Influence of Underlying Surface on Distribution of Hourly Heavy Rainfall over the Middle Yangtze River Valley

Figure 3

Diurnal variation of HHR event frequency over the four regions (JH_P, DT_L, MJ_M, and PY_L) around the TLB-YRV. The ordinate axis represents the ratio between the total number of HHR events in the subregion and the number of stations in the subregion, and the abscissa axis represents hours in a day.