1 / 24

Maps

Maps. Latitude & Longitude. 2D vs. 3D Maps. Main Idea 1. Each practical map contains specific indications, symbols, & keys that are vital for navigating or pinpointing an exact location. CARTOGRAPHY. What is a cartographer ? . CARTOGRAPHY. Define Cartographer :

tobias
Télécharger la présentation

Maps

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Maps Latitude & Longitude 2D vs. 3D Maps

  2. Main Idea 1 Each practical map contains specific indications, symbols, & keys that are vital for navigating or pinpointing an exact location.

  3. CARTOGRAPHY What is a cartographer?

  4. CARTOGRAPHY Define Cartographer: person who specializes in making maps

  5. LATITUDE & LONGITUDE What is latitude? What is latitude?

  6. LATITUDE & LONGITUDE Define Latitude: imaginary lines that run horizontally on a map/globe, indicating a distance north or south of the equator Also called: Parallels 0o is called: Equator

  7. LATITUDE & LONGITUDE What is longitude? What is longitude?

  8. LATITUDE & LONGITUDE Define longitude: imaginary lines that run vertically on a map/globe, indicating a distance east or west of the prime meridian Also called: Meridians 0o is Called: Prime Meridian

  9. JUST TO RECAP

  10. SYMBOLS USED ON A MAP What is a compass rose? What is a compass rose?

  11. SYMBOLS USED ON A MAP Define Compass Rose: a design on a map that indicates direction

  12. SYMBOLS USED ON A MAP What is a compass? What is a GPS? What is a compass? What is a GPS?

  13. SYMBOLS USED ON A MAP Direction Tools Used in Real Life Compass: Instrument used to determine direction by means of a magnetic needle pointing to magnetic north Global Positioning Satellite (GPS): Satellite signals that plot positions using coordinates (latitude/longitude).

  14. SYMBOLS USED ON A MAP What is a scale? What is scale?

  15. SYMBOLS USED ON A MAP Define Scale: The ratio of a distance on a map to the actual distance between locations Types of Scales 1.) Graphic: Directly shows the length of some unit of distance on a map 2.) Fractional: Gives the ratio of units on a map to units on Earth’s surface

  16. Main Idea 2 2D maps distort distances on the 3D surface of Earth

  17. PROJECTIONS What is a projection? What is a projection?

  18. PROJECTIONS Define: Conversions of a 3D object into a 2D one. 2 Types of Projection: 1.) Cylindrical 2.) Planar

  19. PROJECTIONS What is cylindrical projection? What is a cylindrical projection?

  20. CYLINDRICAL PROJECTION Define Cylindrical Projection: Taking a 3D model of Earth and then rolling it flat. Meridians & parallels are equally spaced & perpendicular to each other.

  21. CYLINDRICAL PROJECTION Advantage: Navigators can easily plot their compass bearings as straight lines Disadvantage: Model gets highly distorted toward the top and bottom

  22. PROJECTIONS What is planar projection? What is planar projection?

  23. PLANAR PROJECTIONS Define Planar Projection: Conversion of a 3D globe into a 2D map by cutting the globe in half The 2 Poles are at the center.

  24. PLANAR PROJECTIONS Advantage: Areas at the poles are highly accurate; easier for airplane pilots to locate shorter routes. Disadvantage:Gets highly distorted towards the edges.

More Related