An Intensity Duration Frequency (IDF) curve is a graphical representation that shows the relationship between rainfall intensity, duration, and frequency. This curve is developed to help in the design of stormwater management systems and infrastructure by providing information on the expected rainfall patterns in a specific location.
The IDF curve developed in Yirgalem town provides valuable insights into the rainfall characteristics of the area, such as the intensity of rainfall events, their duration, and the frequency at which they occur. By analyzing this curve, engineers and urban planners can make informed decisions about the design and capacity of drainage systems, flood control measures, and other infrastructure projects to mitigate the impacts of heavy rainfall events in the town.
Overall, the IDF curve developed for Yirgalem town plays a crucial role in enhancing the resilience of the town's infrastructure to extreme weather events, ultimately contributing to the sustainable development and safety of the community.
Inhaltsverzeichnis (Table of Contents)
- Introduction
- Intensity-Duration-Frequency curves
- Estimation of IDF parameters
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This study focuses on developing rainfall Intensity-Duration-Frequency (IDF) curves for Yirgalem town, Ethiopia, based on 25 years of observed maximum daily rainfall data. The objective is to utilize these curves to predict future rainfall events and support the design of engineering infrastructures in the town, enabling more robust planning and development.
- Rainfall intensity and frequency
- Development of IDF curves
- Use of IDF curves in engineering design and risk prediction
- Impact of urbanization on rainfall characteristics
- Application of statistical methods for rainfall analysis
Zusammenfassung der Kapitel (Chapter Summaries)
- Introduction: The chapter introduces the significance of rainfall data in various hydrological and hydraulic applications, emphasizing the need for reliable IDF curves to inform infrastructure design and flood management, particularly in rapidly urbanizing areas like Yirgalem town.
- Intensity-Duration-Frequency curves: This chapter elaborates on the concept of IDF curves, detailing their construction and application. It highlights the relationship between rainfall intensity, duration, and frequency, emphasizing the importance of accurate rainfall data for determining these parameters.
- Estimation of IDF parameters: This chapter focuses on the statistical analysis of rainfall data using the Gumbel Extreme-Value frequency distribution, a widely recognized method for estimating extreme rainfall events. It explores different probability distributions and their suitability for analyzing rainfall data in Ethiopia.
Schlüsselwörter (Keywords)
The primary focus of this work lies on rainfall characteristics, specifically intensity, duration, and frequency, within the context of urban development. It utilizes statistical methods and the Gumbel Extreme-Value distribution to create IDF curves, which are essential tools for risk assessment, infrastructure design, and flood management in areas like Yirgalem town in Ethiopia. Key terms include rainfall intensity-frequency, IDF curves, Gumbel distribution, urban development, and flood management.
- Quote paper
- Wondimagegn Hantalo (Author), 2024, Sanitary Engineering and Urban Drainage. A Report on IDF curve for Yirgalem City, Munich, GRIN Verlag, https://www.grin.com/document/1462416
