Maps and the Geospatial Revolution: Lesson 1, Lecture 2
Maps and the Geospatial RevolutionLesson 1 – Lecture 2Anthony C. Robinson, Ph.DLead Faculty for Online Geospatial EducationJohnA. Dutton e-Education InstituteAssistant Director, GeoVISTA CenterDepartment of GeographyThe Pennsylvania State UniversityThis content is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License
The Changing Nature of Place• Geotagging alone isn’t enough• The places that matter to us are a lot more difficultto describe• I live in HappyValley, in a neighborhood calledHunter’s Chase• An ongoing challenge in the Geospatial Revolutionis in how we handle these types of locations
OK, SoWhat is Geography?• Geography is the Science of Place and Space• Common responses to “I’m a Geographer”when I fly somewhere:– Oh cool, I have a cousin who’s a Geologist!– Haven’t all of the maps already been made?– Oh neat, I have no idea what that is!– Wow, that is so sad!
OK, SoWhat is Geography?• Geography– The science of understanding places and spaces• Geospatial– Refers to the data and technologies that allowone to explore Geographic problems
Maps toTell Stories & Provide Context• Thematic Maps– Thematic maps are used to showcase geographicdata observations.Thematic maps are almostalways associated with storytelling.• Reference Maps– Reference maps (also frequently called basemaps)provide the basic Geographic context required tosituate other stuff.
The Earth is Round – Maps are Flat• We need a reference system tolocate things on the Earth• So we impose a grid on theplanet with lines of Longitudeand Latitude• Transforming locations from the3D earth to a 2D map requires aprojection• Projections can preserve area,shape, distance, and otherattributes, but not everything atonce
Maps and the Geospatial Revolution www.coursera.org/course/mapsTwitter @MapRevolutionOnline Geospatial Education @ Penn State www.pennstategis.comThis content is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License