By Ian Heywood, Sarah Cornelius, Steve Carver
This article offers a transparent creation to the area of Geographical details platforms and explains how they are truly used, throughout quite a few disciplines and inside quite a number industries..Revision questions - permits scholars to check their figuring out 'Further examine - analyzing' bargains resources of extra info if you desire to discover a subject matter extra 'Further examine - actions' deals a variety of sensible actions for the scholar to adopt to place into perform the thoughts they've got studied significant other site comprises simulated spreadsheet information for college kids' perform, in addition to multiple-choice questions, revision questions and weblinks for additional research and lecturer assets
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Additional info for An Introduction to Geographical Information Systems
For example, Burrough (1986) suggests that GIS have three main elements: ‘computer hardware, application software modules, and a proper organizational context’. Others, such as Maguire (1989), stress that data are the most important part of GIS. QXD 20/3/06 8:42 am Page 19 Components of a GIS tools) will function as a GIS in isolation, so all might be considered of equal importance. However, it is perhaps the nature of the data used, and the attention given to the processing and interpretation of these data, that should lie at the centre of any definition of GIS.
Overlay Examine output OK? QXD 8 20/3/06 8:42 am Page 8 Chapter 1 What is GIS? 7 Radioactive waste case study: geology, population, transport and conservation criteria maps. (Sources: (a) British Geological Survey. uk). 8 Radioactive waste case study (a and b) results from different siting scenarios result was a map showing the locations where all the specified siting criteria were satisfied and, thus, a number of locations suitable for the siting of a nuclear waste repository. The advantage of using the GIS to perform this task was that the siting criteria could be altered and the procedure repeated with relative ease.
Similar systems are also now available online. The house hunting example shows how GIS can be used to link databases with similar types of data. This improves the speed and efficiency with which an appropriate location can be found. In this respect, it is a similar application to the NIREX case study discussed earlier. However, it differs from the NIREX example in that a large part of the search process may be carried out using the attributes associated with a spatial feature. In the case of the house hunting example, these may be the number of bedrooms a property has or its price.