thinking geographically: nature and perspectives
DESCRIPTION
THINKING GEOGRAPHICALLY: NATURE AND PERSPECTIVES. Human Geography. Physical Geography. Five themes of Geography 1. Location (absolute and relative). Movement (ideas, people, goods) Regions – what do areas have kin common. Place – what is unique about a location - PowerPoint PPT PresentationTRANSCRIPT
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THINKING GEOGRAPHICALLY: NATURE AND PERSPECTIVES
Human Geography
Physical Geography
Five themes of Geography1. Location (absolute and relative)2. Movement (ideas, people, goods)3. Regions – what do areas have kin common4. Place – what is unique about a
location5. Human Environment Interaction
a. Modify b. adapt
Famous Geographers: Erastosthones – Father of Geography – circumference of the Earth
Ptolmey: Compiled first Atlas “ Guide to Geography”. It was Ptolmey’s incorrect map that Columbus used to determine he could sail around the world.
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Location:
Site: physical character of a place
Situation: Relative location – location in relation to other places.
Longitude, latitude ----meridians, parallels
Prime Meridian, International Dateline
Greenwich Mean Time
Time Zones (degrees?)
Country with no time zones?
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MAPS AND MAP PROJECTIONS:
All maps have distortion.The type of projection is determined by the projection.
The Mercator projection distorts shapes around the poles. Perfect for ship navigation.
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A Robinson projection distorts all features a little but is one with as little distortion as can be expected.
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A Peter’s projection “spreads “ countries near the equator but squashes them near the poles.
An azimuthal map shows the earth from a particular point. Doesn’t show all of the planet.
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Map Scale
Large scale map1” = 5 miles. Would be used on a local map.
Small scale map
1” = 500 miles. Would be used on a larger map.
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Chloropleth Maps
Cartogram
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Dot Map
Isoline map
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Geographic Information Systems (GIS)
Satellite imaging takes photos of “layers” of the surface. These can be separated and studied for a particular purpose.
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Scale can also be used to identify the importance of an occurance.
If 25 people die in a flood in Burkina Faso, the scale of the tragedy is important there, but not on a world scale.
If 250,000 people die in a Tsunami in the Indian Ocean, the scale is important on a worldwide scale.
Think ZOOM
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REGIONS
Formal States, counties, countries
Functional(nodal)
The “range” of a central location (node.)
The coverage of a radio station, newspaper
Perceptual(Vernacular)
A region that people know exists, although there are no formal boundaries.
The South, East Texas, Cy-Fair
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DIFFUSION
EXPANSION DIFFUSION
RELOCATION DIFFUSIONSpread of an idea from the physical movement of people.
Hierarchal Diffusion: spread of an idea from persons or nodes of authority to other persons or places. (top down diffusion)
Contagious Diffusion: The rapid and widespread diffusion of a characteristic throughout a population.
Stimulus diffusion: The spread of a principle even though the characteristic itself does not diffuse. Apple vs Microsoft
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GENERAL INFORMATION
Space-time compression
The reduction in time it takes something to diffuse to a distant place. (technology)
Toponyms: Place namesSan Antonio, Red Bluff Mountain, Houston Oaks Golf Club
Sequent occupance
The change over time as to what is “occupying” a particular space.
Prairie to sod hut to house to apartments to vacant lot
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Environmental Determinism: the environment determines the relative success of failure of a group of people. The physical environment causes and restricts human development.
Distance decay: the diminishing importance and eventual disappearance of a phenomena the further away it is from its origin.
Possiblism: the environment may set limits on development, but people have the ability to overcome their environments.
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Density
Pattern
Concentration-Irregular
Arithmetic
Concentration - regular
dispersed
Linear or clustered?
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