IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 8 - CLIMATE CHANGE AND HAZARD MITIGATION : Assessment of Climate Change Impact on IDF Curves: Case Study for Tehran- Iran
Assessment of Climate Change Impact on IDF Curves: Case Study for Tehran- Iran
Author : S. Mehdi Malaekepour, Farhad Yazdandoost and Yaser Tahmasebi Birgani
Typically, urban drainage systems are designed based on Intensity-Duration-Frequency (IDF) curves derived for each region. Inadequacies may prevail if urban engineers fail to take account of the impacts of climate change on IDF curves derivation processes. Therefore, there is a need to modify current IDF curves considering climate change. This paper presents a methodology to derive IDF curves under climate change for Tehran city (Iran) as a case study. In doing so, the output of climate model IPCM4 under B1 and A2 scenarios, are downscaled by Lars-WG model and IDF curves are then derived by empirical methods. Results indicate 15% and 5.7% rise in IDF curves under B1 and A2 scenarios, respectively relative to base period. Presented methodology efficiently helps urban drainage system designers to incorporate future climate variability effects into their designs. This may in turn decrease the probability of urban drainage systems failure due to dramatic changes in climate conditions.
File Size : 514,668 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 19/07/2016
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