Recent years have seen an increase in floods with severe damage due to the intensity and frequency of rains. One periodic hydrological problems affecting Jeddah city, second-biggest city Saudi Arabia, is unexpected flash flooding. In dam breaks, water that has been retained released uncontrollably. This study related a flood simulation methodology after possible break New Um Al-Khair Dam, built 2012 outside residential areas, replace Old Dam inside area, which broke January 2011. fact, we...

Geographic Information Systems (GISs) have an essential part to play in the management and planning of electricity distribution. Since network data was previously conducted Tunisia based on paper maps plans, purpose this study is present a case for MV/LV (Medium Voltage/Low Voltage) electrical region Medjez El Bab (North-West Tunisia), GIS, Web, 3D Web create intelligent network, which will be decision-making tool. Analyses vehicle transport pedestrian accessibility between installations...

Abstract Since the early 1980s, several regions of Morocco have experienced alternating series wet and dry periods related to climate change, with significant consequences for country’s economy. This study aims map flood hazards by using a hydraulic modeling approach, specific focus on Oued (river) Zaouiat Sidi Hamza passing through township belonging High Ziz watershed (province Midelt, region Drâa-Tafilalet, Morocco). Hydraulic simulation were carried out followed mapping hazard. The River...

In arid and hyper-arid zones, groundwater exploration is one of the most significant ways to locate potential new water supplies. Geophysical prospecting currently successfully used method for locating supplies, but it rather costly. Satellite remote sensing (RS) detection, however, with its integration Geographic Information Systems (GIS) provides best chance identifying initially evaluating water-bearing formations. western part Saudi Arabia, Wadi Na'man has centuries been major sources...

Environmental monitoring and evaluation (M&E) systems are indispensable tools for sustainable land management, especially in dry fragile ecosystems. The reporting dissemination of its products indicators the key roles to perform their missions. Furthermore, overall success such multilateral projects networks depends on well-organized infrastructures spatial data management. A infrastructure (SDI) is an efficient framework centralize management information related best sharing exchange...

The study of the localization girls' secondary schools in Jeddah shows that school map is both a diagnostic and perspective tool for policies. It also research, measuring accessibility thus helping decision- makers education sector (Ministry education, regional directorates, etc.) insofar as it makes possible to visualize scenarios educational facilities. Through present study, we have developed showing distribution Jeddah. This some households low these schools. That has enabled us propose...

It is well-known that, when dealing with density of population, most the proposed maps choose easiest and probably understandable cartographic method, i.e. choropleth method. Nevertheless, for heterogonous spaces those observing intense spatial dynamic, it proven that this method has many lacks deficiencies. This case Jeddah city (the second largest in Saudi Arabia), which a very contrasted urban place regards to its social structure, organization land use besides fact witnesses profound...

La nappe alluvionnaire de Metline-Ras Jebel-Raf Raf (gouvernorat Bizerte, côte Nord Est la Tunisie), qui occupe une superficie 35 km 2 , représente ressource économique jugée prioritaire du fait qu’elle est utilisée dans les domaines d’irrigation et consommation domestique. L’aire occupée essentiellement par des zones agricoles caractérisées utilisation plus en importante engrais chimiques représentent, rejets industrielles, un risque permanent pour qualité eaux souterraines. L’étude...

An Hand von einfachen Modellen wird gezeigt, daß man die Theorie der Automatik auf das Gebiet Lagerhaltung anwenden kann. Ein kontinuierliches lineares System und ein diskretes werden untersucht. Für erste dieLaplace-Transformation verwendet, für zweite diez- modifiziertez-Transformation. Schließlich Zeitbereichmethode eingeführt eine Anwendung davon gezeigt.

AbstractL’exploitation des ressources en eau de la nappe Metline-Ras Jebel-Raf Raf est un impératif économique jugé prioritaire étant donné que cette région une agricole par excellence puisqu’une grande partie population s’active dans le domaine agricole. L’utilisation pesticides l’agriculture ne cesse s’accentuer, ce fait étude vulnérabilité à pollution les paraissait nécessaire.L’étude plaine côtière a été effectuée appliquant méthode DRASTIC pesticides, logiciels systèmes d’information...

<title>Abstract</title> This study aims to highlight the changes in LULC (land use and Land cover) Tessa watershed (Northwest of Tunisia) between 1993 2023. Remote sensing coupled with geographic information systems (GIS) statistical analysis, are used. Accuracy metrics make it possible evaluate performance image classification method, using calculation producer’s accuracy, user’s overall Kappa coefficient. Two Machine Learning (ML) algorithms related supervised used for two Landsat images...

Understanding paleo-ice flow chronology is essential for reconstructing past ice mass dynamics, interpreting the current landscape, and identifying sources of Quaternary sediments in deglaciated regions. A recent systematic mapping striated bedrock streamlined landforms south Lake Mistassini Canada reveals a complex sequence five flows. The earliest was directed to southeast (SE) originated from NE-SW divide located northwest at Last Glacial Maximum. progressive clockwise rotation this...

As acknowledged that the exploration is first step before reaching discovery of profitable economic raw materials. However, it also representing a high risk financially because possible areas discovered not economically worthwhile, at time stakeholder will confront difficult return their expenses. Therefore, process executed in multiple stages increasing expenses for detection. The business mineral exploration, one cost investment especially if was rugged mountain areas, which to reach and...

In Saudi Arabia, access to healthcare is considered as a human right for citizens and residents.Admittedly, there are spatial inequalities in care services between the inhabitants of cities those rural areas Kingdom.In urban area Jeddah, like other areas, distribution equipment, especially basic state health centers (dispensaries), very uneven.However, few studies have been produced this context.In work, we tried map analyze public dispensaries Jeddah levels these dispensaries.The main...

This paper addresses how open geodata and crowd-sourced geodata, the geoportals might be integrated with mainstream surveying mapping practices to update traditional topomaps quickly inexpensively, that otherwise impossible do it due economic logistic situations. The abundant geographic data on internet could used topographic maps while avoiding time-consuming nature of method. To able use them, is necessary measure quantify quality these data, as well verify their credibility, in order...

Electric energy has become essential nowadays not only for the daily life of each us but also economy different countries. The dissemination geographic information plays an important role in national development as it facilitates communication between managers, investors, and consumers this sector. Since management electricity network data was previously done Tunisia based on paper maps plans, purpose article is to present a case planning GIS, Web, 3D Web which would have significant...