Interactive geovisualization of activity-travel patterns using three-dimensional geographical information systems: a methodological exploration with a large data set

2000 ◽  
Vol 8 (1-6) ◽  
pp. 185-203 ◽  
Author(s):  
Mei-Po Kwan
Author(s):  
Hind Fadhil Ibrahim Al-Jubouri ◽  
Firas S Raheem ◽  
Prof Dr Osama K Abdulridah ◽  
Prof Dr Ali A Kazem

Geographical information systems are the latest applied computer technologies that contribute to supporting contemporary geographical studies through the possibility of working on preparing a database of geographical phenomena and modeling them in a digital form by providing automated methods and a set of systems and programs for managing and processing data with spatial and non-spatial reference, which is one of the important functions in geographic information systems And the base on which it depends to reach the optimal decisions to reveal the spatial relationships and correlations between geographical phenomena and with high efficiency, to become the contemporary method in the method of processing and spatial analysis of geographical information instead of the old traditional methods of geographical analysis, and the system also allowed the geographical area to enter into the era of modern technologies to evaluate phenomena. Geographical forecasting. The research materials and methods are determined by adopting topographical and geological maps, land-sat satellite visuals, and DEM data to form the search database, and based on the GIS program (Arc Map 9.3) and the (Global Mepper 11) program and the extensions of the (Arc Map 9.3) program, which are (Spatial Analysis) And the three-dimensional analysis (3D analysis), and the outputs are the final process through which the results of the research emerge. These outputs show the type of information that will be processed and presented in the form of three-dimensional maps and shapes, studying the most important causes of geomorphological risks for the study area, and developing solutions and treatments through the conclusions and recommendations of the research.


Aviation ◽  
2005 ◽  
Vol 9 (3) ◽  
pp. 36-42 ◽  
Author(s):  
Albertas Pincevičius ◽  
Romualdas Baušys ◽  
Pranas Jankauskas

The algorithm of the stochastic model of combat is given in article. Random functions describing the basic processes of combat (movement of military personnel, detection of the enemy, firing and its results, etc.) are recorded. Corresponding mathematical expressions and numerical evaluations are given. Application of Geographical Information Systems (GIS) technologies and three‐dimensional map in planning battle tactics are discussed.


Aviation ◽  
2006 ◽  
Vol 10 (3) ◽  
pp. 30-36 ◽  
Author(s):  
Albertas Pincevičius ◽  
Romualdas Baušys ◽  
Pranas Jankauskas

An infantry attack over a specific terrain is modeled. A stochastic method described in our previous study is used. In this model, the position of each soldier during the attack is approximately defined by a square [10 × 10 m] on the battlefield. Making use of the possibilities inherent in a three‐dimensional digital map, a visibility matrix is made up, i. e. the indication whether the enemy sees the soldier in a specific case is given.


1997 ◽  
Vol 28 (4-5) ◽  
pp. 329-338 ◽  
Author(s):  
T. Gumbricht ◽  
R. Thunvik

Geographical Information Systems provide a powerful tool for creating three-dimensional (3D) datasets for sophisticated hydrogeological models. The article describes a GIS with an expert system interface developed for generating 3D hydrogeological frameworks. The system integrates 2D images of elevation and geology and vertical profile data. Application of the expert GIS to a complex aquifer in South Eastern Sweden is described.


Author(s):  
F. Schokking ◽  
B. Hoogendoorn

AbstractEngineering geological thematic maps for the prediction of settlement in Quaternary near surface sediments, resulting from hydrological changes, were compiled to be used in the regional groundwater planning for the Provinces of Gelderland and Friesland in the Netherlands.An existing computer program “ZETTING” used for settlement calculations for civil engineering purposes, was adapted for the processing of large data sets. The compilation of the settlement maps using Geographical Information Systems in the Geological Survey of The Netherlands and in the Departments of Water and Environment of the two provinces is described.For the map for the Province of Gelderland digitized type-profile map information and geotechnical properties of sub-regions were combined with hydrological data to calculate settlement and hydrodynamic period.A translation was made of borehole data into geotechnical properties, and hydrological data joined to the resulting data set for the calculation of the settlement map for the Province of Friesland.For both provinces a set of grid maps were compiled. Aspects of the computer aided compilation of the maps, such as data handling, choice of grid and grid transfers, computer calculations and map accuracy are discussed.


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