GEOG187 Study Guide - Quiz Guide: Volunteered Geographic Information, Government Database, Microsoft Research Maps
10 Oct 2016
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Advantages: more efficient than verbal descriptions of spatial relationships/patterns, sources of data, solve complex problems (e. g. development constraints) Represent knowledge of: spatial organization of our environment, characteristics of different locations/regions. Acquire information through: direct/indirect experience, extra-perception. Incomplete: selective retention of information, more accurate for familiar areas. Map reading (basic) identify symbolization: create a mental image. Map analysis (intermediate) identify interesting spatial pattern: determine a direction/path. Map interpretation (advanced) relate map information to knowledge of region represented: explain spatial patterns. Government databases (nrcan): census data (statscan, official basemaps (roads, physical features, etc, federal/provincial or state/municipal sources. Incremental improvement of (cid:858)ground truthed(cid:859) or surveyed data + aerial and satellite imagery: most accurate source of data but may not be the most current. Private-sector geospatial databases: navteq (digital maps, traffic, terraserver (aerial and satellite imagery, google, microsoft, collect their own, many smaller, specialized data providers for unique datasets, usually licensed by other developers.
