Miller oblated stereographic
Parameters: East/west elliptical radius in degrees, North/south elliptical radius in degrees
Geocart menu class: Azimuthal
Meridians: Complex curves
Parallels: Complex curves
Symmetry: About the central meridian as applied to the map of Europe and Africa. No symmetry on other prepared maps.
A line of constant scale bounds an oval region
Scale variations within the oval-shaped region covered are less than variations on standard conformal projections, such as an oblique Mercator or oblique Stereographic projection.
Used for an area that can be contained within an oval shape to minimize the scale distortions in the area. Applied by O.M. Miller to Africa and Europe in 1953 and to other Eastern Hemisphere regions in conjunction with several nonconformal fill-in projections in 1955. Used by L.P. Lee for the Pacific Ocean in 1974.
Osborn Maitland Miller (1897-1979) of the American Geographical Society in 1953
Miller Prolated Stereographic
Stereographic projection has lines of constant scale that are concentric circles.
Description adapted from J.P. Snyder and P.M. Voxland, An Album of Map Projections, U.S. Geological Survey Professional Paper 1453. United States Government Printing Office: 1989.