Ingénierie des systèmes d’irrigation et de drainage

Analysis of Short Duration Rainfall Intensity Data of Makoran Region-Iran

Abstract

Zainudini MA* and Sardarzaei A

This research conducted over the extreme rainfall intensity - duration - frequency (IDF) relationship, covering return periods from 2 to 100 years. Therefore, this paper presents an analysis of extreme rainfall data from Makoran region, for durations from 15 minutes up to 12 hours. The results are compared with analysis by others of data from other countries, which served to highlight an anomaly in the longer duration results. The shorter duration results are still considered plausible and potentially useful pending more detailed analysis of longer data sets. The statistical analysis of shorter duration rainfall data indicated considerable flood alleviation purposes to that particular study area. The results show the success of both short-term rainfall analysis models for forecast floods in real time. However, study aims to forecast monthly rainfall using time series models and determine appropriate observation data according to different districts rainfall conditions. The flood in Makoran showed conclusively that flood hazard in the area poses a large and yet, untamed problem for both the regulatory body (public) and the local authorities. With increased development in the floodplain the economic implications are likely to grow significantly therefore, a number of mentions the issues are paramount to the area of Makoran.