GEOG372 Chapter Notes - Chapter 1: Geographic Information System, Information System, Geomorphology
29 Sep 2016
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Document Summary
Scale , or level of geographic detail. Time scale , ranging in human terms from the dynastic to the diurnal, but very much longer w respect to understanding geological or geomorphological change. Where to cut trees in next year"s forest harvesting plan. How to control electricity inputs onto grids that experience daily surges. Adjective geographic refers to earth"s surface and near surface, at scales from the architectural to the global. Spatial refers to any space, not only the space of the earth"s surface. Geospatial - implying a subset of spatial applied specifically to the earth"s surface and near surface. Although subtle distinctions between terms geographic(al), spatial, and geospatial, for many practical purposes they can be used interchangeably. Information systems make it easier to organize and store, access and retrieve, manipulate and synthesize, and apply to the solution of problems. Data is the plural form of noun datum. Info normally expensive to collect, but once digilizalized- cheap to reproduce and distribute.
