today: projections and cartographers first 10 minutes: turn in your physical features of the usa map...
TRANSCRIPT
Today:Projections and Cartographers
First 10 Minutes: Turn in your Physical Features of the USA mapReminder! News Quiz Tomorrow.
Geographic definitions:
1. Map-a representation of a part of our planet2. Projections- displaying a round object on a flat
surface. Since the world isn’t flat, maps are hard to make accuratly. They are made by..
3. Cartographers-map makers4. Atlas=book of maps5. Globe -a model of the earth
You can’t completely flatten something without distortion!
Map projections
South America in SIX Different projections
Which is the “real” one? Answer: They all are.
Geographic tools
• 1. Aerial photos• 2. Satellite photos• 3. Information graphics• 4. GIS (Geographic information Systems)• 5. Maps – Physical, road, political, climate, topograhical,
resource, economic,
Famous Geographers
• GerardusMercator
• What seems to be the problem though?
Distortion at the poles
Mercator projection makes things look bigger than they really are
Arno Peters Projection
Supported by the UNESCO and used in British schools
Problems?
Hobo Dyer Projection
Another type:Sinusoidal
Mollweide projectio
Eckhert II Projection
Ecckhart 4 Equal areas?
Goode
Helpix projection
Polyconic
Make an eponymous(named after yourself) projection!
• Everyone in your group try! Don’t be afraid to make a mistake.
• Make a (your last name here)Projection of the round object I put on your table.
• Use grid lines! Remember, a projection is a representation. 3 d to 2 d.
Exit Ticket