[AOS25-10] Ultra-high resolution numerical weather simulation on the heavy rainfall event over the western Japan 2018
Keywords:Numerical wheather prediction model, high-resolution, Western Japan heavy rainfall
The model resolution showed to play a crucial role. The 500-m grid spacing model showed the best performance. The 2-km grid spacing models showed clearly better performance than 5-km models. One of the interesting findings was that in the long time simulation, the model with a larger domain showed better performance than the model with a smaller domain. Overall, we have demonstrated the benefit of using the high-resolution model (500-m grid spacing) with a large model domain.