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GEO 121 -
Review of Scales
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GEO 121 1st Edition Lecture 7 I Outline of Last Lecture Projections II Robinson Projection III Survey Systems Outline of Current Lecture IV Review of Scales 1 Types of Scales 2 Common Scales II Aerial Photographs Current Lecture Review of Scales Types of Scales o Ratio ex 1 24 000 o Fraction ex 1 24 000 o Bar Scale o Verbal Scale ex one inch equals twenty four thousand inches Common Scales o 1 24 000 o Most common scales Valueless unless specified otherwise 1 63 360 o 1 63 200 Equals exactly one mile Equals approximately one mile Aerial Photographs Can be o Black and White o Color o Infrared o Color infrared The current favorite amongst geographers Shows reflected radiation Are affected by o Size Actual Relative o Texture o Shape o Pattern
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