Task Everything happens somewhere. Therefore to understand - and manage - our environment we require information about that environment to be related to place. Your first task is to identify some methods to describe position. Examine the following examples of georeferencing for UK data.
Introduction to Coordinate Systems
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Source: Ordnance Survey. Guide to coordinate systems: Part 1. <http://www. ordnancesurvey.co.uk/oswebsite/gps/information/coordinatesystemsinfo /guidecontents/guide1.html> URL last accessed 21-12-2006.
What is Position?
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Source: Ordnance Survey. Guide to coordinate systems: Part 3. <http://www. ordnancesurvey.co.uk/oswebsite/gps/information/coordinatesystemsinfo /guidecontents/guide3.html> URL last accessed 21-12-2006.
British Place Names
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Source: Association of British Counties. Gazatteer of British place names. <http://www.gazetteer.co.uk/> URL last accessed 21-12-2006.
UK Postcodes
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Source: unknown.
Geographic Referencing
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Source: Office for National Statistics. Beginners guide to geographic referencing. <http://www.statistics.gov.uk/geography/geog_ref.asp> URL last accessed 21-12-2006.
UK Geography
[ URL ]
Source: Office for National Statistics. Beginners guide to UK geography. <http://www.statistics.gov.uk/geography/beginners_guide.asp> URL last accessed 21-12-2006.
Task Your task is to identify methods for describing the position of a house.
e-Tutorial: Where do you live?
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Task Read this introduction to georeferencing systems by Longley et al. (2001). Your tasks are to outline the requirements that any effective referencing system must satisfy and then to distinguish between systems that we use in everyday human experience, including placenames, and street addresses, and those that involve more accurate methods that form the basis of geodesy and surveying. Lastly, how does one change between referencing systems? You should revisit and add to the list you compiled in the e-tutorial.
Spatial Referencing Systems
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Source: Longley PA, Goodchild MF, Maguire DJ and Rhind DW, 2001. Ch 4.1 - 4.6 and 4.8 in Geographic Information Systems and Science. John Wiley & Sons, Ltd. p. 80 - 86 and p. 94 - 95.