Papers by Keyword: Geographic Information System (GIS)

Abstract: This article presents the results of the suitability assessment and identification of favorable sites for photovoltaic solar power plants connected to the electricity grid in northern Benin. The integration of renewable energies into Benin's energy park constitutes a major challenge for which those in power are seeking an optimal solution. The north of the country has strong solar potential, we based our study on this region in order to evaluate the technical and economic feasibility of photovoltaic power plants. The method adopted consists first of analyzing the opportunity to choose potential sites through the combination of a geographic information system (GIS) and a hierarchical analytical process (AHP) approach. In this process, nine (9) factors were weighted, namely solar irradiation, grid connection infrastructure, topography, land cover and use, surface and soil characteristics, environmental risks, flooding, restricted areas and distances from the road and power grid to determine potential sites. Then thanks to the Technique of Order of Preference by Similarity with the Ideal Solution (TOPSIS), the distances were optimized for the identification of the most favorable sites. The results of the application of the selection criteria applied to the northern zone around the substations of the Beninese Energy Electrical located in Bembereke, Djougou, Kandi, Natitingou and Parakou made it possible to identify 25 potential sites then 15 favorable sites. This hybrid method has the advantage of determining both favorable sites and the capacities of the resulting power plants.

Abstract: Mangrove is an essential coastal vegetation with multiple abilities to protect the land from any hazards that come from the sea, also provides a contribution to combat global climate change by sequestering the carbon in the atmosphere on its stem and root system. Measuring the amount of carbon that can be stored by mangroves using terrestrial surveys is relatively challenging due to the harsh environment. Therefore, an optional method using satellite remote sensing and spatial modeling using Geographic Information Systems (GIS) is needed. This research will combine field sampling and a GIS approach to estimate how much mangroves can store in the research area with spatial interpolation techniques i.e., kriging, spline, topo to raster, and nearest neighbor. To check the accuracy, Root Mean Square Error (RMSE) was used. The most accurate model among others is Spline With Barrier with an RMSE of about 1.82 Mg C Ha-1 with a range of Above-Ground Carbon (AGC) values from 13.94 Mg C Ha-1 to 142.43 Mg C Ha-1. In conclusion, spatial interpolation may assist the mangrove’s carbon spatial modelling with promising accuracy.

Abstract: Flash floods are severe natural disasters due to their suddenness, frequency, and destruction. Every year, flash floods occur in Egypt and Saudi Arabia, which are located in the heart of the Middle East. Extensive areas in Egypt and Saudi Arabia are covered by mountainous topography. Intense rainfall can generate flash floods with their magnitude dependent on geomorphology and storm characteristics. Flash flood hazard assessment is a feasible way to mitigate potential damage and losses. Illumination, review, and comparison of assessment techniques of flash flood hazards represent an urgent necessity to evaluate advances and challenges in this discipline. Google-scholar and Scopus were used to collect 50 recent scientific papers, most of them published between 2011 and 2021, using the keywords: floods, hazards, assessment, Egypt, Saudi Arabia. Remote Sensing (RS) and Geographic Information systems (GIS) are the cornerstones of these studies, which include the Digital Elevation Model (DEM) and geoprocessing tools. The two items facilitate the calculation of morphometric parameters. Dividing the area and determining the hazard level were the main steps in flash flood hazard assessment. The considered studies relied on varied sets of morphometric parameters that ranged from 3 to 24 morphometric parameters. Area, ruggedness ratio, basin shape index, stream frequency, slope index, and drainage density are the common parameters in the assessment of flash flood hazards. In a flood zone, buildings made from brick have better sustainability in terms of both global warming mitigation and life cycle cost than other materials. Future studies are essential to illustrate the relationships between different morphometric parameters and flash flood hazard degree through field data and define a reliable unified set of morphometric parameters to assess the flash flood hazard degree.

Abstract: With the constant development of information technology and the strengthening of safety awareness, people study more and more on the earthquake. In this paper, it conducts analysis of the earthquake at fault by the GIS. First, a detailed description of the data organizational form in the spatial database and the data pretreatment is given; secondly, it discusses the buffer principle and the superposition principle of the seismic correlation, and describes the establishing process of the earthquake buffer and seismic activity; finally, according to the theory, it realizes the system by software. This paper has a positive effect for the geological workers.

Abstract: This paper aims at landscape environment problems of small towns in cold area, the ecological principle, landscape planning and design combining with economics, discusses make use of original equipment and resources ,on the basis of the original small towns ecological landscape in the cold area,the feasibility of the protection and repairment to the ecological landscape in small towns ,probes the mode in ecological landscape industrialization in the universal small towns of cold area, so as to ameliorate the malpractices bring about by the extensive mode of current economic development in the small towns,to open up another road for the development of economy in small towns.

Abstract: With application and popularization of information modeling technology, both Geographic Information Systems (GIS) and Building Information Modeling (BIM) could represent three dimensional models in different fields. By introducing application features of GIS and BIM in Metro construction, this paper presents such a thought that effective combination of GIS and BIM may play a role at different stages in metro construction.

Abstract: Accurate information about the wind resource and the wind energy potential is required for federal and local authority policy initiatives that will expand the use of wind energy. This paper presents the experience of creating an information-analytical system (IAS), based on GIS technologies, for wind energy potential (theoretical and practically achievable) of Leningrad and Pskov regions, located in the North-West of Russia. IAS consists of GIS database coupled with models for support of decision making for regional planning. The paper presents the general methodological approaches and possible practical difficulties during the creation of such systems.

Abstract: This thesis researches on the process of the tourism at home and abroad, and selects Com GIS as the combination of tourism industry and informationization. Based on the tourist market, this thesis takes the task of developing the tourism information system, based on the analysis and the design of the GIS characteristic, the development structure, the system database, the system function, takes the Com GIS software Super Map Objects as platform, takes SQL Server 2000 as the database, has realized system's integration with the Visual Basic, realized multimedia query, buffer analysis, overlay analysis, the optimal path and other functions. This thesis has conducted the exploring research about development of tourism information system, has certain reference to the tourism information construction, and provides comprehensively, accurate traveling information service for tourist, also provides the powerful technical support for tourist resource's scientific management and decision-making.

Abstract: Through the analysis of land use actuality, this paper summarizes the characteristics of land use, in virtue of geographic information system (GIS) platform, the database of land consolidation is constructed, combining with different calculation models of cultivated land and rural residential land consolidation potential, the consolidation potentials of cultivated land and rural residential land are calculated, and the thematic maps about land consolidation potential of each village and town in study area are mapped out. The results show that the land consolidation areas are mainly concentrated in the middle of study area.

Abstract: Seawall is an important barrier of Zhejiang coastal strip. To effectively manage the information of maritime work in Zhejiang and convert the traditional management into the modern management, the information management system of maritime work based on GIS is developed. Take Kaomen seawall for example, the overall structure of information management system based on GIS is designed, focusing on the data entry, spatial attribute show, spatial attribute query, spatial information statistics and analysis. This design plays a significant role in the flood control and disaster reduction in the future, making the information management of maritime work convenient and practical.