With the exception of compression in the horizontal direction and expansion in the vertical direction, the Behrmann projection is the same as the Lambert Cylindrical Equal-area projection. These changes prevent distortion at latitudes 30° N and S instead of at the Equator.
Straight parallel lines that are equally spaced and 0.42 the length of the Equator.
Straight lines that are unequally spaced and farthest apart near the Equator, perpendicular to meridians.
See Meridians and Parallels. Poles are straight lines the same length as the Equator. Symmetry is present about any meridian or the Equator.
Scale is true along latitudes 30° N and S.
Creating world maps.
Behrmann Cylindrical Equal-Area Projection
Source: Snyder and Voxland, 1989