Discussion on Some Problems about Urban Rainstorm Intensity Formula in Current Code

Some problems such as complicated calculation and unreasonable sampling method existing in formulation of current urban rainstorm intensity formula were analyzed.Based on collection of observation data from more than 700 precipitation stations in Zhejiang Province,48 stations located at urban areas and with longer series data,and 1 688 annual precipitation data were selected after analysis and comparison.A set of convenient,high-adaptability and highly precise formulation methods for urban rainstorm intensity formula was put forward by applying modern hydrology theory.It has high practical application value.