Wagner V

Description

The Wagner V projection is a compromise pseudocylindrical map projection for world maps.

The projection was introduced by Karl Heinrich (Karlheinz) Wagner in 1949. It is available in ArcGIS Pro 1.2 and later and in ArcGIS Desktop 10.4 and later.

An example of the Wagner V projection
The Wagner V map projection is shown centered on Greenwich.

Projection properties

The subsections below describe the Wagner V projection properties.

Graticule

Wagner V is a pseudocylindric projection. The meridians are partial ellipses except the central meridian. They are concave toward the center and do not intersect the parallels at right angles. The parallels are unequally distributed straight lines. The equator, both poles, and central meridian are projected as straight lines. The graticule is symmetric across the equator and the central meridian.

Distortion

The Wagner V projection is neither conformal nor equal-area. It generally distorts shapes, areas, distances, directions, and angles. Distortion patterns are similar to other compromise pseudocylindrical projections, although this projection has moderate area distortion. The high latitude areas are exaggerated. Angular distortion is moderate near the center of the map and increases toward the edges. Distortion values are symmetric across the equator and the central meridian.

Usage

Wagner V projection is appropriate for general world maps.

Limitations

Wagner V is supported on spheres only. For an ellipsoid, the semimajor axis is used for the radius.

Parameters

Wagner V parameters are as follows:

  • False Easting
  • False Northing
  • Central Meridian

Source

Wagner, K. H. (1949). Kartographische Netzentw├╝rfe. Leipzig: Bibliographisches Institut.