Map Projections

Readings in Slocum: Chapters 7 (review), 8 and 9

Example Cylindrical Equal Area Projections (each is 1:300M)

Terminology

geometric approach:
- reference globe
- developable surfaces: cylinder, cone, plane

class:
- cylindrical, conic, planar (azimuthal)

aspect:
- equatorial, transverse, polar, oblique...normal
- central meridian
- centered on point, latitude of origin

case: 
- tangent (simple) or secant

standard line, 2 lines, point, (2 points)
principal scale 
scale factor (SF)
pattern of distortion

properties:
equal area (equivalent), conformal, neither (compromise)
other special properties

More Cylindrical Projections (each is 1:300M)

Mercator is Cylindrical conformal

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