Gis fundamentals - Study guides, Class notes & Summaries

Datum  - Provides a frame of reference for finding locations - Based on a spheroid Minor Axis  - The shorter axis of the ellipse - North to South Shape of the Earth (Ellipsoid)  Oblate Ellipsoid - because it rotates on the minor axis Prolate Ellipsoid  If the Earth rotated about its major (longer; West/East) axis Ellipsoid  a model of the rounded shape of earth (bulging at the equator) Measuring Ellipsoids  Measured by semi-axes (half of an axis) - Semimajor and S...