1 / 10

Mapping Our World

Mapping Our World. Latitude and Longitude Cartography Science of mapmaking Uses imaginary grid of parallel lines and vertical lines to locate points on earth Equator cuts Earth in Half. Latitude. Latitude: lines running to the equator dividing the

rogerr
Télécharger la présentation

Mapping Our World

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. Mapping Our World Latitude and Longitude • Cartography • Science of mapmaking • Uses imaginary grid of parallel lines and vertical lines to locate points on earth • Equator cuts Earth in Half

  2. Latitude Latitude: lines running to the equator dividing the globe vertically into degrees north and south of The equator • Each degree of latitude= 111km on Earth’s surface • Each degree is further broken down into minutes and then seconds • Each minutes of latitude= 1.85 km • Each second of latitude= 0.031 km

  3. Latitude • equator is @ 0 Degrees Latitude • 90 Degrees North Latitude is North Pole • 90 Degrees South Latitude is the South Pole • 23.5 Degrees North Latitude is Tropic of Cancer • 23.5 Degrees South Latitude is Tropic of Capricorn

  4. Longitude Longitude: lines used to locate positions East and West of the Prime Meridian • Each degree of longitude is 111 km at the Equator and is further broken down into minutes and seconds • Distance between lines of longitude change-largest at the equator and smallest at the poles. • Unlike lines of Latitude, lines of Longitude are not parallel but are semicircles running from pole to pole • Distance between degrees of longitude are not equal, unlike the distance between degrees of latitude; smaller distance closer to the poles. • When using coordinates to locate a specific point, degrees of latitude are given first followed by degrees of longitude

  5. Longitude • Prime Meridian is @ 0 Degrees longitude through Greenwich England • Points west of P.M. are numbered 0-180o west • Points east of the P.M are numbered 0-180o east • International dateline is opposite P.M. when crossing you going west, add a day, when crossing going East subtract a day

  6. Latitude and Longitude Together

  7. Time Zones Time Zones: 24 different time zones on Earth, Why? (it takes the earth 24 hours for 1 rotation) • Each zone is = 15 Degrees wide, adjusted to local areas to reduce time zone confusion • United States has 6 time zones

  8. Time Zones

  9. Need a Date for Homecoming ? Call the … International Date Line Calendar Dates: days based on Earth’s rotation, just as time zones are, so when passing through time zones, you either gain or lose time • On the international dateline, 180 Degrees from the Prime Meridian, days are lost and gained • Traveling west across the prime meridian you gain a day • Traveling east across the prime meridian you lose a day

  10. International Date Line

More Related