PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda
Version 1
: Received: 29 May 2021 / Approved: 1 June 2021 / Online: 1 June 2021 (11:14:54 CEST)
How to cite:
Jean Claude, N.; Lin, S.; Fabrice, N.; Twagirayezu, G.; Khan, J.; Marnn, P.; Yousef, A.A.A.A.; Dawuda, U.K.; Bazel, M.A.A.; Hussein, A.A.; Irumva, O. Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda. Preprints2021, 2021060025. https://doi.org/10.20944/preprints202106.0025.v1
Jean Claude, N.; Lin, S.; Fabrice, N.; Twagirayezu, G.; Khan, J.; Marnn, P.; Yousef, A.A.A.A.; Dawuda, U.K.; Bazel, M.A.A.; Hussein, A.A.; Irumva, O. Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda. Preprints 2021, 2021060025. https://doi.org/10.20944/preprints202106.0025.v1
Jean Claude, N.; Lin, S.; Fabrice, N.; Twagirayezu, G.; Khan, J.; Marnn, P.; Yousef, A.A.A.A.; Dawuda, U.K.; Bazel, M.A.A.; Hussein, A.A.; Irumva, O. Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda. Preprints2021, 2021060025. https://doi.org/10.20944/preprints202106.0025.v1
APA Style
Jean Claude, N., Lin, S., Fabrice, N., Twagirayezu, G., Khan, J., Marnn, P., Yousef, A.A.A.A., Dawuda, U.K., Bazel, M.A.A., Hussein, A.A., & Irumva, O. (2021). Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda. Preprints. https://doi.org/10.20944/preprints202106.0025.v1
Chicago/Turabian Style
Jean Claude, N., Ahmed Al-aizari Hussein and Olivier Irumva. 2021 "Establishment of Rainfall Intensity-Duration-Frequency Equations and Curves Used to Design an Appropriate and Sustainable Hydraulic Structure for Controlling Flood in Nyabugogo Catchment-Rwanda" Preprints. https://doi.org/10.20944/preprints202106.0025.v1
Abstract
Due to the increase in the emission of greenhouse gases, the hydrologic cycle is being altered on the daily basis. This has affected the variations in relations of intensity, duration, and frequency of rainfall events. Intensity Duration Frequency (IDF) curves describe the relationship between rainfall intensity, rainfall duration and return period. IDF curves are one of the most often applied implements in water resource engineering, in areas such as for operating, planning and designing of water resource projects, or for numerous engineering projects aimed at controlling floods. In particular, IDF curves for precipitation answer problems of improper drainage systems or conditions and extreme characters of precipitation which are the main cause of floods in Nyabugogo catchment. This study aims to establish Rainfall IDF empirical equations, curves and hydrological discharge (predicted peak rate of runoff (Qlogy)) equations for eight Districts that will be used for designing an appropriate and sustainable hydraulic structures for controlling flood to reduce potential loss of human and aquatic life, degradation of water, air and soil quality and property damage and economic lessen caused by flood in Nyabugogo catchment. However Goodness of Fit tests revealed that Gumbel’s Extreme-Value Distribution method appears to have the most appropriate fit compared with Pearson type III distribution for validating the Intensity-Duration-Frequency curves and equations through the use of daily annual for each meteorological station. The findings of the study show that the intensity of rainfall increases with a decrease in rainfall duration. Additionally, a rainfall of every known duration will have a higher intensity if its return period is high, while the predicted peak rate of runoff (Qlogy) increases also with an increase in the intensity of rainfall.
Keywords
Adequate drainage structures; Rainfall IDF Curve relationship; predicted peak rate of runoff (Qlogy); Gumbel’s Extreme Value Distribution Method.
Subject
Engineering, Automotive Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
