Lecture 9- 2.19.docx - Topographic Maps o Topographic maps are detailed accurate graphic representations of features that appear on the Earth\u2019s

Lecture 9- 2.19.docx - Topographic Maps o Topographic maps...

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Topographic Maps o Topographic maps are detailed, accurate graphic representations of features that appear on the Earth’s surface Map Definition o Maps are graphic representations of the cultural and physical environment and the output from a GIS that shows geographic information using well-established cartographic tools o This definition includes mental maps. However, here the map definition assumes that the map is physical object that can be touched Map, Cartography, and GIS o Mapping of Mapmaking : Refers to the production of a tangible map and is defined as the aggregate of technical processes including data collection, cartographic design and construction, and reproduction. o Cartography : Concerns the art, science, and technology of making maps, together with their study as scientific documents and works of art, including maps, plans, charts, 3-D models and globes representing the Earth or any celestial body at any scale (International Cartographic Association). In addition to mapmaking, this definition includes the studies of maps. o Geographic Information Systems (GIS) : defined as a computer-based system designed to collect, store, analyze, and display spatially georeferenced data and their attributes. The key component is its ability to analyze spatial data. Maps are the major output of GIS. Contribution of GIS in mapmaking and cartography o GIS has fundamentally changed cartography and they way in which we create, use, and think about maps o GIS free map-makers from many of the constraints inherent in traditional paper mapping o GIS is a flexible medium for production of maps A paper map is fixed and GIS allows mapping to be viewed at different scales
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