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Article
Multi-Scale and Multi-Resolution Stochastic Modeling of Subsurface Heterogeneity by Tree-Indexed Markov Chains
A new methodology is proposed to handle multi-scale heterogeneous structures. It can be of importance in the field of hydrogeology and for petroleum engineers who are interested in characterizing subsurface he...
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Article
A Markov Chain Model for Subsurface Characterization: Theory and Applications
This paper proposes an extension of a single coupled Markov chain model to characterize heterogeneity of geological formations, and to make conditioning on any number of well data possible. The methodology is ...
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Article
Modeling hydrologic responses of the Zwalm catchment using the REW approach: propagation of uncertainty in soil properties to model output
The research presented in this paper focuses on the application of a newly developed physically based watershed modeling approach, which is called representative elementary watershed approach. The study stress...
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Article
Open AccessUnderstanding the Non-Gaussian Nature of Linear Reactive Solute Transport in 1D and 2D
In the present study, we examine non-Gaussian spreading of solutes subject to advection, dispersion and kinetic sorption (adsorption/desorption). We start considering the behavior of a single particle and appl...
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Article
Integrated rainfall–runoff and flood inundation modeling for flash flood risk assessment under data scarcity in arid regions: Wadi Fatimah basin case study, Saudi Arabia
This paper presents a proposed integrated approach for flood hazardous evaluation in arid and semi-arid areas. Wadi Fatimah in Saudi Arabia is utilized for implementation of such an approach. The approach cons...
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Article
Empirical equations for flood analysis in arid zones: the Ari-Zo model
Water resources all over the world are facing several problems such as scarcity, pollution, climate change, and global warming. Arid zones especially suffer from either severe drought or severe floods. Scienti...
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Chapter and Conference Paper
Quick Urban Flood Risk Assessment in Arid Environment Using HECRAS and Dam Break Theory: Case Study of Daghbag Dam in Jeddah, Saudi Arabia
Urban flood hazards are becoming a worldwide problem. The change in climatic conditions has caused serious threats to humanity, one of which is the unexpected severe floods.
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Chapter and Conference Paper
Integrating Hydrological and Hydraulic Modelling for Flood Risk Management in a High Resolution Urbanized Area: Case Study Taibah University Campus, KSA
Flood risk management specially in arid urban area in different parts of the world is becoming an essential design criteria for flood protection measures. To contribute towards addressing such issue in a typic...
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Article
The impact of rainfall distribution patterns on hydrological and hydraulic response in arid regions: case study Medina, Saudi Arabia
Rainfall distribution patterns (RDPs) are crucial for hydrologic design. Hydrologic modeling is based on Soil Conservation Services (SCS) type RDPs (SCS type I, IA, II, and III). SCS type II method is widely used...
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Chapter and Conference Paper
Two Dimensional Flood Inundation Modelling in Urban Areas Using WMS, HEC-RAS and GIS (Case Study in Jeddah City, Saudi Arabia)
This research presents a two-dimensional flood inundation modelling in urbanized areas when some features such as roads, buildings, and fences have great effect on flood propagation. Wadi Qows located in Jedda...
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Article
Solute transport model for groundwater contamination in Wadi Bani Malik, Jeddah, Saudi Arabia
Groundwater is susceptible to pollutants. Contamination occurs when human products such as gasoline, oil, and sewage get into the groundwater and cause it to become unsafe for human use. In the last 15 years, ...
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Article
Modeling annual rainfall time series in Saudi Arabia using first-order autoregressive AR(1) model
The objective of this paper is to develop a forecasting model for the annual rainfall depth in Saudi Arabia (SA). The annual rainfall data of four stations are used as a pilot study. The coefficient of variati...
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Article
Dam break analysis and flood disaster simulation in arid urban environment: the Um Al-Khair dam case study, Jeddah, Saudi Arabia
This study used a simulation methodology for dam break analysis and flood simulation in an urbanized arid region, namely Um Al-Khair dam in Jeddah, Saudi Arabia. The analysis was performed using the 2011 rainf...
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Article
A unified approach for hydrological modeling of arid catchments for flood hazards assessment: case study of wadi Itwad, southwest of Saudi Arabia
A unified and systematic approach for hydrological modeling is presented for assessing flood hazards in arid and semi-arid regions with wadi Itwad as a case study. The approach consists of the following steps:...
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Article
Effect of reservoir models and climate change on flood analysis in arid regions
Dams are built in arid regions across watersheds for flood control among other purposes. Capacity-elevation (C-E) curves are vital for reservoir routing and dam operation. Different models are available for re...
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Article
A comparative study of the estimation methods for NRCS curve number of natural arid basins and the impact on flash flood predications
There are various methods to estimate the curve number (CN) for flood studies. In the ungauged basins, hydrologists rely on the use of an NRCS-CN table called (CNdesign). The CNdesign, in this study, is estimated...
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Article
Morphological-hydrological relationships and the geomorphological instantaneous unit hydrograph of Makkah Al-Mukarramah watersheds
The present study focused on develo** the predominant relationships between morphological and morphological-hydrological parameters of watersheds in the Makkah Al-Mukarramah region, Kingdom of Saudi Arabia (...
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Article
Spatiotemporal analysis of the annual rainfall in the Kingdom of Saudi Arabia: predictions to 2030 with different confidence levels
Predictions of future water resources are essential for the strategic plans of any country especially in arid regions such as Saudi Arabia (SA). This paper presents a modeling study of the temporal annual rain...
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Chapter and Conference Paper
Flood Hazards Map** in Arid Region by Integrating Hydrologic and Hydraulic Modeling: Case Study of Wadi Qows, Jeddah, Saudi Arabia
This research presents an integrated approach of hydrologic and hydraulic modeling in estimating flood discharges and map** flood inundation during flood hazards in an urban arid region (Jeddah city, Saudi...
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Article
Open AccessModeling variability of infiltration tests in ephemeral stream beds as a random function for uncertainty quantification
Infiltration processes are highly variable in space and time, and therefore, building reliable hydrological models without considering the variability is questionable. In this research, we propose a methodolog...
