| Issue |
E3S Web Conf.
Volume 403, 2023
XII International Scientific and Practical Forum “Environmentally Sustainable Cities and Settlements: Problems and Solutions” (ESCP-2023)
|
|
|---|---|---|
| Article Number | 06002 | |
| Number of page(s) | 11 | |
| Section | Ecological Cycle: Renewable Heat and Electricity, Waste Water, Vegetation and Cultivation | |
| DOI | https://doi.org/10.1051/e3sconf/202340306002 | |
| Published online | 25 July 2023 | |
Deriving of Intensity–Duration–Frequency (IDF) curves for precipitation at Hanoi, Vietnam
Faculty of Urban Environment and Infrastructure Engineering, Hanoi Architectural University, Km 10, Nguyen Trai Street, Thanh Xuan District, Hanoi, Vietnam
1 Corresponding author: haxuananh.hau@gmail.com
The rainfall Intensity-Duration-Frequency (IDF) relationship is one of the most commonly used tools in establishing rain intensity formulas for urban stormwater drainage design. Currently, the rain formulas being applied in Vietnam according to the design standard TCVN 7957-2008 are mostly Soviet formulas with climate parameters dating back to the 80s of the twentieth century. Therefore, it is no longer suitable for the calculation of the current stormwater drainage system, especially in the context of climate change. In this paper, we used statistical methods to process rain gauge data from 1960 to 2021 to build the IDF curve for the inner city of Hanoi (Vietnam). The results show that the new IDF curves are more suitable for the current climate situation than the IDF curves according to TCVN 7957-2008.
Key words: Rainfall intensity / Design rainfall / Intensity-Duration-Frequency relationship (IDF) / Log-Pearson Type III probability model / Hanoi (Vietnam)
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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