GEOG 1HB3 Lecture Notes - Lecture 5: Mercator Projection, Map Projection, Distance Decay

• School: McMaster University
• Department: Geography
• Course: GEOG 1HB3
• Professor: Michael Mercier

Document Summary

Geography - lecture 5 (lecture 4 is gis) New york and philadelphia have the highest level of interacion. Size of the two ciies (bigger ciies = more interacion) Distance between the ciies (closer together = more interacion) Distance decay: the efect distance has on cultural and spaial interacions. And how we use those maps for spaial analysis. Maps are 2-dimensional graphical representaions of the world, and depict spaial relaionships. We also use maps to communicate informaion. Maps are the analysis of spaial informaion. Maps are socially constructed: individuals are making decisions about what to include or exclude on the map, paterns to depict on the map, read maps with a criical eye. How do you portray a 3-dimensional sphere in only 2-dimensions: ex. How to take the surface of the earth, remove it, and lay it lat, then put it back into a sphere. Projecion: mathemaical technique for represening a 3-dimensional sphere on a 2-dimensional map.