Q320. Explain this diagram:
This diagram shows the two standard parallels for a conical projection. Conical projections are generated by wrapping the projection surface into a cone that fits over the globe from a pole such that the conical surface is tangent to the sphere along a line of latitude, or, more commonly, passes shallowly through the sphere so that it is tangent at two small circles or latitudes that we call "standard parallels." The resulting graticule is fan-shaped. All features lying on the concentric circles of the standard parallels would be undistorted with minimal distortion between them (provided they are close together) and more distortion as we move north or south. This projection is often used for local coordinate systems in territories that stretch more east-west than north south.