Map Projections.

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Presentation transcript:

Map Projections

All flat maps have some distortion in their representation of: Distance Shape Area Or direction.

Equal-area (or equivalent) projections: maps that maintain area but distort other properties. Conformal (or orthomorphic) projections: maps that maintain shape but distort other properties (it is impossible to have a projection that is both conformal and equal area). Azimuthal projections: maps that maintain direction but distort other properties. Equidistant projections: maps that maintain distance but distort other properties. Types of Projections

Mercator Projection

Cylindrical

Planar (Azimuthal)

Planar (Arimuthal)

Conic

Conic

Compromise

Compromise

Combining Maps and Technology GPS and GIS

Using GPS GPS- Global Positioning System Used to track routes Used to track routes- cars/boats, etc Can track animals (ex. migration routes)

http://dsc.discovery.com/video-topics/other/shark-migration.htm http://www.youtube.com/watch?v=gJfnhokghjw

Using GIS GIS- Geographic Information System Technology that uses digital map information to create a databank Different data layers can be combined to produce specialized maps. Used to analyze to solve problems http://www.smithsonianmag.com/videos/category/3play_1/anne-kelly-knowles-uses-gis-tools-to-re-writ/ http://www.pbslearningmedia.org/resource/psu10sci.vid.geospatial.whystudy/geospatial-revolution-why-study-gis/

File info into your brain! As new technologies link people all over the world, having an understanding of geography is more important than ever. Do you agree? Why or why not? Words with Friends= Work with a partner Cloud= File info into your brain!

Where Google Street View is Available

McDonald’s Across the World

Worldwide Driving Orientation by Country

Map of Where 29,000 Rubber Duckies Made Landfall After Falling off a Cargo Ship in the Middle of the Pacific Ocean

into the Mississippi River The 7000 Rivers that Feed into the Mississippi River

Latitude and Longitude Earth’s Population by Latitude and Longitude