geographic information system Articles
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Integrating Bayesian networks and geographic information systems: Good practice examples
Bayesian networks (BNs) are becoming increasingly common in problems with spatial aspects. The degree of spatial involvement may range from spatial mapping of BN outputs based on nodes in the BN that explicitly involve geographic features, to integration of different networks based on geographic information. In these situations, it is useful to consider how geographic information systems (GISs) ...
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Geographic information systems (GIS) for participation: the future of environmental GIS?
The conventional uses of geographic information systems (GIS) in environmental management have been criticized for being undemocratic and avoiding the social dimension of these issues. To address these criticisms, new participatory approaches are being developed by the GIS community. These new techniques involve the integration of conventional spatial data and mental maps showing communities' (or ...
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Advanced GIS Exercise: Performing error analysis in ArcGIS modelbuilder
Knowledge of Geographic Information Systems is quickly becoming an integral part of the natural resource professionals' skill set. With the growing need of professionals with these skills, we created an advanced geographic information systems (GIS) exercise for students at Clemson University to introduce them to the concept of error analysis, stream delineation, model iterations and feedback ...
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Decision making of a local sustainable development policy by using GIS: application to the transportation sector in Ghardaia, Algeria
The aim of this paper is to propose an approach, which considers sustainable indicators and GIS as decision making tools and combine them to build a database to be consulted to define a local sustainable development policy for the transportation sector which was identified by the literature review as problematic in Ghardaia city, Algeria. The application of sustainable indicators of transport ...
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Spatial modelling of groundwater potential in Zimbabwe using geographical information systems techniques
The research was aimed at modelling variations in groundwater potential within Zimbabwe. Input parameters used in the study were: lithology, groundwater productivity, slope, and depth to groundwater, faults, groundwater storage and their interrelationship. Each parameter was first individually classified according to how it promotes or constrains groundwater occurrence. The input parameters were ...
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An assessment of geo-information use during the 2005 Kashmir earthquake response and recommendations to improve future use
The destructive effects of disasters on vulnerable populations will continue to increase as global inhabitants grow in numbers and occupy marginal, often hazard-prone areas. Recent experience has shown that there is a gap between available Geographic Information System technologies and geo-information management tools and their employment during disaster response operations. The goal of this ...
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Integrating multicriteria analysis and geographic information systems: the ordered weighted averaging (OWA) approach
The ordered weighted averaging (OWA) is a family of multicriteria combination (aggregation) procedures. The generality of OWA is related to its capability to implement different combination operators by selecting appropriate order weights. By specifying suitable order weights it is possible to change the form of aggregation from the minimum-type combination through all intermediate types ...
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The role of spatial planning in regional risk management
This paper introduces the tool of spatial planning in close relationship with risk assessment and representation at the regional level. The methodological issues are presented and discussed. Results of a case study (Limmattal region in Switzerland) are reported, and the risk maps for this example are included in the paper.Keywords: GIS, geographic information systems, Switzerland, risk ...
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Using GIS for emergency management: a case study during the 2002 and 2003 flooding in south-east France
Emergency management has always required tools to get geographic information from the affected area. The objectives are to have a general view of the theatre of operations with its geographic characteristics, troop's location, roads and railways, and fighting location. The emergency management of natural hazards is specific because it is necessary to evaluate the appropriate number of emergency ...
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Using a geographic decision support system to plan search and rescue operations
In this paper, we present SARPlan, a geographic decision support system based on optimisation models for planning overland search and rescue operations for missing light aircraft. By optimally allocating the available search effort and by reducing the search area, SARPlan increases the chances of finding lost aircraft and survivors, resulting in saved lives. The emphasis in this presentation is ...
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Transitioning to sustainability: pathways, directions and opportunities
The transition to sustainability requires not only an understanding of the risks that society is facing but the development of pathways that will enable the shift towards sustainability. Such risks include not only resources and global warming but also established economic models and social ethics and values. This paper identifies how the risks facing global societies are being addressed, and ...
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The use of Geographical Information Systems for analysing and visualising biodiversity data
Technology plays a key role in innovative research and it is important that environmental scientists are aware of technologies that are having an impact on their discipline. This paper demonstrates the importance of Geographical Information Systems (GIS) for biodiversity management and research using three powerful analysis functions and a species presence/absence database. The three analysis ...
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Sustainability framework for hazardous materials transport route planning
Hazardous materials (HAZMAT) transport is a vital logistic activity from the supply of raw materials to production units. However, there are risks associated with trucks being involved in accidents during HAZMAT shipment. It is essential that all criteria and factors involved need to be considered prior to HAZMAT transport decision making. The main purpose of this paper is to present a HAZMAT ...
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Transmission Lines routes environmental optimization
The Overhead Transmission Lines routes environmental optimization methodology’s design considers environmental restrictions due to physical, biotic and sociocultural aspects. Priority is given to the most important environmental component on the study area. Geographic Information Systems GIS are used to select best project alternative by means of overlapping operations and map calculator ...
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Crossroads of tourism: a complex spatial systems analysis of tourism and urban sprawl in the Algarve
Urban development combined with city expansion, has brought irreversible consequences for land use and environmental degradation. The balance between stability in urban areas and biodiversity, relates in essence to sustainability and economic development. This economic development in southern Europe is especially affected by service industries such as tourism. Preventing future damage is ...
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The 3rd Danish Hydraulic Institute Software Conference within its sociotechnical context
The two earlier conferences in this series organised by the Danish Hydraulic Institute (DHI), called DHI Software User Conferences, established these gatherings as among the most important events in the hydroinformatics calendar. Building on this success, this third conference in the series introduced an important shift in emphasis away from a primary concentration on users of DHI Software. It ...
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An integrated decision aid system for the development of Saint Charles River alluvial plain, Quebec, Canada
We describe an integrated decision aid system designed to assist land-use planning and management of the alluvial plain of Saint Charles River, Quebec. The first stages of the development of the system consisted in building a georeferenced database managed by a geographical information system (GIS), and to elaborate eight different development scenarios along the Saint Charles River in a multiple ...
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Of water and worms: Guinea worm re-emergence in Niger
This paper aims to provide a better understanding of the re-emergence of Guinea worm into the water bodies of the Tillabéri region of the Niger Sahel. It examines the period of re-emergence and subsequent decline from 2002 until 2006. Using a geographic information system combined with a statistical approach to examine the location data of lakes with Guinea worm-associated cases, it is ...
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Flood risk mapping and vulnerability analysis using GIS: empirical evidences from New Town area, Ondo, Ondo State, Nigeria
Spatial information technologies are changing the way in which decisions are taken in relation to the environment. Geographic information system (GIS) is one of such technologies that help to generate products useful in terrain analysis. In Nigeria, especially in the study area, floodplains and river corridors have been misused resulting in severe environmental hazards. Up-to-date information is ...
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Evaluation of forest fire risk and fire extinction difficulty at the mountainous park of Vikos-Aoos, Northern Greece: use of remote sensing and GIS techniques
In this study the potential of satellite remote sensing coupled with Geographical Information Systems (GIS) for the assessment of fire risk in and around the National Park of Vikos-Aoos, a mountainous area in Northern Greece, is examined. In order for this to be accomplished, recent satellite images of varying spatial resolutions (from 5–30 m) have been selected for processing, whereas satellite ...
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