how geographers look at the world
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How Geographers look at the world. Chapter 1. Chapter 1, Section 1. Globes and Maps: Projections Determining Location: Latitude Longitude Global Grid (absolute location) Hemispheres Reading a Map Physical Maps Political Maps Thematic Maps. Globes and Maps. - PowerPoint PPT PresentationTRANSCRIPT
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HOW GEOGRAPHERS LOOK AT THE WORLD
Chapter 1
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CHAPTER 1, SECTION 1
Globes and Maps: Projections
Determining Location: Latitude Longitude Global Grid (absolute location) Hemispheres
Reading a Map Physical Maps Political Maps Thematic Maps
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GLOBES AND MAPS
The Earth is a 3-Dimensional sphere. We also call this a globe.
A map is 2-Dimensional. A map allows us to make sense of a 3-D globe on a 2-D piece of paper.
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LONGITUDE AND LATITUDE
We use longitude and latitude to determine location
Together they make up the grid system. A grid is a box (square) on a map.
For latitude, think “flat” lines The Equator is a line of latitude. It is zero degrees latitude.
For longitude, think “long” lines The Prime Meridian is a line of longitude. It is zero degrees longitude.
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GREAT CIRCLE ROUTES
Going from Miami to London
A straight line on a map is not the fastest route.
A straight line on a globe is the fastest route.
When you draw a straight line on a globe, it appears to bend on a map
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PROJECTIONS: PLANAR PROJECTION
When the Earth just looks like a circle
Most accurate at the center. The further out we look, the more elongated things get
Think “Plane” (a flat surface)
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PROJECTIONS: CYLINDRICAL PROJECTION
When the globe is turned into a rectangle
Most accurate at the equator, and least accurate at the poles
Antarctica is not that big
Think “Cylinder”
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PROJECTIONS: CONIC PROJECTION
Similar to a planar projection
More accurate when indicating distances and directions
Think “Cone”
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OTHER PROJECTIONS
Winkel Tripel Projection
Robinson Projection
Goode’s Projections
Mercator Projection
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HEMISPHERES
The Earth is divided into four hemispheres:Northern HemisphereSouthern HemisphereEastern HemisphereWestern Hemisphere
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THE FOUR HEMISPHERES
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READING A MAP
Compass Rose
Cardinal Directions
Intermediate Directions
Scale Bar
Key
Boundary Lines
Cities/Capitals
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SMALL-SCALE MAPS, LARGE-SCALE MAPS
Small-Scale Map Large-Scale Map
In a small-scale map, the Eiffel Tower looks small. In a large-scale map, the Eiffel Tower looks large
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MAPS
There are three main types of maps:Physical Maps: which shows Earth’s physical features (lakes, mountains, etc.)
Political Maps: which shows boundaries, cities, and states (helps with politics)
Thematic Maps: which is basically every other type of map. These maps have themes, and can help illustrate anything.
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PHYSICAL MAP
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POLITICAL MAP
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THEMATIC MAP
Qualitative Map: symbols and colors
Flow-line Map: illustrate movement
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CHAPTER 1, SECTION 2
Why is it important to understand geography? Elements of Geography Absolute Location and Relative Location Place and Regions Physical Systems and Human Systems (pretty much what this class is about)
Research Methods The Bigger Picture of Geography Geography as a Career
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WHY IS IT IMPORTANT TO UNDERSTAND GEOGRAPHY?
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ELEMENTS OF GEOGRAPHY
Absolute Location: Exactly where something is located. Global Address
Relative Location: Where something is compared to where something else is.
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PLACE AND REGIONS
Place: A particular space
Regions: Areas with similar characteristics Formal Region: A region that has a common characteristic throughout
The Great Plains Remembering: Collegiate Greeks want to throw a “Formal” in The
Great Plains Functional Region: A region that has a central place, with
surroundings linked to it Pretty much any city in the world (Metropolis and the suburbs) Remembering: Washington, D.C. is dys”function”al
Perceptual Region: A region based on perception (ideas and feelings) The Bible Belt What is your “perception” of the South?
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PHYSICAL SYSTEMS AND HUMAN SYSTEMS
Physical Geography: Earth’s physical features What does the Earth look like here? An ecosystem is a community of plants and animals that depend on one
another for survival
Human Geography: Earth’s cultural features What do the people do here? What do they eat? Movement: The spread of people, goods, and ideas
Human-environment interaction: exactly what the name suggests.
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RESEARCH METHODS
Direct Observation: look around
Mapping: How do you illustrate the land on paper? You make a map. Designing and making maps = cartography
Interviewing: asking people questions about what they know. You get dropped off in the middle of Africa. You don’t really know where you are, but there
are a lot of people. What do you do? Bizarre Foods
Analyzing Statistics: the easiest way for us to learn about another place Rainfall, average temperature, etc.
Using Technology: Combining statistics with technology paints an even better picture Geographic Information Systems (GIS): computer tools that process
and organize data and satellite images with other types of information gathered by geographers and scientists
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GEOGRAPHY: THE BIGGER PICTURE
Geography has an effect on:
Past Environments: What did Florida look like 1 million years ago?
Politics: John Boehner’s opinion on global warming
Society and Culture: A society and its culture is largelybased on its surroundings
Economies: How are locations chosen for economic activities?