Abstract
The objective of the study is to establish the hydrological characteristics, the hydrological behavior of river basins in arid and semi-arid south-eastern Algeria (establish of methodologies and necessary working tools for planning the development and management of water resources). The study on floods in Algeria is established by the National Agency of Water Resources (ANRH shows that the country is confronted with the phenomenon of very destructive floods and floods especially in arid and semi-arid regions). Flooding of rivers in these areas is less known. They are characterized by their sudden duration (rain showers, thunderstorm). The duration of the flood is in the order of minutes to hours. The human and material damages caused by these floods are still high. The study area encompasses three watersheds in semi-arid, arid south and Algeria. There are pools of Chott-Melghir (68,751 km2), highland Constantine-07 (9578 km2) and El Hodna-05 basin (25,843 km2). The total area of this zone is about 104,500km2. Studies of protection against floods and design studies of hydraulic structures (spillway, storm basin, etc.) require the raw data which are often unknown in several places particularly at ungauged wadis of these areas.
Highlights
Flooding is a submersion which may affect large natural and urban areas; it corresponds to the overflow of water during a flood
A suitability test type Cramer-von Mises recently developed by Genest et al (2006) has been implemented in order to find the best fit. This methodology has been applied on three watersheds in semi-arid areas in Algeria
1891.1 2627.1 3159.5 4668.2 3494.5 1898.7 1779.3 1045.9 723.77 1008.5 1293.9 891.78 1665.3 1740.5 649.86 nition In the following text, with reference to the work of Nelsen (1998), Genest & MacKay (1986), Denuit & Charpentier (2004), we will try to give a precise definition of the copula, as well as some basic methods for parameter estimation of copula properties will be reviewed and fit testing to select the copula we describe each of the margins which is uniform on the interval (0,1)
Summary
Flooding is a submersion (fast or slow) which may affect large natural and urban areas; it corresponds to the overflow of water during a flood. The floods happen when soil and vegetation cannot absorb any water runoff and cause elevation of the bed of the river. Most often, it does not overflow, but the water runs sometimes in quantities which cannot be transported in the beds of rivers to the basins or retained in natural or artificial. Example of Multivariate Analysis Frequency The objective of this Model is to provide a trivariate flood frequency analysis (Tip, volume and duration) using a copula (meta-elleptique). A suitability test type Cramer-von Mises recently developed by Genest et al (2006) has been implemented in order to find the best fit This methodology has been applied on three watersheds in semi-arid areas in Algeria. “Copulas are functions that join or couple multivariate functions to their one dimensional margins” [7]
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.