1.0: unit one review - thinking geographically
Overall Unit Key Themes
- Introduction to Maps
- Geographic Data
- The Power of Geographic Data
- Spatial Concepts
- Human-Environmental Interaction
- Scales of Analysis
- Regional Analysis
Topic 1.1: Introduction to Maps
terms to know
1. Reference map 2. Thematic map 3. Absolute distance 4. Absolute direction 5. Relative distance 6. Relative direction 7. Clustering 8. Dispersal 9. Elevation
- Map projection
THEMATIC MAPS – depict characteristics of places
- categorical maps * depict areas that are different in kind * use several distinct colors to show different categories
- choropleth maps * depict areas that are different in amount * use shades of similar colors to show different values * eg. population density, literacy rates
spatial patterns represented on maps
- Absolute vs. Relative (Distance and Direction) * Absolute: measured in standard metric * Relative: measured in relation to something else
- spatial patterns * Clustering * Dispersal * Elevation
Projection
- Distortions possible:
- Shapes of areas
- Distance between 2 points may become increased or decreased
- Relative size of areas may be altered
- Direction from one place to another
- Equal area projections:
- relative sizes are same
- distorts shapes near poles
Topic 1.2: Geographic Data
terms to know
- Geographic information systems (GIS)
- Satellite navigation systems
- Remote sensing
- Where spatial information can come from
1. field observations 2. media reports 3. travel narratives 4. policy documents 5. personal interviews 6. landscape analysis 7. photographic interpretation
terms and sources
- Geographic Information Systems (GIS)
- Remote Sensing- data about the Earth’s surface from a satellite or other long-distance methods
- GPS- (global positioning system) * Accurately determines the precise position of something on Earth * 24 satellites in orbits * tracking stations to control satellites * receivers compute position, velocity, time
where do we get these numbers?
- demography- the study of the characteristics of human populations
- census- periodic count of population * developed by Romans for tax collection * in the U.S., every 10 years since 1790 * used to apportion seats in House of Representatives
- *__geodemographic analysis: __*assessing the location and composition of particular populations- marketing research using GIS
Topic 1.4: Spatial Concepts
terms to know
- Absolute location
- Relative location
- Space - implies the extent of a area
- Place - refers to the attributes and values we associate with a location
- Flows
- Distance decay
- Time-space compression
- Pattern
Topic 1.5: Human-Environmental Interaction
terms to know
- Sustainability
- Natural resources
1. What will people do with those natural resources? 2. How do we maintain them?
- Land use
1. How are people using the land around them? Why this method?
- How humans and the environment interact:
1. Environmental determinism 2. Possibilism
Topic 1.6: Scales of Analysis
terms to know
- Global
- Regional
- National
- Local
themes and ideas
- be able to describe and explain patterns and processes at different scales reveal variations in, and different interpretations of data
Topic 1.7: Regional Analysis
terms to know
- Formal region
- Functional region
- Perceptual/vernacular region
defining regions
- Regions are defined on the basis of one or more unifying characteristics or on patterns of activity
- Boundaries are transitional
- Applied at various scales
Geographic Investigation Process:
- What do you see? Where? When?
- Patterns?
- Why there?
- So what?
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