Google Earth User Guide - Manual (Page 101)

intended to
preserve
the
distance
between
three
reference
points
relative to
any other
point.
Lambert Conformal Conic A
projection
ideal for
middle
latitudes
and/or
where the
territory to
be mapped
has an
east-west
orientation.
This
projection
is often
found in
USGS
maps
created
after 1957.
Scale is
most
accurate at
the
expense of
area.
When building whole-earth databases, a single global projection is the most convenient to use. Google Earth
uses Simple Cylindrical projection for its imagery base. This is a simple map projection where the meridians
and parallels are equidistant, straight lines, with the two sets crossing at right angles. This projection is also
known as Lat/Lon WGS84.
1. Simple Cylindrical (Plate Carree) Projection
2. Google Earth Image Base