Abstract:
Based on the hourly precipitation of the specialized forecast (GDDZ) and two high-resolution models, CMA-MESO and Southwest Regional Model (SWC), combined with the TS score, hourly frequency, hourly intensity and peak time, 16 precipitaion porcesses in Panxi region in 2021 are tested on hourly scale. The conclusions are as follows: (1) From the hourly precipitation TS score, in the fine rain (0.1 mm), GDDZ performed better from 00:00 to 11:00, and CMA-MESO model performed better from 12:00 to 23:00. CMA-MESO model performed better in the TS scores of heavy rain (7 mm) and heavy rain (15 mm). (2) From the perspective of hourly frequency, the spatial distribution of precipitation frequency predicted by SWC model was closer to the actual situation. In terms of hourly intensity, the precipitation intensity of GDDZ was closer to the actual situation. (3) GDDZ was closer to the actual precipitation peak time. CMA-MESO model was more similar to the real precipitation intensity and peak time of rainfall frequency.