Estimation of maximum one-day rainfall for different return periods in Uttar Pradesh

Abstract

The absence of generalized charts of maximum rainfall for different durations and return periods required for the design of small hydraulic structures is greatly felt by the design engineers in this country, The present study is one such attempt in that direction. In this study simple spatial relationships for one-dayrainfal1 have been developed for the plains of Uttar Pradesh with the help of which point rainfall magnitudes for different return periods can be determined using the 2-year return period values. For the hilly regions of west Uttar Pradesh the magnitudes of one-day rainfall for different return periods have been worked out in respect of only those stations whose rainfall data are continuously available for 60 to 70 years from 1891, it was observed that average ratios of partial-duration series to annual series are almost identical with those obtained in USA.