Surface Water Interaction Modelling Using Visual MODFLOW and GIS

PHYLARESModeling Tools / ch.5__________________________________________________________________________________________27Chapter 5Modeling toolsIn this chapter, the tools used for modeling of the study area are described. The first part dealswith ArcView GIS and in the second part, the three-dimensional groundwater modelingenvironment of waterloo hydrogeologic Inc, Visual MODFLOW is discussed.5.1 ArcView GIS5.1.1 IntroductionGeographical Information System (GIS) is a tool used to gather, transform, manipulate, analyze,and produce information related to the surface of the Earth, i.e. geographically referenced data.GIS is an information system where the database consists of observations on spatially distributedfeatures, activities or events which are definable in space. ArcView is a GIS software that allowscreating maps, and adding information. Using Arc View’s visualization tools, records fromexisting databases can be accessed and displayed on maps. ArcView GIS 3.2 is the revisedversion of 3.1.5.1.2 Types of data used in ArcView GISArcView GIS comes with a full set of ready-to-use general purpose data. For many applications,the data are used to create maps or are used as a base where data can be added.5.1.3 Geographical dataData that describes any part of the earth’s surface or the features found on it can be calledgeographic data. Geographic data from a variety of sources are used in ArcView. This includes______________________________________________________________________________________Groundwater – Surface water interaction modeling using visual MODFLOW and GIS