ANT306H5 Lecture Notes - Lecture 3: High Tech, Pythagorean Theorem, Geographic Coordinate System
Document Summary
Orient yourself: where are you, where do you want to go, how to get there. What you will encounter: vegetation, topography, distances, access points, proximity to water, etc. Custom maps: crime scene, gis, geographic information systems, many layers of info. Satellite: landscape, vegetation, population density, types of buildings, etc. Must include all these features on every map you produce for class. System of geographic coordinates or grid units. Geographic coordinates: latitude and longitude, degrees, minutes, seconds, latitude 1st 43 o 34"5""n, north or south of equator, read lat up the map, each black/white bar us 1". Contour lines: elevation, points at same elevation joined by a line enclosed, contour lines have fixed height interval, e. g. 1m: distance between lines, distance in which elevation changes, far apart = gradual, close together = steep, search purposes, which way to approach scene, how rough/steep. Turn housing so bearing is where you want. Turn body until red compass needle inside the orienting arrow.
