Week 1 & 2 Notes
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This 1 page Class Notes was uploaded by Katie Lebow on Friday September 9, 2016. The Class Notes belongs to GIS3015 at Florida State University taught by Gregory Burris in Summer 2016. Since its upload, it has received 64 views.
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Date Created: 09/09/16
Introduction to Map Analysis/Understanding: • Is the map "clustered?" : Depends on the size of the frame; frame sizes areVERY easy to manipulate, thus making studies easy to change for personal gain (i.e. "Adjusting" the numbers to represent what a specific company/person wants to prove) • Mercader Projections: Distortion occurs because of the flattening of the Earth (a sphere) to have a 2- dimensional picture (For example: Mexico and Greenland are approximately the same size by land area, despite the visual representation on most maps) • Declination Diagrams: A way to determine which "North" is being used in a map (Magnetic North, Grid North, True North) * Compass North (Magnetic North) is in a different direction based on location * Cell phone/GPS North (Grid North) is completely different from Magnetic North • Vocabulary to Know: Spatial: The way that objects/areas/topographic elements relate to one another in a map (how far from each other they are, if they're near water, etc.) ‣ Spatial Data: The digital representation of topography ‣ Spatial Units: The organizational representations used in map making to make them easier to read (countries, states, counties, etc.) Features: Specific earth objects/land uses/land coverings in maps, such as buildings, towns, rivers, trees, etc. Distance: Can be measured in length (such as miles or kilometers) or in time (such as hours) Direction: Demonstrated via compass points (N, S, E, W), radians (. ), degrees (0-360) Cartography: The science of map making (regardless of map format or type) GIS: Geographic Information Systems: Digital systems used to relate spatial data in an easy to understand way (using colors, legends, borders, etc.)
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