Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 367 for “"geographic information system"”.
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Internet-based collaborative geographic information system
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1997, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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Modelling of a temporal object-oriented geographic information system
… and more recently object-oriented databases. Geographic information systems have also been the subject of research during this time. While many models have been developed that add the concept of time to an object-oriented database, most of this work has been concentrated on efficient temporal …
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Geographic Information System Topographic Factor Maps for Wildlife Management
A geographic information system (GIS) was used to create landform measurements and maps for elevation, slope, aspect, landform index, relative phenologic change, and slope position for 3 topographic quadrangles in Virginia. A set of known observation points of the Northern dusky flying squirrel …
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Risk analysis for hazardous materials transportation using geographic information system
… the transportation of hazardous materials using Geographic Information System technology. Alternative highway routes between Wendover and Yucca Mountain were identified and evaluated for specified objective functions to estimate the risks associated with the transportation of hazardous materials. …
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Impact assessment using geographic information system (Gis): Transportation engineering applications
This study addresses the use of geographic information systems (GIS) in several transportation engineering applications. Geographic information systems are shown to exhibit significant potential in impact assessment and complex spatial data management. Advances in computing technology have lead to …
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Watershed nonpoint source management system: a geographic information system approach
… annual, watershed nonpoint source management system (WATNPS) was developed for land management planning. WATNPS simulates annual sediment, nitrogen (chemical and livestock organic), and phosphorus (chemical and livestock organic) yields from nonpoint sources. The system is linked to a GIS …
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Integrating Expert System and Geographic Information System for Spatial Decision Making
… areas, which makes the decision difficult. The geographic information systems (GIS) and the expert systems (ES) have many advantages in solving problems in their prospective areas. Integrating these two systems will benefit in solving spatial decision making problems. In the past, many …
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Creation of a geographic information system database of Pacific Spirit Park
… of the area's natural resources. Appropriate geographic data were collected and entered into a geographic information system (GIS) in order to create a spatial database of the park. Guidelines from published documents on database creation were followed in the development of the park database. …
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Resource Planning For Geographic Information System Implementation in the Utility Industry
Geographic Information System (GIS) technology has been available for thirty years. It is difficult to implement, even though it has been made more user-friendly. An examination of the implementation histories of five GIS in the utility industry reveals common characteristics. Utilities can utilize …
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Geographic information system strategies for improving Landsat land use classification accuracy
This study focuses on POWER Geographic Information System strategies for improving the land use classification and mapping accuracies of Landsat multi spectral scanner (MSS) data. The specific strategies are additional-band, class reduction, exclusion, and conditional. Three classified images …
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Insolation, Precipitation, and Moisture Maps for a Virginia Geographic Information System
Climate information is valuable in understanding the ecology of systems affecting wildlife. This information is often unavailable at the landscape scale. This study evaluated the applicability of several climate factor estimates at the landscape-scale, and illustrated the usefulness of estimated …
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Pre-mining hydrologic analysis using modeling and geographic information system technology
… pre-mining hydrologic conditions. The use of geographic information system (GIS) technology as a tool for improving data management and modeling efficiency was demonstrated. The required input watershed characteristics were digitized, stored, and manipulated using a computerized GIS. …
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Real-time wireless data streaming in a PDA-based geographic information system
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Application of Geographic Information System and Probabilistic Analysis for Water Pipeline Renewal Prioritization
… infrastructure such as the water distribution system needs to be rehabilitated and maintained to provide uninterrupted and intended service, and to minimize possible failure with minimum expenditure. The failure of water distribution system is inherently uncertain and cannot be predicted …
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Nonpoint source pollution modeling of an agricultural watershed within a geographic information system
… managers and researchers have depended on the geographic information system (GIS) technology to determine input parameters and display output from models. There have also been numerous attempts to link GIS with lumped models to extend both the scope and scale of the analysis. The primary goal …
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Geographic information system as a map and survey database for a selected area
… All decisions that are made should be based on information, and especially decisions about our natural resources should be based on geographical information - this is spatial information of our environment. Many users, however, are not aware of the spatial data available or where to find it. In …
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Predictive Probability Model for American Civil War Fortifications using a Geographic Information System
… strengthening the resource base. In turn, this information can be utilized to better interpret and protect valuable cultural resources. A predictive probability model was generated to locate Union Civil War fortifications around Petersburg, Virginia. This study illustrated the ease with which …
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On the design of a multiagent user interface for Next Generation Geographic Information System
… architecture is designed for the Next Generation Geographic Information System(NGGIS) which supports the following advanced features: multiple users, multiple views, direct manipulation, distribution, and intelligence. In this architecture, agent is a basic functional unit. Agents cooperate with …
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An interactive, online Geographic Information System (GIS) for stakeholder participation in environmental site selection
An interactive, online geographic information system (GIS) was developed to enhance the involvement of stakeholders in the public participation processes of site selection issues in the marine environment. Displaying educational material and interactive maps of relevant data, this new tool allows …
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Identifying Secondary Crashes by Using Geographic Information System (GIS) and Determining the Secondary Crashes Characteristics
… secondary crashes with the primary incidents in Geographic Information Systems (GIS) under different spatial-temporal criteria, and 2) to determine the impacts of spatial-temporal criteria on the secondary crash characteristics in terms of crash injury severity, crash types and contributing …
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