GEO 121 1st Edition Lecture 2 Outline of Last Lecture 1 Maps Outline of Current Lecture 2 Topographic Maps a Parallels and Meridians b Contour Lines c Iso Lines d Important Symbols 2 Chapter Highlights in the book Current Lecture Topographic Maps Special Parallels and Meridians o 90 North Arctic Circle o 90 South Artic Circle o 180 E W International Date Line o 23 N Tropic of Cancer o 23 S Tropic of Capricorn Contour Lines o Type of iso line o Connects points of equal elevation o The closer the lines the more steep the elevation Iso Lines o Connect points of equal value o Can be isochronic equal time Important Symbols o M usually with an x denotes benchmarks These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute o Perpendicular symbol denotes spot elevation usually used by engineers and construction workers o denotes monuments o The U S Geological Survey seeks to be 90 accurate 90 of the time Chapter Highlights Pg 36 Geographic Shapes Pg 39 Scale Information Pg 40 Topographic Map with Contour Lines Pg 41 North Arrow Information Pg 43 2 D Topographic Maps Pg 49 Aerial Photography Pg 50 Color vs Color Infrared Pg 53 Photos of New Orleans Pre Katrina
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