Tesi: "Geographic information system"

1

Alvarez, Elma L. "Semantic geographic information system". FIU Digital Commons, 1996. http://digitalcommons.fiu.edu/etd/1262.

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This thesis research describes the design and implementation of a Semantic Geographic Information System (GIS) and the creation of its spatial database. The database schema is designed and created, and all textual and spatial data are loaded into the database with the help of the Semantic DBMS's Binary Database Interface currently being developed at the FIU's High Performance Database Research Center (HPDRC). A friendly graphical user interface is created together with the other main system's areas: displaying process, data animation, and data retrieval. All these components are tightly integrated to form a novel and practical semantic GIS that has facilitated the interpretation, manipulation, analysis, and display of spatial data like: Ocean Temperature, Ozone(TOMS), and simulated SeaWiFS data. At the same time, this system has played a major role in the testing process of the HPDRC's high performance and efficient parallel Semantic DBMS.

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2

Alameh, Nadine Sami. "Internet-based collaborative geographic information system". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/50305.

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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.
Includes bibliographical references (leaves 129-131).
by Nadine Sami Alameh.
M.S.
M.C.P.

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3

Dos-Santos, Sasha. "A geographic information system for dynamic ridematching". [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001046.

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4

Basnet, Badri Bahadur. "Geographic Information System based manure application planning". University of Southern Queensland, Faculty of Engineering and Surveying, 2002. http://eprints.usq.edu.au/archive/00001410/.

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[Abstract]: The disposal of animal waste has become a problem in many parts of the world due to the rapid growth in the number and the size of intensive animal industries. Safe waste disposal sites are rarely available and the relocation and/or treatment of animal waste is seldom economically viable. The reuse of animal waste for energy recovery and re-feeding is also not popular. Animal waste is a valuable source of plant nutrients and a very good soil conditioner, and has been commonly applied as fertiliser to agricultural fields. However, due to the increasing oversupply of animal waste in recent years, it has often been applied in excess to the agricultural fields. Excessive application of animal waste, without due consideration of its implications, is a serious concern. The run-off and leaching losses of nutrients from the fields fertilised with animal waste have contributed significantly to the eutrophication and toxic blue-green algae blooms in surface water systems and nitrification of ground water systems. It has also led to nutrient imbalances in the soils and odour pollution to the surrounding communities. The animal waste, which is a valuable source of plant nutrients, has thus become both an economic and environmental burden, and there is a need to develop a strategy for its sensible use as a fertiliser in agricultural fields. Sensible use of animal waste involves the consideration of all the agricultural, environmental, social, and economical limitations. A rational method of achieving this is to restrict the use of animal waste to sites suitable for such uses, identify areas where it can be relocated and applied economically, limit the application rates to a safe level, and observe appropriate manure management practices. This study addressed each of these components by developing a comprehensive manure application plan (MAP) for the site-specific use of animal waste as fertiliser in agricultural fields. Various geographic information systems (GIS) based techniques, including a weighted linear combination model and map algebra based cartographic modelling, were employed to achieve the goal. The appropriateness of the existing techniques and procedures were evaluated and modified to meet the current input requirements. New methods of analysis were devised as necessary. The Westbrook sub-catchment of the Condamine River catchment in south-east Queensland was selected as the study area. The sub-catchment covers 24,903 hectares and contains 39 intensive animal industries. The catchment is also a part of the Murray-Darling Basin, which has been suffering from toxic blue green algae blooms recurrently since 1991. This study identified that only about one-fifth of the sub-catchment area is suitable for animal waste application. Depending on the method of site suitability analysis and the number of input factors used the suitable area ranged between 16 and 22 percent. This comparatively small area is mainly due to the presence of a large proportion of non-agricultural areas in the sub-catchment. The suitable areas were also found to have various degrees of suitability for waste application. However, the degree of site suitability was affected by the number of input factors used in the analysis, the weighting of the factors, and the method of factor attribute standardisation. Conventional methods of weighting input factors were found to be cumbersome and not particularly suitable. Hence, this study developed a new ‘objective oriented comparison’ method of factor weighting. Standardisation of input factors using a continuous, rather than discrete, classification (ie fuzzy set) method was found to be more consistent in degree of suitability determination. The discrete classification of factor attributes into classes of different numbers and sizes, and the weighting of classes to a sum of one, were identified as a limitation in using this standardisation method. A new ‘weight adjustment’ method was devised and demonstrated to reduce factor-weighting biases. The suitable sites, degree of site suitability, and other relevant spatial and non-spatial information were processed within a GIS framework to develop a comprehensive manure application plan. The inherently high presence of available phosphorus in the soils of the study area was recognised and the P2O5 content in the manure was used as the basis for determining manure application rates. A complimentary nitrogen supply map was also generated. Manure management practices applicable to the areas with a lower degree of suitability were also suggested.

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5

Finniear, Lee John. "An intelligent Geographic Information System for design". Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/32546.

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Recent advances in geographic information systems (GIS) and artificial intelligence (AI) techniques have been summarised, concentrating on the theoretical aspects of their construction and use. Existing projects combining AI and GIS have also been discussed, with attention paid to the interfacing methods used and problems uncovered by the approaches. AI and GIS have been combined in this research to create an intelligent GIS for design. This has been applied to off-shore pipeline route design. The system was tested using data from a real pipeline design project.

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6

Fontanella, Shaun. "Indexing Geographic Information Using the Domain Name System". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345531139.

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7

Bengtsson, Jonas, e Mikael Grönkvist. "Performing Geographic Information System Analyses on Building Information Management Models". Thesis, KTH, Geodesi och satellitpositionering, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208922.

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As the usage of both BIM (Building Information Modelling) and 3D-GIS (Three-Dimensional Geographic Information Systems) has increased within the field of urban development and construction, so has the interest in connecting these two tools. One possibility of integration is the potential of visualising BIM models together with other spatial data in 3D. Another is to be able to perform spatial 3D analyses on the models. Both of these can be achieved through use of GIS software. This study explores how integration of BIM and GIS could look. The goal was to perform typical GIS analyses in 3D on BIM models. Previous research points towards some success within the field through use of the indicated standard format for each tool – IFC (Industry Foundation Classes) for BIM and CityGML (City Geographic Markup Language) for GIS. Transformation between the formats took place through use of the BIM software Revit, the transformation tool FME and the GIS software ArcGIS. A couple of reviewed applications of GIS analyses were chosen for testing on the converted models – indoor network analysis, visibility analysis and spatial analysis for 3D buildings. The input data in the study was several BIM models, both models created for real-life usage and others that only function as sample data within the different software. From the results of the practical work it can be concluded that a simple, automated and full-scale integration does not seem to be within reach quite yet. Most transformations between IFC and CityGML failed to some extent, especially the more detailed and complex ones. In some test cases, the file could not be imported into ArcGIS and in others geometries were missing or existing even though they should not. There were also examples where geometries had been moved during the process. As a consequence of these problems, most analyses failed or did not give meaningful results. A few of the original analyses did give positive results. Combining (flawed) CityGML models with other spatial data for visualisation purposes worked rather well. Both the shadow volume and sightline analyses did also get reasonable results which indicates that there might be a future for those applications. The obstacles for a full-scale integration identified during the work were divided into four different categories. The first is BIM usage and routines where created models need to be of high quality if the final results are to be correct. The second are problems concerning the level of detail, especially the lack of common definitions for the amount of details and information. The third category concerns the connection between local and global coordinate systems where a solution in form of updates to IFC might already be in place. The fourth, and largest, category contains those surrounding the different formats and software used. Here, focus should lie on the transformation between IFC and CityGML. There are plenty of possible, future, work concerning these different problems. There is also potential in developing own tools for integration or performing different analyses than those chosen for this thesis.
I takt med den ökade användningen av både BIM och 3D-GIS inom samhällsbyggnadsprocessen har även intresset för att sammanföra de två verktygen blivit större. En möjlighet med integration är potentialen att visualisera BIM-modeller tillsammans med andra geografiska data i 3D. En annan är att kunna genomföra rumsliga 3D-analyser på modellerna. Båda dessa går att utföra med hjälp av GIS-programvara. Denna studie utforskar hur en integration mellan BIM och GIS kan se ut. Målet är att genomföra typiska GIS-analyser i 3D på BIM-modeller. Tidigare forskning pekar mot vissa framgångar inom området genom att arbeta med det utpekade standardformatet för respektive verktyg – IFC för BIM och CityGML för GIS. Transformation mellan formaten skedde med hjälp av programvarorna Revit, FME och ArcGIS. Ett par framhållna tillämpningar av GIS-analyser valdes ut för tester på de konverterade modellerna – nätverksanalyser inomhus, siktanalyser och rumsliga analyser för 3D-byggnader. Som indata användes flera olika BIM-modeller, både sådana som tillverkats för faktisk användning och modeller som skapats för att användas som exempeldata inom programvarorna. Utifrån resultaten från det praktiska arbetet kan konstateras att en enkel, automatiserad och fullskalig integration mellan verktygen verkar ligga en bit in i framtiden. De flesta transformationerna mellan IFC och CityGML misslyckades i någon aspekt, speciellt de mer detaljerade och komplexa. I vissa testfall kunde filen inte importeras i ArcGIS, i andra saknas eller existerar oväntade geometrier även om importen lyckats. Det finns också exempel där geometrier förflyttats. Som en konsekvens av dessa problem kunde de flesta 3D-analyser inte genomföras alls eller lyckades inte ge betydelsefulla resultat. Ett fåtal av de ursprungliga analyserna gav dock positiv utdelning. Att kombinera (felaktiga) CityGML-modeller med annan rumslig data fungerade förhållandevis väl ur ett visualiseringssyfte. Både skuggvolymsanalysen och framtagandet av siktlinjer från byggnaderna gav någorlunda korrekta resultat vilket indikerar att det kan finnas en framtid gällande de tillämpningarna. Hindren för en fullskalig integration som identifierades genom arbetet delades upp i fyra olika kategorier. Den första är BIM-användning där hög kvalitet på de skapade modellerna är viktigt för korrekta slutresultat. Den andra är detaljeringsgraden där avsaknaden av gemensamma definitioner för detaljeringsgraderna ställer till problem. Den tredje kategorin är koordinat- och referenssystem där en lösning på kopplingen mellan lokala och globala system redan kan finnas på plats i en av de senare utgåvorna av IFC-formatet. Den sista och största kategorin är problematiken kring just format och programvaror där mer arbete på översättningen mellan IFC och CityGML kommer att krävas. I framtiden finns det gott om arbete att göra med dessa olika problem. Det finns också potential att utveckla egna verktyg för integrationen eller att ägna sig åt att göra andra analyser än de som valdes ut i den här studien.

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8

Zhu, Bin, e Hsinchun Chen. "Validating a Geographic Image Retrieval System". Wiley Periodicals, Inc, 2000. http://hdl.handle.net/10150/105934.

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Artificial Intelligence Lab, Department of MIS, University of Arizona
This paper summarizes a prototype geographical image retrieval system that demonstrates how to integrate image processing and information analysis techniques to support large-scale content-based image retrieval. By using an image as its interface, the prototype system addresses a troublesome aspect of traditional retrieval models, which require users to have complete knowledge of the low-level features of an image. In addition we describe an experiment to validate the performance of this image retrieval system against that of human subjects in an effort to address the scarcity of research evaluating performance of an algorithm against that of human beings. The results of the experiment indicate that the system could do as well as human subjects in accomplishing the tasks of similarity analysis and image categorization. We also found that under some circumstances texture features of an image are insufficient to represent a geographic image. We believe, however, that our image retrieval system provides a promising approach to integrating image processing techniques and information retrieval algorithms.

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9

Kleene, J. Wesley. "Watershed nonpoint source management system : a geographic information system approach /". Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-02272007-092409/.

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10

Shesham, Sriharsha. "Integrating Expert System and Geographic Information System for Spatial Decision Making". TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1216.

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Spatial decision making is a process of providing an effective solution for a problem that encompasses semi-structured spatial data. It is a challenging task which involves various factors to consider. For example, in order to build a new industry, an appropriate site must be selected for which several factors have to be taken into consideration. Some of the factors, which can affect the decision in this particular case, are air pollution, noise pollution, and distance from living 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 researchers have proposed integrating systems which extracts the data from the GIS and saves it in the database for decision making. Most of the frameworks which have been developed were system dependent and are not properly structured. So it is difficult to search the data. This thesis proposes a framework which extracts the GIS data and processes it with the help of ES decision making capabilities to solve the spatial decision making problem. This framework is named GeoFilter. This research classifies various types of mechanisms that can be used to integrate these two systems.

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11

Germain, Richard James. "Drought management using a geographical information system". Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178651687.

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12

Hu, You-Heng Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Development, evaluation and application of a geographic information retrieval system". Publisher:University of New South Wales. Surveying & Spatial Information Systems, 2007. http://handle.unsw.edu.au/1959.4/41754.

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Geographic Information Retrieval (GIR) systems provide users with functionalities of representation, storage, organisation of and access to various types of electronic information resources based on their textual and geographic context. This thesis explores various aspects of the development, evaluation and application of GIR systems. The first study focuses upon the extraction and grounding of geographic information entities. My approach for this study consists of a hierarchical structure-based geographic relationship model that is used to describe connections between geographic information entities, and a supervised machine learning algorithm that is used to resolve ambiguities. The proposed approach has been evaluated on a toponym disambiguation task using a large collection of news articles. The second study details the development and validation of a GIR ranking mechanism. The proposed approach takes advantage of the power of the Genetic Programming (GP) paradigm with the aim of finding an optimal functional form that integrates both textual and geographic similarities between retrieved documents and a given user query. My approach has been validated by applying it to a large collection of geographic metadata documents. The third study addresses the problem of modelling the GIR retrieval process that takes into account both thematic and geographic criteria. Based on the Spreading Activation Network (SAN), the proposed model consists a two-layer associative network that is used to construct a structured search space; a constrained spreading activation algorithm that is used to retrieve and to rank relevant documents; and a geographic knowledge base that is used to provide necessary domain knowledge for network. The retrieval performance of my model has been evaluated using the GeoCLEF 2006 tasks. The fourth study discusses the publishing, browsing and navigation of geographic information on the World Wide Web. Key challenges in designing and implementing of a GIR user interface through which online content can be systematically organised based on their geospatial characteristics, and can be efficiently accessed and interrelated, are addressed. The effectiveness and the usefulness of the system are shown by applying it to a large collection of geo-tagged web pages.

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13

Smith, Philip Hartley. "Electrical Distribution Modeling:An Integration of Engineering Analysis and Geographic Information Systems". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/36158.

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This thesis demonstrates the value of integrating electrical distribution engineering analysis with Geographic Information Systems (GIS). The 37-Node IEEE Feeder model was used as the base distribution system in this study. It was modeled separately, both in software capable of unbalanced load-flow and in an industry-standard GIS environment. Both tools utilized were commercially available, off-the shelf products indicative of those used in academia and in basic GIS installations. The foundational data necessary to build these models is representative of information required by a variety of utility departments for a multitude of applications. It is inherent to most systems within an enterprise-level, business-wide data model and therefore can be used to support a variety of applications. In this instance, infrastructure information is assumed to be managed and housed with the GIS. This data provides the required information as input for load-flow calculations. The engineering analysis is performed within DistributionSystem 4.01 and its output is passed back to the GIS in tabular format for incorporation. This thesis investigates the transfer of information between GIS and DistributionSystem 4.01 and demonstrates the extended display capabilities in the GIS environment. This research is implemented on a small scale, but is intended to highlight the need for standardization and automatic integration of these systems as well as others that are fundamental to the effective management of electrical distribution systems.
Master of Science

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14

Kirkby, S. D. "Managing dryland salinisation with an integrated expert system/geographic information system /". Title page, abstract and table of contents only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phk593.pdf.

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15

Cavanaugh, Kenneth J. "The design of a geographic information system utilizing the systems engineering approach /". This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-03302010-020429/.

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16

Sun, Yunli Catherine. "Clustering strategies in an object-relational geographic information system". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24508.pdf.

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17

Didan, Kamel. "Prototype geographic information system for agricultural water quality management". Diss., The University of Arizona, 1999. http://ezproxy.library.arizona.edu/login?url=.

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18

Deaton, Scott Lowrey. "Site investigation quality analysis using a geographic information system". Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/21252.

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19

McCombs, John Wayland II. "Geographic Information System Topographic Factor Maps for Wildlife Management". Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36865.

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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 (Glaucomys sabrinus) was used to build 3 models to delineate sites with landform characteristics equivalent to those known points. All models were built using squirrel observation points from 2 topographic quadrangles. The first model, called "exclusionary", excluded those pixels with landform characteristics different from the known squirrel pixels based on histogram analyses. Logistic regression was used to create the other 2 models. Each model resulted in an image of pixels considered equivalent to the known squirrel pixels. Each model excluded approximately 65% of the Highland study area, but the exclusionary model excluded the fewest known squirrel pixels (12.62%). Both logistic regression models excluded approximately 10% more known squirrel pixels than the exclusionary approach. The models were tested in the area of a third quadrangle with points known to be occupied by squirrels. After the model was applied to the third topographic quadrangle, the exclusionary model excluded the least amount of full-area pixels (79.30%) and only 14.81% of the known squirrel pixels. The second logistic regression excluded 81.16 % of the full area and no known squirrel pixels. All models proved useful in quickly delineating pixels equivalent to areas where wildlife were known to occur.
Master of Science

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20

Wilde, Bryn. "A geographic information system approach to distributed hydrological modelling". Thesis, Cardiff University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327722.

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21

McNinch, Michael D. "Geographic Information System Applications for Water Distribution Asset Management". Connect to resource online, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1254859492.

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22

Vasconcelos, Maria 1963. "Simulation of fire behavior with a geographic information system". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/558097.

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23

Shi, Wei. "Web-based geographic information system for the archives of the Water Resources Institute". CSUSB ScholarWorks, 2007. https://scholarworks.lib.csusb.edu/etd-project/3312.

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This project is focused on the goal of improving access to the Water Resources Institute (WRI) archives using a web-based GIS architecture. This project uses the newest version of ArcGIS Server as a method to support an internet-based map search environment, improved information management and data sharing.

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Cavanaugh, Kenneth J. Jr. "The design of a geographic information system utilizing the systems engineering approach". Master's thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/41851.

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25

Buker, David Gordon. "An interface between the GRASS geographic information system and ORACLE relational detabase management system". FIU Digital Commons, 1993. http://digitalcommons.fiu.edu/etd/1819.

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A query and display interface has been developed between the GRASS geographic information system and the SQL-based ORACLE relational database management system (DBMS) . This interface enables multiple non-spatial attributes of GRASS map features to be maintained with the DBMS. GRASS alone is capable of storing only one attribute per feature. The interface allows the user to provide both spatial (GRASS) and non-spatial (SQL) selection criteria for any query. Spatial selection methods include picking items from the GRASS map with a mouse, and specifying areas of interest with user-drawn (via a mouse) polygons and transects. The results of the combined query are displayed both graphically (the selected GRASS map features are highlighted in a graphics window) and textually (the DBMS attribute data are shown in a text display window). Options include creating reclassified maps based on the DBMS output, and updating the attributes retrieved by a query.

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Wurtz, Joshua. "A geographic information system application to visualize and manage data". Kansas State University, 2015. http://hdl.handle.net/2097/19126.

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Master of Science
Department of Computing and Information Sciences
Scott A. DeLoach
A geographic information system (GIS) allows an individual to map, model, query, and analyze large quantities of data from a database according to their spatial locations. This project uses the ArcGis Java software Development Kit (SDK) to visualize, manipulate, and comprehend large amounts of publicly available information relevant to a spatial location. The application developed uses a graphical user interface to examine the public data of Riley County, Kansas. The user is able to load shapefiles through the interface and then examine the many spatial locations. By examining a spatial location the user is able to view the associated attribute information, manipulate it, and add additional attributes. Beyond viewing information at selected geometric locations, a user can also query the layer(s) to return the spatial locations that fit the query. These abilities can allow a user to understand and visualize patterns that they would not have been able to easily see from looking at the raw data. Increasing users' understanding of the environment they are working with improves their likelihood of success in their desired objectives.

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27

Villeneuve, Julie. "Delineating wetlands using geographic information system and remote sensing technologies". Texas A&M University, 2005. http://hdl.handle.net/1969.1/3135.

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During the last century wetlands have considerably decreased. The principal cause is urbanization, especially in large urban regions such as the Houston area. In order to protect the remaining wetlands, they have to be monitored carefully. However monitoring wetland is a difficult and time-demanding task because it has to be done repetitively on large areas to be effective. This study was conducted to determine if Geographical Information System (GIS) and remote sensing technologies would allow accurate monitoring of wetland as a less time-consuming method. With this idea, a suitability model was developed to delineate wetlands in the Houston area. This model combined GIS and remote sensing technologies. The data used for this study were as high spatial resolution as possible and were generally easy to obtain. This suitability model consisted of four submodels: hydrology, soil, vegetation and multi- attribute. Each submodel generated a Wetland Suitability Index (WSI). Those WSI were summed to obtain a general WSI. The suitability model was calibrated using half of the study area. During calibration, the general model was evaluated as well as each individual index. Generally, the model showed a lack of sensitivity to changes. However, the model was slightly modified to improve the delineation of upland wet- lands by increasing the weight of the soil submodel. This model was validated using the second half of the study area. The validation results improved a bit compared to the calibration results; however they remained weak. It was demonstrated that the model does not favor riverine wetlands over upland wetlands, nor large size wetlands. The model ground truth data were evaluated and were suffciently proven to be up to date. Those results indicated that the weakness of the model must come from inac- curacy in the input data. Therefore, the study showed that while existing computing capacity supports remote delineation, spatial accuracy is still insuffcient to perform correct wetland delineation using remote sensing and GIS technologies.

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Hammerle, Roland Johann. "The design of a Web-based distributed Geographic Information System". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0003/MQ46254.pdf.

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29

Shi, Xun, e 施迅. "Integrating case-based reasoning and geographic information system forurban planning". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31221592.

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30

Hepburn, Robert Cameron. "Environmental epidemiology in primary care using a geographic information system". Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268876.

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31

Shrestha, Joseph, e H. David Jeong. "Automated Spatial Visualization of Bid Data Using Geographic Information System". Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/5477.

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32

Regan, John J., Donald F. Post e Roy S. Rauschkolb. "Mapping the Maricopa Agricultural Center Using a Geographic Information System". Arizona-Nevada Academy of Science, 1989. http://hdl.handle.net/10150/296440.

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From the Proceedings of the 1989 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 15, 1989, University of Nevada, Las Vegas, Nevada

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33

Keiper, Timothy A. "Introducing a geographic information system to an elementary classroom : a case study /". free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9737853.

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34

Tesar, Jennifer E. "The Impact of a Geographic Information System on Middle School Students' Geographic Literacy and Historical Empathy". Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1282139171.

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35

Ulaganathan, Manju Narmada. "Building a volunteered geographic information system (VGIS)| A mobile application for disaster management". Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10150587.

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Abstract (sommario):

The explosion of web-based GIS technologies and the opening up of mapping technologies to common citizens in the past decade have resulted in a whole range of VGI communities like OpenStreetMap, Ushahidi and Wikimapia, that are used to assist emergency management operations on a large scale. However, most crowd sourced systems currently being used for disaster recovery have multiple obstacles like accessibility, ease of use, dependency on social media and requirement of special skill sets on the part of the public participants that serve as limitations to the fulfillment of the democratization potential of VGI.

Hence an improved Android mobile application was developed which is much more accessible, usable, reliable without any dependency on social media like Facebook to collect and transmit data, thus not only ensuring participation equality but also universal accessibility to quality and timely geographic information during emergency situations.

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36

Reichenbacher, Tumasch. "Mobile cartography : adaptive visualisation of geographic information on mobile devices /". München : Verlag Dr. Hut, 2004. http://purl.fcla.edu/UF/lib/MobileCartography.pdf.

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37

Tiwari, Prava. "Updating the web-based geographic information system of the Water Resources Institute". CSUSB ScholarWorks, 2008. https://scholarworks.lib.csusb.edu/etd-project/3407.

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The main scope of this project is to rebuild and deploy web applications that will help share historical artifacts related to the Santa Ana watershed. This project is designed to give a consistent user interface and add extra tools to enhance the functionality of existing applications at the Water Resources Institute (WRI) at California State University San Bernardino (CSUSB). The purpose of this project is to migrate all applications to a single server and update the applications using ArcGIS Server 9.2. Also to give a consistent look to the applications and to make them user friendly.

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38

Perrow, Gabriel. "A Mathematical Model for Simplifying Representations of Objects in a Geographic Information System". Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/PerrowGM2003.pdf.

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39

Jia, Tao. "Geospatial Knowledge Discovery using Volunteered Geographic Information : a Complex System Perspective". Doctoral thesis, KTH, Geodesi och geoinformatik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104783.

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Abstract (sommario):

The continuous progression of urbanization has resulted in an increasing number of people living in cities or towns. In parallel, advancements in technologies, such as the Internet, telecommunications, and transportation, have allowed for better connectivity among people. This has engendered drastic changes in urban systems during the recent decades. From a social geographic perspective, the changes in urban systems are primarily characterized by intensive contacts among people and their interactions with the surrounding urban environment, which further leads to subsequent challenging problems such as traffic jams, environmental pollution, urban sprawl, etc. These problems have been reported to be heterogeneous and non-deterministic. Hence, to cope with them, massive amounts of geographic data are required to create new knowledge on urban systems. Due to the thriving of Volunteer Geographic Information (VGI) in recent years, this thesis presents knowledge on urban systems based on extensive VGI datasets from three sources: highway dataset from the OpenStreetMap (OSM) project, photo location dataset from the Flickr website, and GPS tracking datasets from volunteers, taxicabs, and air flights. The knowledge primarily relates to two issues of urban systems: the urban space and the corresponding human dynamics. In accordance, on one hand, urban space acts as a carrier for associated geographic activities and knowledge of it benefits our understanding of current social and economic problems in urban systems. On the other hand, human dynamics reflect human behavior in urban space, which leads to complex mobility or activity patterns. Its investigation allows a derivation of the underlying driving force that is very instructive to urban planning, traffic management, and infectious disease control. Therefore, to fully understand the two issues, this thesis conducts a thorough investigation from multiple aspects. The first issue is investigated from four aspects. First, at the city level, the controversial topic of city size regularity is investigated in terms of natural cities, and the conclusion is that Zipf’s law holds stably for all US cities. Second, at the sub-city level, the size distribution of spatial units within different cities in terms of the clusters formed by street nodes, photo locations, and taxi static points are explored, and the result shows a remarkable scaling property of these spatial units. Third, enlightened by the scaling property of the urban space at the city or sub-city level, this thesis devises a novel tool that can demarcate the cities into three categories: compact cities, normal cities, and sprawling cities. The tool is then applied to cities in both the US and three European countries. In the last, another representation of urban space is taken into account, namely the transportation network. The findings report that the US airport network displays the properties of scale-free, small-world, and disassortative mixing and that the individual natural airports show heterogeneous patterns that are probably subject to geographic constraints and socioeconomic factors. The second issue is examined from four perspectives. First, at the city level, the movement flow contributed by agents using two types of behavior is investigated through an agent-based simulation, and the result conjectures that the human mobility behavior is mainly shaped by the underlying street network. Second, at the country level, this thesis reports that the human travel length by air can be approximated well by an exponential distribution, and subsequent simulations indicate that human mobility behavior is largely constrained by the underlying airport network. Third, at the regional level, the length that humans travel by car is demonstrated to agree well with a power law with exponential cutoff distribution, and subsequent simulation further reproduces this levy flight characteristic. Based on the simulation, human mobility behavior is again revealed to be primarily shaped by the underlying hierarchical spatial structure. Finally, taxicab static points are adopted to explore human activity patterns, which can be characterized as the regularities in space and time, the heterogeneity and predictability in space. From a complex system perspective, this thesis presents the knowledge discovered in urban systems using massive volumes of geographic data. Together with new knowledge from empirical findings, the development of methods, and the design of theoretic models, this thesis also shares the research community with geographic data generated from extensive VGI datasets and the corresponding source codes. Moreover, this study is aligned with a paradigm shift in that it analyzes large-size datasets using high processing power as opposed to analyzing small-size datasets with low processing power.

QC 20121113

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40

Peters, Jeremy. "An evaluation of ambulance service performance using a Geographic Information System". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq30253.pdf.

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41

Han, Kai. "Development of an interoperable Geographic Information System platform for transportation applications". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62747.pdf.

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42

Sasikala, K. R. "Fuzzy reasoning with geographic information system : an aid to decision-making". Thesis, University of Surrey, 1997. http://epubs.surrey.ac.uk/1002/.

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43

Thomas, Abraham. "Modelling urban groundwater recharge and pollution using a geographic information system". Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395330.

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44

Ueng, W. L., e 翁維瓏. "Navigation Geographic Information System". Thesis, 1999. http://ndltd.ncl.edu.tw/handle/93835447306899477904.

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Abstract (sommario):

碩士
國立海洋大學
航運技術研究所
87
Geographic Information System is a computer system used for the acquisition, storage, compilation, processing, analysis and presentation of geographic information. In real world, nearly all conditions are related to space and location. Following the rapid progress of computer technology, geographic spatial information naturally should not be absent in the overall computerization. In this research project, a geographic information system called NAVigation GIS, or NAVGIS, will be developed as a demonstrator of a central navigation information provider and a platform for data exchange and sharing . The information provided in NAVGIS may be static information retrieved from databases, real time weather or sea forcast data or results of composite information analysis. Electronic navigational charts of the inshore waters around Taiwan and Kaohsiung Harbour areas for harbour and harbour approach will be digitized as GIS map files and treated as a vertical database. Besides the chart information, database of accidents and navaids will be integrated (geo-coded). Possible applications of this NAVGIS include general navigation information service, risk warning / vunerable area, marine transport planning, accident database analysis, management of navigational aids database, harbour service and VTS, marine search and rescue, maritime research and education. An Internet server is developed for realizing resource sharing by linking internet technology, it’s called internet GIS, or IGIS. The query and analysis functions of the NAVGIS will be developed for the above applications on GIS.

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45

Chen, Jian Bo, e 陳建伯. "Geographic information system database". Thesis, 1995. http://ndltd.ncl.edu.tw/handle/76049261245425055287.

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46

CHUNG-FENG, CHANG, e 張錦鋒. "A Distributed Geographic Information System". Thesis, 1994. http://ndltd.ncl.edu.tw/handle/89291964595963564364.

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47

Chiu, Tai-Shian, e 邱泰憲. "Application of Geographic Information System". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/03137256689799786705.

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Abstract (sommario):

碩士
國立臺灣大學
生物環境系統工程學系暨研究所
91
The purpose of this study based on the differences of the water demand and the irrigation schedule is discussing：(a) current irrigation schedule (b) rotational irrigation schedule─constant planting rate type (c) rotational irrigation schedule─constant discharge during land preparation type (d) continues irrigation schedule─constant planting rate type (e) continues irrigation schedule─constant discharge during land preparation type in the situation of different depth of water requirement. In this study, a Geographic Information System of the water demand and the irrigation schedule is developed by using Visual Basic and ESRI MapObjects. In different models, the system calculates the discharge of every time scale and the irrigation time of every field. This system provides the information of space and time in the process of irrigation. Moreover, the system also provides the function of spatial inquiry, the inquiry of the subpoena, the time schedule of irrigation every field and the chart of the discharge of every time scale. The calculation of water demand in current irrigation schedule is unable to correspond to the water requirement exactly needed theoretically in the field. By using numerical analysis to correct the planting rate of rotational irrigation schedule- constant discharge during land preparation type and continues irrigation schedule- constant discharge during land preparation type, it maintains the discharge constant during land preparation in the situation of different irrigation demand.

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48

FU, JING-PEI, e 傅景培. "Application of Geographic Information System on the Cadastral Information System". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/dn5z5m.

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碩士
靜宜大學
財務工程學系
107
The purpose of cadastral inventory check is to understand the land use situation in order to promote the effective use of land. In the implementation of the inventory operation, the current practice uses the cadastral map and the orthophoto map to be nested, and then examines the current status of the land according to the county code, section number and land number contained in the map layer. However, the orthophoto image resolution is not high and cannot be updated frequently. Therefore, it is an important application to use the drone to obtain the current image of land use. The purpose of this study is to explore how to apply geographic information systems (GIS), combined with the associated database PostgreSQL and PostGIS to provide an efficient way to conduct cadastral inventory.

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49

Xie, Yan Hua, e 謝炎樺. "Manage irrigation soil information using geographic information system". Thesis, 1995. http://ndltd.ncl.edu.tw/handle/70043746577220830954.

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Abstract (sommario):

碩士
國立臺灣大學
農業工程研究所
83
Soil properties (especially soil moisture indices) are key factors in the management of agricultural production system. Soil information， with its spatially distributed characteristics，can be efficiently managed with the geographic information system (GIS). This study is to cooperate the related soil information into a building block for the GIS of agricultural production system. Soil information is vital for irrigation planning. Soil properties for some specific area are usually needed in the planning process. Three methods are used in this study to get soil information for any arbitrary area： (1) weighted average using the distance form the nearby soil sampling points. (2) interpolation form the soil property contour.and (3) interpolation form the sand/clay percentage contours. The sand/clay percentage are then used for the prediction of soil moisture indices. The study also persents a method for examination of the efficiency and adequacy of the density and distribution of soil sampling points.

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50

Lin, Nung-yao, e 林農堯. "Textual Geographic Information System and Applications". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/935vv3.

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博士
國立臺灣大學
資訊網路與多媒體研究所
106
Most of the existing GIS approaches assume that a specific text is given, and provide its geographical information on a map. Our approach allows a humanist to manipulate the spatial information in texts and render them in historical GIS. Through interactions such as search or filter, the humanist can manipulate the data and their spatial presentation/distribution at her own will, thus providing a much more effective and integrated way to utilize spatial information in humanities research. This research provides a platform for humanists to work with and observe spatial information in embedded in texts. It integrates markup tools, personal text databases and textual geographic information systems (GIS). Through the implementation of a textual markup conversion tool, it can produce structural data such as place name and other tags from textual data. The resulting chart can be manipulated by the user and be used to observe spatial distribution and relevance in the GIS. In order to leverage existing tools, we have developed our system utilizing two of the most popular tools for digital humanities in Sinology: MARKUS, an annotation tool for historical documents, and DocuSky, a personal environment for digital humanities research. On this basis, we have built a textual geographic information system that we call DocuGIS. Humanities scholars can link the marked tags in their own text with spatial information and present them on maps of different periods to observe, filter, analyze and find the spatial context in the texts. At the same time, various resources, such as Chinese historical figures, Chinese historical natural disasters, and Chinese historical climate, can be linked through time and space. In geographic texts, humanities scholars can use keywords search to observe the spatial distribution and shape of eligible conditions to identify potential research problems.

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