Journal of Hydrogeology & Hydrologic EngineeringISSN: 2325-9647

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Research Article, J Hydrogeol Hydrol Eng Vol: 2 Issue: 1

Determination of Design Floods by Aspects of Peak Flow and Flood Hydrograph in Watershed of Larba' River, Taza (Morocco)

Badr Layan1, Abdallah Dridri1, Lahcen Benaabidate2* and Mahmoud Zemzami2
1Department of Geology, Faculty of Sciences Dehar Mahraz, USMBA, Fez, Morocco
2Laboratory of Georesources and Environment, Faculty of Sciences and Technology, USMBA, Fez, Morocco
Corresponding author : Fabio Dentale, Ph.D
Assistant Professor in Hydraulics, Maritime Engineering Division University of Salerno (MEDUS), Department of Civil Engineering, Italy
Tel: +39089964088; Fax: +39089964099
E-mail: [email protected]
Received: July 17, 2012 Accepted: September 17, 2012 Published: September 21, 2012
Citation: Dentale F, Donnarumma G, Carratelli EP (2012) Wave Run Up and Reflection on Tridimensional Virtual Breakwater. J Hydrogeol Hydrol Eng 1:1. doi:10.4172/2325-9647.1000102

Abstract

Determination of Design Floods by Aspects of Peak Flow and Flood Hydrograph in Watershed of Larbaâ River, Taza (Morocco)

The major task of a hydrology study is to compute the design flow. There are conceptual and empirical methods for computation of design flow. The following paper shows the Gradex method estimating the design flood and the volumes corresponding of flows. This approach allowed us to know the design floods by aspects of peak flow and flood hydrograph. The study is based on long series of observations (49 years) of the annual maximum daily rainfall, and the Intensity-Duration-Frequency curves of the raingauge station of Taza located in the Larbaâ catchment. The Gradex method aims to find the maximum flow of floods for the rare frequency of occurrence (return time over 100 years). Hence, we attempted to explains why and how the combined use of rainfall and floods of different sub-catchments of Larbaâ River.

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