“Sphere to Cylinder”: Polar Aspect - Map Projections: Cartographic Information Systems - page 307

Fig. 10.3. Principle for constructing a cylindrical map projection in the polar aspect (secant cylinder: Φ 0 =
± 30 ◦ ). Greenwich (1) and equator (2). Φ 0 = const. (3) and −Φ 0 = const. (4)

(10.5)

D Φ X

C 2 = E Φ =

D Φ X

(Northing) .

Next, we specialize the general cylindrical mapping to generate an equidistant mapping, a
conformal mapping, and an equal area mapping.

10-2 Special Mapping Equations

Setting up special equations of the mapping “sphere to cylinder”. Equidistant mapping (Plate
Carree projection), conformal mapping (Mercator projection), equal area mapping (Lambert
cylindrical equal area projection).