mercator map coverage
from 8N to 8S at a constant scale
polar stereographic coverage
78 degrees to the pole in both hemispheres
simple conic
based on a developable conic surface that can be cut and opened out to form a flat surface, not orthomorphic
centre of the earth
point of projection on the Simple conic
properties along the PoO and SP
- correct scale- constant scale- chart convergency = earth convergency
standard parallel
the scale is correct and distance measurement will be accurate along this latitude
parallel of origin
where the angle between the meridians is correct and it plays a role in the appearance of a GC on a lamberts conformal projection