GEOG 170 Study Guide - Midterm Guide: Mercator Projection, Map Projection, Unita
Document Summary
Each lecture is summarized below by key ideas and overall themes; also included are questions you should be prepared to answer. Students will need a #2 pencil and calculator for this exam. Students will not be allowed to use the calculators in their cell phones or pda"s. What are some characteristics of maps: recognize the two general categories of maps: reference vs. Identify/explain the 3 different models for representing the shape of the earth. Vertical datum: different model of earth = different lat/long coordinates. Classes 4-5a: coordinate systems & global grids: why do we need coordinate systems? (why don"t we just use geographic coordinates?, what is a coordinate system, universal transverse mercator (utm) system. Establishes two false origin northern and southern hemispheres. How does utm information appear on map: state plane coordinate (spc) system. Each zone has own projection based on state orientation transverse mercator vs. Each zone has own false origin (define & understand why it"s used)
