LabAssignment 2

Times Projection

This projection was developed by Moir in 1965. It is a modified Gall's Stereographic except the times has curved meridians. The advantage of this projection is that it is psuedocylindrical. The meridians are equally spaced curves increasing separation and distortion towards the poles. Stengths to this projection would be that it pretty clearly shows all the countries and their relative shapes, but the distortion close to the poles is so great that it renders it practically useless for anything other than general knowledge.

Robinson Projection

This projection was made in the 1970's for a general purpose map. It isn't equal area or conformal and like the Times projection it curves the meridian. The distortion to the poles is relative severe, but it does a better job at preserving size and shape of high latitude lands than the mercator projection. Directions are true along the parallels and along the central meridian. Directions are true along the equator and along the other parallels.

Polyconic Projection

This projection is used for large scale mapping and best suited for a use with a north-south orientation. Direction is true only on the centre meridian and the distances are true only for the central meridian and along the parallels. This one is also a compromise, not being equal area or conformal.