Map Projections  A Globe is the only accurate method to represent the earth.

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Presentation transcript:

Map Projections

 A Globe is the only accurate method to represent the earth.

Map Projections  A Globe is the only accurate method to represent the earth.  Maps are a representation of the earth’s features on a flat surface.

Map Projections  A Globe is the only accurate method to represent the earth.  Maps are a representation of the earth’s features on a flat surface.  Maps were created because they are easy to carry and fold up.

Map Projections  A Projection is when features of the globe are transferred to a flat surface.

Map Projections Each Projection will have a distortion: - Some areas enlarged - Some areas shrink - Directions become inaccurate

Projection Types 1. Mercator Projection - Navigation Charts - True Compass Bearing - Distorts Size of Land Masses >Equator small >Poles large

Projection Types

2. Peter’s Projection - Equal Area - Distorts Direction

Projection Types

3. Winkel Tripel Projection -Provides best balance of size, shape, distance and direction

Projection Types

Map Types 1. General Purpose - Many types of info on one map - General understanding of landscape and location

Map Types 2. Thematic Maps - Shows information on one topic - Easy to understand

Map Types 3. Topographic Maps - Use Symbols to show a variety of features