Post-disaster Reconstruction in Zhengzhou
On the evening of July 20, 2021, Zhengzhou Meteorological Bureau made a data sorting and summary of this extraordinarily heavy rainfall: from 16:00 to 17:00 on the 20th of Zhengzhou, the rainfall of one hour reached 201.9mm; from 20:00 on the 19th to 20:00 on the 20th, the rainfall of a single day was 552.5mm; from 20:00 on the 17th to 20:00 on the 20th, the rainfall of the three-day process was 617.1mm. where the hourly precipitation, single-day precipitation have broken the 60-year historical record since the establishment of Zhengzhou station in 1951. Zhengzhou perennial average annual rainfall of 640.8mm, equivalent to the amount of the past year under these three days.