Projections
Name 3 cartographic projections
Cylindrical, conical, azimuthual, Mercator, Peters, Robinson
What is a time zone?
A time zone is one of the areas into which the world is divided according to what time it is there. For example, the Pacific time zone is two hours behind the Central time zone which is one hour behind the Eastern time zone.
What is a map?
What is a scale?
A scale is a set of levels or numbers which are used in a particular system of measuring things or are used when comparing things.
Why is the main purpose of a projection?
To give us an approach of something in specific, in geography for example: The Earth
What's the purpoise of the times zones?
Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
Tell three types of maps
Political Maps
Physical Maps
Road, Street and Highway Maps
Topographic Maps
Time Zone Maps
Geologic Maps
Zip Code Maps
Weather Maps
Species Distribution Maps
Income Maps
Resource Maps
Earthquake Maps
Plate Tectonics Maps
Mention the 3 types of scales
Fractional or Ratio Scale, Linear Scale and Verbal Scale
Describe the difference between a map and a chart
A map is general and a chart is and specific map for an specific purpose.
Minus 6 and minus 7
Describe the political map
They show the geographic boundaries between governmental units such as countries, states, and counties. They show roads, cities and major water features such as oceans, rivers and lakes.
In the ratio scale, the bigger the number...
The more territory or space it represents.
Describe one cartographic projection
Azimuthal: This map projection is flat-based, also named a plane projection. From the viewpoint of the top or bottom of the globe, the projection can display one/part of the hemispheres. It produces a circular map. This isn't the most common of map projections.
Conical: For these projections, paper can be wrapped around a part of the globe in a cone shape. These kinds of maps won't show the entire globe because the distortion would be too large, but rather sections or hemispheres of the globe. These produce a half-moon-shaped map when the cone shape is spread out.
Cylindrical: This projection uses a rectangle map with straight coordinate lines (both vertical and horizontal), and when you wrap it around a globe, it produces a cylinder or tube shape when the edges of the paper touch each other. These maps are accurate at the equator; however, the north and south poles become very distorted, where the earth starts to curve. With these kinds of projections, it becomes easy to visualise the whole world, even if the accuracy is not so high.
Mercator: On this projection, the most accurate projection is closest to the equator, but as you move away from the equator, more distortion occurs. As you can see on the image below, countries further from the equator are not accurate sizes and appear stretched.
Robison: On this map, latitude lines are straight, just like on the Mercator projection. However, the longitudinal lines are curved and become increasingly more curved further from the Meridian.
Peters: Just like the Mercator projection, it is a cylindrical projection with a similar distortion (more accurate at the equator, less towards the poles). However, the countries are all the correct sizes. This particular map is now used globally, even by the United Nations.
What time is right now in Paris, France? Remember that France has a time zone of plus 1
Describe the linear scale.
A linear scale depicts the distance between two or more notable locations. On maps, the linear scale is a series of lines or dots that represent a landmark.
Describe the Peter's cartographic projection
Peters: Just like the Mercator projection, it is a cylindrical projection with a similar distortion (more accurate at the equator, less towards the poles). However, the countries are all the correct sizes. This particular map is now used globally, even by the United Nations.
Tell the time zones of these countries: Argentina, South Africa and Japan
Argentina is minus 3, South Africa is plus 2 and Japan is plus 9
Describe the verbal scale.
Simple terms are used to define a noticeable surface feature on this scale. A verbal map scale describes a location or object by expanding abbreviations, for example “One inch to the mile”.