GEO 121 1st Edition Lecture 2Outline of Last Lecture 1. Maps Outline of Current Lecture 2. Topographic Mapsa. Parallels and Meridiansb. Contour Linesc. Iso Linesd. Important Symbols2. Chapter Highlights (in the book)Current Lecture:Topographic MapsSpecial Parallels and Meridianso90° North-Arctic Circleo90° South-Artic Circleo180° E/W International Date Lineo23° N-Tropic of Cancero23° S-Tropic of CapricornContour LinesoType of "iso" lineoConnects points of equal elevationoThe closer the lines, the more steep the elevationIso LinesoConnect points of equal valueoCan be isochronic-equal timeImportant SymbolsoM (usually with an x) denotes benchmarksThese 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.oPerpendicular symbol denotes spot elevation (usually used by engineers and construction workers)oΔ denotes monumentsoThe U.S Geological Survey seeks to be 90% accurate 90% of the timeChapter HighlightsPg. 36 Geographic ShapesPg. 39 Scale InformationPg. 40 Topographic Map with Contour LinesPg. 41 North Arrow InformationPg. 43 2-D Topographic MapsPg. 49 Aerial PhotographyPg. 50 Color vs. Color InfraredPg. 53 Photos of New Orleans
View Full Document