Presentation on theme: "Special Purpose Maps."— Presentation transcript:
1 Special Purpose Maps
2 Special Purpose Maps As you explore the
world, you will encounter many different kinds of special purpose maps. For example, a road map is a special purpose map. The title of each special purpose map tells the purpose and content of the map. Usually a special purpose map highlights only one kind of information. Examples of special purpose maps include land use, population distribution, recreation, transportation, natural resources, or weather. The key on a special purpose map is very important. Even though a special
purpose map shows only one kind of information, it may present many different pieces of data. This data can be shown in symbols, colors, or arrows. In this way, the key acts like a dictionary for the map.
3 The
highest revenue-generating company headquartered in each state - 2014
4 Population Density
5 Pangea with modern
borders
6 Gross Domestic Product
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10 Africa GDP
11 Middle East - GDP
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16 Locations where Google Street is available
17 Countries where the
metric system is not used
18 World Map of the Different Writing Systems
19 The Number of Researchers per Million Inhabitants Around the World
20
Coffee Consumption per Country
21 Worldwide Driving Orientation Worldwide
22 The World Divided Into 7 Regions, Each with a Population of 1 Billion
23 Frequency of Lightning Strikes Throughout the World
24 McDonald’s Across the
World
25 July 2014
26
The Only 22 Countries in the World Britain Has Not Invaded (not shown: Sao Tome and Principe)
27 Reversed Map with Southern Hemisphere at Top of Map (because
position of North is arbitrary)
28 Warmup Study the map and describe the information you can deduce from looking at it Earthquakes recorded in 2000
29 Warmup What is the map telling you?
What is the most interesting thing you notice? Can you describe what is happening on the planet from the map? How would someone use this map? How would you use it? Earthquakes recorded in 2000
Special Purpose Map Definition: Special purpose maps are designed or created for the special purpose. They are not standard map, specialized map displaying particular information. For example a DEM (digital information model) which shows only the elevation value is a special purpose map where as a political map might show river, height info, roads, city name and so on is a standard map. In a special purpose map information are not cluttered rather it is focus on one subject where as standard map have tons of information on it.
Types of Special Purpose Maps
Population Density Map: Population Density maps shows the population dense area.
Vegetation Map: Vegetation maps display different types of vegetation. Normally remote sensing is used to create this type of map.
Land Cover Map: Land Cover map shows different features present in the area. It might have road structure, city foot prints, vegetation and more. Remote sensing is heavily used to produce these type of map.
Slope Map: GIS tools are normally used to create this type of map where map display the sloppiness of the area. Slope value is shown in percentage or in angle.
DEM Map: Digital Elevation Model map which is in a raster format that has the Z value or height information.
Aspect Map: Aspect map shows the direction that topographic slope faces. Normally they are measured in degrees from north.
TIN Map: Triangulated Irregular Network, which display the elevation values using non overlapping triangles.
Precipitation Map: It shows the amount of the rainfall in the area.
Elevation Profile Map: Elevation Profile map shows the change in the z values with respect to distance.
Hot Spot Map: Hot Spot map shows the density value in the particular area. For example it might be used by crime analyst to show the major crime area.
Watersheds Map: It display area of the land that divides waters flowing to different rivers, basins, or seas.
Conclusions:
Special Purpose Maps are created for the special purpose. Nevertheless you can add other related information on the map to add value to it. Like watersheds maps can have road network which will add value while you are designing an irrigation system.