Two different modern methods of map making include compilations of already existing material, and satellite or other aerial imaging. Compilation maps often try to capture a larger picture and must omit smaller details, largely due to discrepancies between existing material, while satellites and aerial imaging can focus on the minute details because they are original map creations.Know More
Compilation maps go through extensive selection processes for selecting material, creating both problems when there are discrepancies, as well as insight into changing geographies or perceptions. This method has the benefit, however, of being able to use maps with many different purposes to draw a larger picture. For example, soil maps, geologic maps and other thematic maps can all be compared to develop a final product.
Maps created from aerial imaging and satellites encounter other problems, such as a ridge of a mountain being seen in more detail on one side than another. If the terrain is too steep, one side of a mountain may not be seen at all. This problem is rectified by either compiling many aerial or satellite images, or comparing with already existing maps. However, technology for map making is constantly advancing, minimizing the possibility of error. A person who creates maps in this way is called a photogrammetrist.Learn more about Maps & Cartography
The purpose of maps lies chiefly in navigation and in helping cultures determine new trade routes. Throughout history, governments have put a priority on creating detailed, accurate maps. Today, the term "map" also refers to visual representations of various ideas and concepts.Full Answer >
A population map is used to represent the overall distribution of population within a particular area. Most maps represent the varying population data using color, while other population maps use symbols, such as circles or stars.Full Answer >
A map legend is a table or chart included on a map to indicate the meaning of the map's varied symbols. This can be also be called the map's key.Full Answer >
A map marker is a symbol used to mark a point on a map. There is no universal symbol for map markers. They can be virtually any symbol or design selected by either the map maker or the person marking the map.Full Answer >