This paper presents an overview of some of the research performed at the Bureau of Reclamation, Mid-Pacific GIS Service Center over the past two years related to the application of ArcObjects technology involving hydrodynamic modeling. Topics include finite element mesh generation and the representation of mesh components as a geometric network, construction of 3D fence diagrams in applications...

Digital Terrain Modeling, the Triangulated Irregular Network (TIN) is a representation of a surface derived from irregularly spaced sample points and break line features. Paper deals with the basic concept of Delauney’s triangulation method with its practical approach in ArcGIS. The next section describes the process to convert mass points to TIN model and explores some of the basics of TIN Mod...

This presentation describes the challenges and lessons learned from teaching a totally online, semester-long GIS course. The course was the first offering in a planned online Masters in GIScience degree. The online course is compared to a similar on-campus course in several areas, including methods of content delivery, assessment of student learning, and lab exercises using ArcGIS. The lessons ...

The Murray-Darling Basin Authority (MDBA) is a Commonwealth agency responsible for the sustainable management of water resources in the Murray-Darling Basin. The Authority has identified the need for web mapping infrastructure to provide online access to the Authority’s spatial information via discovery, access and publishing tools. In line with the requirement to harmonise the Authority’s onli...

Visualization of attribute uncertainty is often necessary for a successful data analysis. However, visualization tools for uncertainty are barely available in a GIS environment. This paper aims to propose a framework for visualization methods to represent attribute uncertainty and to prototype an implementation of these methods in a standard GIS environment. These tools that are implemented usi...

The presented study discusses the importance of GIS in assessing fire and explosion modelling involved major accident hazards. simulation toxic dispersions atmosphere is especially dangerous for densely inhabited areas, or close to sensitive environment, which are called target systems. Therefore, mathematical-physical predictions from hazard programs such as Areal Locations Hazardous Atmospher...

This paper describes how geographic information system (GIS), remote sensing (RS) and Global Positioning System (GPS) technologies were used to plan the collection of entomological baseline data for a tsetse and trypanosomiasis (T&T) elimination project in the Mouhoun river basin in Burkina Faso. Historical data were collated as the background for data analysis. These data were used to define t...

In our previous research, we compared the actual route recorded by a GPS device “PhotoTrackr” and the optimal vehicle route derived by using ArcGIS Network Analyst tool. VRP is the fundamental problem in the research fields of transportation, we focus on variations of CVRPTW (Capacitated VRP with Time Windows). Various types of VRP are studied to determine the optimal route under various constr...