AP Human Geography Unit 1 Exam Prep

Understanding and Interpreting Geographic Data

  • Maps: Essential tools for geographers.
    • Analyze and interpret spatial patterns (where things are located).
    • Examples: mountains, highways, people groups, goat yoga studios.

Spatial Patterns

  • Four main types:
    • Absolute and Relative Distance
      • Absolute: Measured in standard units (inches, miles, kilometers); depicted on maps.
      • Relative: Social, cultural, or political differences; not depicted on maps.
        • Example: Two neighborhoods one mile apart (absolute) but with different socioeconomic classes (relative).
    • Absolute and Relative Direction
      • Absolute: North, South, East, West.
      • Relative: Location in relation to another.
        • Example: Filming North of Atlanta (absolute) vs. going "down to Atlanta" (relative).
    • Clustering or Dispersal
      • Describes how phenomena (things that exist) are spread across an area.
      • Clustered: Close together.
      • Dispersed: More space between them.
      • Phenomena: A general term for things that exist
    • Elevation
      • Height of geographic features relative to sea level.
      • Represented by isoline maps.

Map Features

  • Scale: Relates distance on the map to distance in the real world.
    • Represented by:
      • Ratio (e.g., 1:1000 - one inch on the map represents 1000 miles).
      • Bar (a length representing a specific distance).
    • Large Scale Map: Zoomed in, larger details (e.g., large buildings).
    • Small Scale Map: Zoomed out, smaller details, national or global level (e.g., small buildings).
  • Direction: Indicated by a compass rose.
    • Cardinal directions: North, South, East, West.
    • Intermediate directions: Northeast, Southeast, etc.

Types of Maps

  • Reference Maps: Display specific geographic locations.
    • Examples:
      • Road maps (locations of roads).
      • Topographical maps (mountains, valleys, elevation changes).
      • Political maps (boundaries of states/countries).
    • Like a blueprint for construction, defines where things are.
  • Thematic Maps: Display geographic information or themes.
    • Take geographic data or phenomena and depict them spatially.
    • Examples:
      • Choropleth Map: Visualizes data with different colors.
        • Example: Presidential election map (red for Republican, blue for Democrat).
      • Dot Distribution Map: Uses dots to visualize location of data.
        • One-to-one: One dot equals one unit of data.
        • One-to-many: One dot represents a group.
          • Example: Map from the 2010 census where one dot equals 1,000 people.
      • Graduated Symbol Map: Symbols are sized in proportion to the data.
        • Example: Population map with small circles representing small populations and vice versa.
      • Isoline Map: Uses lines to depict data; closer lines indicate rapid change.
        • Example: Topographic map showing elevation changes.
      • Cartogram: Distorts geographic shapes to display differences in data.
        • Example: Population cartogram making India larger than Russia.

Map Projections and Distortions

  • Every map is distorted in some way due to representing a 3D sphere on a 2D plane.
  • The choice of projection depends on the map's purpose.
  • Common Projections:
    • Mercator Projection: True direction, latitude and longitude intersect at right angles, but distorts land masses further from the equator.
      • Created during the European age of exploration, useful for navigation.
      • Criticized for being Eurocentric.
    • Peter's Projection: Depicts continents according to true landmass size, but distorts shapes.
      • Challenges the Eurocentric Mercator projection.
    • Polar Projection: Views the world from the North or South Pole; directions are true, but distortion increases at the edges.
    • Robinson Projection: Compromise that distributes distortion equally across all parts of the map.

Gathering Geographic Data

  • Types of Data:
    • Quantitative Data: Numbers-based (e.g., number of houses on a street).
      • Data collection relies on counting.
    • Qualitative Data: Descriptive and language-based (e.g., community satisfaction).
      • Data collection relies on descriptive accounts.
  • Who Gathers Data:
    • Individuals: Researchers, community advocates.
    • Organizations: U.S. Census Bureau.
  • How Data is Gathered:
    • Geospatial Technologies:
      • Anything that uses hardware or software to examine and measure geographical features.
      • GPS (Global Positioning System): Uses satellites to determine absolute location.
        • Example: Using phone to get directions.
        • The U.S. Air Force maintains 24 satellites that orbit the Earth.
      • GIS (Geographic Information System): Software that manipulates geospatial data for research and problem-solving.
        • Difference from GPS: GPS finds locations, GIS finds answers.
      • Remote Sensing: Gathers information through satellite imagery.
        • Used in nightlight images and aerial photography.
    • Written Accounts:
      • Field Observations: Researchers visit a location and make written observations.
        • Involves writing accounts, taking photos, and interviewing residents.
      • Media Reports and Travel Narratives: Show details of people and places.
        • Example: Lewis and Clark's journals after exploring the Louisiana Purchase.
  • Data drives decision making.
    • Average people: uses maps for travel.
    • Businesses and Organizations: chooses locations for new stores.
    • Governments: federal governments collect census data.
      • Affects how many representatives are apportioned to that state in the House of Representatives.
      • Affects budetary effects on decision making.
      • State and local governments make decisions about urban planning.
      • Satellite imagery keeps track of wildfires providing information about evacuation.

Geographic Concepts

  • Tools to think geographically:
    • Absolute and Relative Location
      • Absolute: Precise coordinates (latitude and longitude).
        • Latitude: Horizontal lines, measure North-South, parallel to the equator.
        • Longitude: Vertical lines, measure East-West, parallel to the Prime Meridian.
      • Relative: Describing one place in reference to another (distance, time).
    • Space and Place
      • Space: Physical characteristics, measured mathematically (e.g., distance, area).
      • Place: Meaning people give to locations, not mathematically measured (e.g., memories associated with a home).
    • Flows
      • Patterns of spatial interaction between locations (e.g., roads facilitating movement).
      • Influenced by the tracks of connection.
    • Distance Decay
      • The further apart two things are, the less connected they are.
    • Time-Space Compression
      • Decreased distance between places measured by time or cost of travel.
      • Example: Increased globalization and ease of travel.
      • Physical distance remains the same.
    • Patterns.
      • How phenomena are arranged on the landscape.
        • Random: No order (e.g., internet service providers).
        • Linear: Arranged in a straight line (e.g., neighborhoods along a road).
        • Dispersed: Scattered throughout a large space (e.g., farms in a rural area).

Human Environmental Interaction

  • Study of how humans interact with their environment.
    • Use of Natural Resources
      • Renewable Resources: Unlimited measure (e.g., sun, SAS).
      • Nonrenewable Resources: Limited measure (e.g., oil).
    • Sustainability
      • How humans use nonrenewable resources and preserve them for future use.
      • Concerned with pollution and environmental impact.
      • Geographers make recommendations how to minimize that impact.
      • Climate Change: warming the planet causing disastrous consequences like polar ice caps melting and sea levels rising.
    • Land Use
      • How humans use and modify the land.
      • Built Environment: Everything humans have built (roads, buildings) which geographers refer to as the built environment.
      • Cultural Landscape: How the built environment reflect the culture and values of the people who built it.

Frameworks of Thought

  • Theories that help think about human-environment interactions:
    • Environmental Determinism: Physical environment determines how a people's culture developed (environment determines culture).
      • Justified European imperialism.
    • Possibilism: Humans are the driving force in shaping culture; environment offers possibilities.
      • Those possibilities change with the level of technological advancement present in a culture.

Scales of Analysis

  • Drawing conclusions based on different sizes of datasets.
    • Global: Analyzing data at the global level.
      • Increasingly important due to globalization.
      • Example: Studying the effects of pollution.
    • Regional: Studying large regions and drawing comparisons.
      • Example: Comparing life expectancy in Sub-Saharan Africa and North America.
    • National: Studying phenomena in a particular country.
      • Example: Comparing median household income in Germany and the Czech Republic.
    • Local: Studying phenomena at the state, city, or neighborhood level.
      • Example: Studying graduation rates in different neighborhoods.
  • Important points:
    • The further you zoom in, the larger the scale and vice versa.
    • Change the scale of analysis to see variations in patterns and processes.

Regions

  • A geographical unit that shares a unifying principle.
  • Types of Regions:
    • Formal Region: Also called uniform or homogenous region.
      • Linked by common traits (language, religion, economic prosperity).
      • The geographer defines the region based on the shared traits.
    • Functional Region: Also called nodal region.
      • Organized around a central node and its function.
        • Example: Pizza Delivery Area, City
      • One entity serves as the node or the center point of the region, and this center point defines the activity in the rest of the region.
    • Perceptual Region: Also known as Vernacular Region
      • Defined by people's shared beliefs and feelings.
        • Example: The American South
      • Borders are vague.
  • Borders can be transitional and contested.
    • Contested Boundaries: Region intersection of Pakistan, India, China.