corrected). Observed and predicted values of CPMFini/Cini plotted as a function of Cmax for 15 catchments (winter and summer)
(corrected). Observed and predicted values of CPMFini/Cini plotted as a function of Cmax for 15 catchments (winter and summer)
(corrected). Comparison of PMF as estimated by the ReFH2 model (y-axis) and the FSR/FEH method (x-axis) for both summer (triangle) and winter (circle) events. ReFH2.3 results are presented for comparison.
(corrected). Comparison of PMF as estimated by the ReFH2 model (y-axis) and the FSR/FEH method (x-axis) for both summer (triangle) and winter (circle) events. ReFH2.3 results are presented for comparison.
