Introduction to Mapping Science: Lecture #3 (Modeling the Earth in GIS) Models of the Earth The earth can be modeled as a –sphere, –oblate ellipsoid –geoid.
Question of the Day Question: How do we know that continents move? Answer: ……… Turn In: Label the Earth Worksheet (blue)
Datums and Projections: How to fit a globe onto a 2-dimensional surface.
