Alaska series E

Description

This projection was developed in 1972 by the USGS to publish a map of Alaska at 1:2,500,000 scale.

Illustration of Alaska series E projection

Projection method

Approximates equidistant conic, although it is commonly referred to as a modified transverse Mercator

Learn more about the equidistant conic projection

Lines of contact

The standard parallels at 53°30' N and 66°05'24" N

Linear graticules

The meridians are straight lines radiating from a center point. The parallels closely approximate concentric circular arcs.

Properties

Shape

Neither conformal nor equal area

Area

Neither conformal nor equal area

Direction

Distortion increases with distance from the standard parallels.

Distance

Accurate along the standard parallels

Limitations

This projection is appropriate for mapping Alaska, the Aleutian Islands, and the Bering Sea region only.

Uses and applications

Parameters

Supported in ArcInfo Workstation only. Projection-specific parameters are set by the software.

Related Topics

7/31/2013