MAP PROJECTIONS.

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Presentation transcript:

MAP PROJECTIONS

Map projections distort in 4 main areas The World is round Projecting the Earth onto a flat surface will cause distortion of some type Map projections distort in 4 main areas Distance Direction Shape Area

Peeling the Earth

MERCATOR PROJECTION Developed in 1500’s Cylindrical Projection Preserves direction Distorts the area of landmasses relative to each other Land becomes increasingly distorted (larger) at higher altitudes (near the poles) Greenland, Alaska, Antarctica, etc look huge! Much Criticism lately Used for marine navigation

MERCATOR PROJECTION

ROBINSON PROJECTION Developed in 1963 Good overall balance Adopted by National Geographic as official map

ROBINSON PROJECTION

GOODE’S INTERRUPTED Land masses are true size in relation to each other

3. Peters Projection-controversial map because it distorts the familiar shapes of the continents and other large landmasses. It accurately compares landmasses in terms of area.

Different Maps Maps can show many things, including cultural bias

CARTOGRAM

Dot Maps Each dot represents a certain amount of something

deblij_ch01_fig09 Reference Maps give absolute location of places deblij_ch01_fig09.jpg deblij_ch01_fig09

Thematic maps tell stories or give information

Pacific centered map

Australian Map

Pacific Centered Map

deblij_ch01_fig10 deblij_ch01_fig10.jpg

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