2025 Volume 81 Issue 16 Article ID: 24-16134
Precipitation from two ensemble climate projections with different spatial resolution were compared. Comparisons were conducted for five river basins in Kyushu, Japan. Additionally, the river discharge estimated from numerical experiments using bias-adjusted precipitation as input values was also analyzed. The results indicate that the 20-km resolution experiment reproduced a variety of peak discharge at the same rainfall due to the large number of ensemble experiments. In contrast, the 5-km resolution experiment reproduced the designed peak discharge in each basin with a limited number of ensemble experiments, thereby demonstrating the advantages and disadvantages of using the 5-km resolution experiment in the evaluation of extreme discharge.
