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Latitude & Longitude

Latitude & Longitude. All maps are really projections , showing a round Earth as flat. Not a lie, just s t r e t c h i n g the truth. In space, there is no such thing as “up” or “down”!. Where do latitudes originate?. Angles NORTH or SOUTH of Equator. Create parallel lines.

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Latitude & Longitude

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  1. Latitude & Longitude

  2. All maps are really projections, showing a round Earth as flat. Not a lie, just s t r e t c h i n g the truth.

  3. In space, there is no such thing as “up” or “down”!

  4. Where do latitudes originate? • Angles NORTH or SOUTH of Equator. • Create parallel lines.

  5. Where do longitudes originate? • Angles EAST or WEST of Prime Meridian. • Meet at Poles, widest at Equator.

  6. 77) A Fossil called Asfaltomylos patagonicuswas discovered near point F on the map. State the latitude and longitude to the nearest degree. Include the correct units and compass directions in your answer. [1] 44oS & 67oW

  7. 40oN, 50oE

  8. All Longitudes in NY are West Prime Meridian All Latitudes in NY are North Equator

  9. Which New York State location has a latitude ofapproximately 42°North? (1) Jamestown (3) Oswego (2) Plattsburgh (4) New York City

  10. Near which city in New York State may this road sign be found? (HINT: pg 3 of the Earth Science Reference Tables) Massena, NY

  11. What is the approximate location of the Canary Islands hot spot? (1) 32° S 18° W (3) 32° N 18° W (2) 32° S 18° E (4) 32° N 18° E

  12. Mr. Pearl is vacationing on Slide Mountain. What is his latitude and longitude? (1) 42° 0’ N, 74º 27’ W (2) 41° 55’N, 74º 30’W (3) 42° 10’N, 75º 5’ W (4) 42° 1’N, 74º 35’W

  13. Which location is closest to Dub Set (White Plains, NY)? (1) 41° N latitude, 74º W longitude (2) 42º N latitude, 74º W longitude (3) 43º N latitude, 76º W longitude (4) 44º N latitude, 75º W longitude

  14. Latitudes and Longitudes from Space

  15. From which New York State location would Polaris be observed to have an altitude closest to 43° above the northern horizon? (1) Binghamton (3) Watertown (4) New York City (2) Utica

  16. How can we determine longitude? • Earth constantly rotates, Let’s calculate its rate… • The sun only faces one side of the Earth at a time (12 noon), hours change East or West of the sun. • Longitudes can be determined from time. (And time from longitudes!)

  17. West is earlier (AM), and east is later (PM)! 15o/hr ! Later (past noon) Earlier (not yet noon) If it is 12 PM (noon) at 0o, what time is it at 180o on the other side of the Earth? 12 PM (Noon) 12 AM (Midnight)!

  18. ?

  19. The world map above marks location A, in Angola. If it is 3 PM there, what time is it by the star in Rio de Janeiro, Brazil 1) 11 AM 3) 7 PM 2) 12 PM (noon) 4) 6 PM

  20. As Earth rotates (from West to East), the sun APPEARS to move through the sky from East to West! West East Where does the sun rise & set?

  21. In fact, everything APPEARS to move through the sky from East to West in circular paths!

  22. Everything appears to move except… POLARIS (The North Star)

  23. How do you find Polaris?

  24. Polaris is the last star in Ursa Minor (The Little Dipper). Ursa Major (The Big Dipper) helps point you to Polaris.

  25. Polaris is over the North pole. It ALWAYS points you north.(If you are north of the Equator!) The height of Polaris in the sky is equal to your latitude. (ONLY NORTH of the Equator!)

  26. The diagram shows an observer on Earth viewing the star Polaris. What is this observer’s latitude? (1) 38° N (3) 52° N (2) 38° S (4) 52° S

  27. The altitude of Polaris = latitude North of Equator! Polaris is at 0o Angle Equator = 0o latitude Polaris is at 30o Angle New Orleans = 30o N Polaris is at 90o Angle North Pole = 90o N

  28. What happens to height of Polaris as you move toward the North pole? How about if you move SOUTH from the pole? Where would you see Polaris if standing AT the North Pole?

  29. Polaris appears to be at a 0o angle to a person at the Equator (0o latitude). Polaris is at a 90o angle above the North Pole. The North pole is 90o North latitude.

  30. Which diagram best represents the view of Polaris to an observer located at the Earth’s Equator?

  31. Isolines

  32. Mr. Pearl has the unfortunate task of grading a student’s isomap. There is at least one mistake on the map though. Where is it?

  33. Practice isolines with this link!

  34. Topographic Maps

  35. Simple • Distance • Legend (w/ directional) • Contour Interval • Sea level • Slope (or Gradient) • Rivers (& their direction)

  36. When is it a hill and when is it a hole in the ground? 100 300 100 300

  37. When is it steep?

  38. What is the CONTOUR INTERVAL of this map? Thetopographic map of an island below measures elevations in meters and has a scale of 1cm = 2 km (1) 40 m (2) 10 m (3) 0 m (4) 20 m Which point on this map has an elevation of 73 m? A

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