Parts of a Map Title Legend Direction Scale.

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Presentation transcript:

Parts of a Map Title Legend Direction Scale

Map Scale Expressed as a ratio of unit on map to actual number of units on Earth. 1:100,000 inches = 1 inch on map is the equivalent of 100,000 inches in the real world The larger the second number, the smaller the map scale

THUS… A large-scale map displays a relatively small section of the Earth’s surface A small-scale map displays a relatively large section of the Earth’s surface

Remote Sensing Measuring and interpreting the Earth’s surface from far away Balloon Aircraft Satellite

Remote Sensing Satellite imaging often produces “false color” images

False Color (example)

Orthophoto Map Map drawn on actual aerial/satellite photo

Geographic Information System (GIS)

GIS Layers

GIS Layering Vectors Rasters

What GIS Can Do