Map Projections By Mr. Melnick.

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Presentation transcript:

Map Projections By Mr. Melnick

Latitude vs. Longitude 1. Also called parallels 2. Measure distance North and South 3. Equator is 0 --> numbers increase the farther you get away from equator 1. Also called Meridians 2. Measure distance East and West 3. Prime Meridian is 0 --> Runs through Greenwich, England 4. International Date Line 180 degrees

Equator Prime Meridian

Mercator Projection Most common type of projection Accurately shows East-West direction Land formations are more distorted as you get farther away from the equator. Mercator Projection

Robinson Projection NOT equal area Deformation gets worse away from 0 Meridians curve closer to the poles DOES fit the entire earth on one map

Peters Projection Equal area projection Often used in educational circles does not distort area.

Interrupted Projections Interrupted projections can be tricky. Maps are not "whole" It becomes difficult to navigate the "gaps" http://www.progonos.com/furuti/MapProj/Dither/ProjInt/projInt.html

Specialized Maps 1. Topography 2. Vegitation 3. Political 2. Vegitation 3. Political 4. Population

Points of View All maps tell what is important from the mapmaker's culture. Where is the mapmakers home? What resources are shown? Religious centers are often placed in center.