Introduction to Geodesy and Mapping

Terminal Objective (TO): Describe the shape of the Earth

Enabling Objective (EO):

• Define spheroid, ellipsoid, and geoid
• Explain the ellipsoid of revolution and its relationship to the Geoid
• Describe the characteristics of height systems (e.g. dynamic, orthometric and normal heights).
• Differentiate between gravity related and ellipsoidal height.

TO: Describe a Datum

EO:

• Explain how the Earth is measured and the importance of distinguishing the difference between datums.

TO: Describe Map Projections

EO:

• Explain a generation globe, scale factor, and convergence.
• Explain principal and actual scale (and differentiate between them) and how scale varies on a projection.
• Explain the three types of projection (gnomonic, Orthographic, and stereographic).
• Explain standard line, great circle, and rhumbline.
• Explain secant and tangent case projections.
• Explain conformal and non-conformal.
• Explain the more commonly used projections and why. Provide examples.