Map Elements, Map Projections, Scale Bar, Pol Phys ...
Transcript of Map Elements, Map Projections, Scale Bar, Pol Phys ...
Map ElementsMap Projections
Scale BarPolitical, Physical, and Thematic
Maps
Map Elements:
• Title-subject of the map• Symbols-represent information (natural
resources & economic activities
Map Elements:
• Labels-names of places (cities, countries, rivers, mountains, etc.)
• Colors-represent different kinds of information (blue=water, etc.)
Map Elements:
• Lines of latitude-imaginary horizontal lines measuring distance n or s of the equator
• Lines of longitude-imaginary vertical lines measuring distance e or w of the prime meridian
Map Elements:
• Scale-shows how much distance on Earth is represented by distance on the map
• Legend (key)-explains what the symbols and colors on the map represent
Map Elements:
• Compass rose-shows directions north (N), south (S), east (E), and west (W)
• Locator globe-shows the specific area of the world that is shown on a map
Which map elements do you see below?
Map Projections:
ways of showing Earth’s curved surface on a flat map
Azimuthal-often used for the polar regions
Mercator-good for navigation maps
Map Projections
Homolosine-accurately shows the shape and area of landmasses
Robinson-shows the shape and area of continents & oceans with reasonable accuracy
Map Projections
Winkel Tripel-modified version of the Robinson projection, with less distortion of area and shape.
Map Projections
• The world is a sphere but maps are flat, so all maps distort the shapes, areas, distances, and directions found in the real world.
Scale Bar
• shows how much distance on earth is shown on the map
• usually shown in both inches and centimeters
Political Maps
• shows features that humans have created (countries, states, provinces, and cities)
• features are labeled, and lines show boundaries
Physical Maps
• shows natural features of physical geography (mountains, plains, valleys, deserts, oceans, lakes, rivers, etc.)
• can also show elevations (height of a physical feature) and relief (change in elevation from one place to another)
Physical Maps
Thematic Map:
• a map that shows a type of geographical information (economic activity, natural resources, population density, etc.)
• common types-point symbol map, dot density map, proportional symbol map
Thematic Map:
Point Symbol Map-shows location of activities at different points using symbols
Thematic Map:
Dot Density Map-uses dots to show how something is distributed in a country or a
region
Thematic Map:
Proportional Symbol Map-uses symbols of different sizes to show the size of an event