Different World Map Projections
However map projection refers specifically to a cartographic projection.
Different world map projections. Depending on configuration the projection also may map the sphere to a single diamond or a pair of squares. In no particular order we give you our top 10 world map projections. So they re good for mapping an area like the united states. Distortions on maps of countries or cities are not evident to the eye and can only be identified when computing.
Different projections have different distortion patterns. However map projections have distortions which depend largely on the size of the area being mapped. The study of map projections is the characterization of these distortions. This map projection shows greenland as the same size as argentina and not as the size of all of south america.
It s ability to represent lines of constant course from coast to coast made it the. But in reality africa is 14 times the size of greenland. Scale distortions on maps are shown on the map by an ellipse of distortion or using scale factor which is the ratio of the scale at a given point to the true scale. Pseudocylindrical equal area édouard collignon.
The mercator projection depicts greenland as larger than africa. The map resorts to mathematics to curtail three major types of distortion area direction and distance and hence the german term for triple tripel is in the name. Each projection distorts maps in different ways. The projection we are used is commonly known as the mercator projection.
There is no limit to the number of possible map projections. Smoothly animated map projections. Map projections without distortions would represent the correct distance direction shapes and areas on a map. This projection was developed by gerardus mercator back in 1569 for navigational purposes.
Certain map projections or ways of displaying the earth in the most accurate ways by scale are more well known and used than other kinds. Some like the albers equal area conic distort more as you go north or south but don t distort much as you go east or west. And different projections distort maps in different ways. They re not so good for mapping a country like chile though which runs north south.
Three of these common types of map projections are cylindrical conic and azimuthal. What we see in a world map projection is not an accurate representation of the planet. 1932 equivalent to kavrayskiy vii vertically compressed by a factor of. A family of map projections that includes as special cases mollweide projection collignon projection and the various cylindrical equal area projections.
This transference has been subject to interpretation and choice since the earliest days of world mapping.