GEO 303 Chapter Notes - Chapter 7: Sea Level, Contour Line, Great Circle
23 Dec 2017
School
Department
Course
Professor
Document Summary
Topographic: uses contour lines to convey information about elevation. Geologic: shows outcrop pattern of rock formations and geologic structures. A map projection is a method of representing the curved surface of the earth on a flat plane. Mercator- lines of latitude and longitude are perpendicular and uniformly spaced. Equal-area - maintains correct relative sizes of areas. Map grid: latitude and longitude give unique coordinates for each location on earth"s surface. Latitude and longitude are expressed in degrees, minutes and seconds. East-west imaginary lines (small circles) positioned north and south of the equator (a great circle) at 0 latitude. Equator divides northern (0 to 90 n), and southern. North-south lines (great circles) that converge at the north and south poles. Prime meridian at 0 longitude passes though greenwich, uk. International date line at 180 passes through the middle of the. Western hemisphere is 0 to 180 going west from the prime. Meridian, and eastern hemisphere is 0 to 180 going east.
