Lambert's conformal conic projection with two standard parallels - has two concentric parallels and perpendicular, equally spaced straight meridians. Areal distortion around the standard parallels is low. Maintain true relationships of area, although shape may be distorted. Also called Equivalent. Uses - Useful for thematic mapping where the spatial distribution of phenomena is important.
Distortion is parallel to the standard lines.
Used as standard base map by many U.S. agencies. Distortion is parallel to the stan dard small circles. Sinusoidal - conventionally uses standard central meridian and equator, along which there is no distortion. Can use constant interval for the paralle ls, so useful for displaying longitudinal relationships. Mollweide's - looks more realistic at the poles than sinusoidal.