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

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Presentation on theme: "Latitude & Longitude. Not a lie, just s t r e t c h i n g the truth. All maps are really projections, showing a round Earth as flat."— Presentation transcript:

1 Latitude & Longitude

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

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

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

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

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10 77) A Fossil called Asfaltomylos patagonicus was 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] 44 o S & 67 o W

11 40 o N, 50 o E

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14 All Longitudes in NY are West All Latitudes in NY are North Prime Meridian

15 Which New York State location has a latitude of approximately 42°North? (1) Jamestown (3) Oswego (2) Plattsburgh (4) New York City

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

17 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

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

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

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22 Latitudes and Longitudes from Space

23 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

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

26 15 o / hr ! 12 PM (Noon) Later (past noon) Earlier (not yet noon) West is earlier (AM), and east is later (PM)! If it is 12 PM (noon) at 0 o, what time is it at 180 o on the other side of the Earth? 12 AM (Midnight)!

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30 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

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

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

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

34 How do you find Polaris?

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

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

37 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

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

39 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?

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

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

42 Isolines

43 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?

44 Practice isolines with this link!

45 Topographic Maps

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

47 When is it a hill and when is it a hole in the ground?

48 When is it steep?

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

51 What is the elevation of points: A B C DEDE 70m 20m 30m 10m -10m (between 0m & -20m!) Elevations are in meters.

52 The diagram shows a portion of a topographic map. Based upon what you see the value of Point A must be (1) Greater than Point B (2) Equal to Point B (3) Less than Point B (4) There is not enough information provided

53 What is the value of Point A if the contour interval is 25 m? (1) 125 m (2) 100 m (3) 75 m (4) 65 m C How about Point C? 60 m (51 – 74 m)

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55 In which compass direction does the water flow in Long Creek?

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58 78. What is the elevation at point B? N M KA 10 m 50 m 20 m 15 m 10 m

59 78. Which direction does Copper Creek flow? How do you know?

60 The topographic map below shows a lake and two rivers. In which direction does each of the rivers flow? (1) The Sapphire River and the Garnet River both flow east. (2) The Sapphire River and the Garnet River both flow west. (3) The Sapphire River flows east and the Garnet River flows west. (4) The Sapphire River flows west and the Garnet River flows east.

61 The air-pressure field map represents a high-pressure system over the central United States. Isobars show the air pressure in millibars (mb). (1) A and C (3) C and D (2) B and E (4) D and E Areas of equal pressure may be found at locations

62 The small map identifies the New York State region shown in the topographic map. What is the elevation of point A on the topographic map? (1) 1,700 ft (2) 1,600 ft (3) 1,650 ft (4) 1,550 ft

63 What is a possible elevation, in meters, of point X? (1) 55 (3) 68 (2) 57 (4) 70

64 The topographic map below shows two hills labeled A and B. The tributary streams labeled X and Y have the same volume of water. Which statement is best supported by the map? (1) Hill A is higher than hill B. (2) Stream X flows faster than stream Y. (3) Hill B is higher than hill A. (4) Stream Y flows faster than stream X.

65 Profiles

66 Review Profiling and Contours at this Link!

67 The map shows sea-level air pressure in millibars for a portion of the eastern coast of North America. The air pressure recorded at point D was most likely (1)1014 mb (3) 1010 mb (2) 1012 mb (4) 1006 mb

68 Point X is what elevation (in meters)? (1) 55 (3) 68 (2) 57 (4) 70 Topographic maps are contour maps of elevations (height) above sea level. The map below is Topographic Elevations are in meters.

69 The air-pressure field map shows a High pressure system over the central U.S. Isobars show the air pressure in millibars (mb). (1) A and C (3) C and D (2) B and E (4) D and E Areas of equal pressure may be found at locations

70 The map here is a topographic map measuring elevations in feet. What is the CONTOUR INTERVAL of this map? (1) 7000 ft (2) 500 ft (3) 7500 ft (4) 100 ft

71 The map here is a topographic map This means it is a contour map of the land. What is the CONTOUR INTERVAL of this map? (1) 7000 ft (2) 500 ft (3) 7500 ft (4) 100 ft

72 Which city in New York State is Cayuta Creek nearest? Elmira or Ithaca

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74 The temperature field map represents surface air temperatures within a park. The location of a lake within the park is indicated. Which graph best represents the temperature profile along a straight line from point A to point B?

75 Which # is in the steepest location?

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77 (3) 75°15' E (2) 43°05' S (4) 75°15' W (1) 43°05' N The approximate latitude of Utica, New York, is…

78 The map of the world above indicates Longitudes and three important reference Latitude lines for the planet Earth. What is the time difference between two locations on this map that are separated by 75 o of Longitude? 1) 0 hours 2) 3 hours 3) 5 hours 4) 7 hours What is the time difference between two locations on this map that are separated by 75 o of Latitude? 1) 0 hours 2) 3 hours 3) 5 hours 4) 7 hours

79 The world map above marks location A, in The Democratic Republic of Congo. 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

80 What is the elevation of Point Y? 7550 ft. (7501 – 7599 ft)

81 The map indicates total rain and snowfall amounts in different parts of New York State. Identify the New York landscape region that has the greatest average yearly amount of precipitation.

82 Match the correct topographic profile with the correct topographic map

83 Which New York State Landscape Region is located at approximately 43 o 10’ N & 78 o W? 1) Taconic Mountains 2) Manhattan Prong 3) Erie-Ontario Lowlands 4) Allegheny Plateau

84 The four streams shown on the topographic maps have the same volume between X and Y. The distance from X to Y is also the same. All the maps are drawn to the same scale and have the same contour interval. Which map shows the stream with the greatest velocity between points X and Y?

85 Toward which direction does the Green River flow? (1) northeast (2) southeast (3) northwest (4) southwest What evidence can be used to determine that the land surface in the northeast corner of the map is relatively flat? (1)a rapidly flowing river (3) the dark contour line labeled 300 (2) a large region covered by water (4) the absence of many contour lines

86 The topographic map below shows part of a stream. In which general direction is the stream flowing? (1) northeast (2) northwest (3) southeast (4) southwest

87 N In which direction does the Tenaya Stream flow? (1) South east (2) South west (3) North east (4) West

88 N Which area on the map appears to have the LARGEST change over the SMALLEST area? (1) South of Point C (2) East of Point X (3) North of Point A (4) West of Point Y

89 The diagram below shows an observer on Earth measuring the altitude of Polaris. What is the latitude of this observer? (1)90° N (3) 43° N (2) 66.5° N (4) 23.5° N

90 If I am at White Plains, NY (41 0 N latitude) and I walk to the North, Polaris will appear to 1) Get higher in the sky 2) Get lower in the sky 3) Move to the East 4) Approach the Prime Meridian


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