Latitude and Longitude

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Latitude and Longitude
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Latitude lines run east/west but they measure
north or south of the equator (0) splitting the
earth into the Northern Hemisphere and Southern
Hemisphere.
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Latitude North Pole South
Pole
90
80

• Lines of latitude are numbered from 0 at the
  equator to 90 N.L. at the North Pole.

70
60
50
40
30
20

• Lines of latitude are numbered from 0 at the
  equator to 90 S.L. at the South Pole.

10
10
20
30
40
50
60
70
80
90
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LatitudeThe North Pole is at 90
NThe South Pole is at 90 S

• 40 N is the 40 line of latitude north of
  the equator.
• 40 S is the 40 line of latitude south of
  the equator.

• The equator is at 0 latitude. It is neither
  north nor south. It is at the center between
  north and south.

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Longitude Lines of longitude begin
at the Prime Meridian.

• 60 E is the 60 line of longitude east of
  the Prime Meridian.

• 60 W is the
• 60 line of
• longitude west
• of the Prime
• Meridian.
• The Prime Meridian is located at 0. It is
  neither east or west

W
E
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Longitude
180
N
North Pole
E
W
West Longitude
East Longitude
PRIME MERIDIAN
S

• Lines of longitude are numbered east from the
  Prime Meridian to the 180 line and west from the
  Prime Meridian to the 180 line.

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Prime MeridianThe Prime Meridian (0) and the
180 line split the earth into the Western
Hemisphere and Eastern Hemisphere. Prime
Meridian

• Western Hemisphere

• Eastern
  Hemisphere
• Places located east of the Prime Meridian
  have an east longitude (E) address. Places
  located west of the Prime Meridian have a west
  longitude (W) address.

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INTERNATIONAL DATE LINE180

• SEPARATES 2 CALENDAR DAYS.
• America to Asia gain a day
• Asia to America lose a day

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By combining latitude and longitude, any location
can be pinpointed
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A locations coordinates(____ N or S, ____ E
or W)
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ApplicationN

• W E
• S
• North America is in the Northern Hemisphere
  because it is north of the Equator. North America
  is in the Western Hemisphere because it is west
  of the Prime Meridian.

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Fractions of a Degree

• 1 degree 60 minutes or 1 minute is 1/60th of a
  degree
• Use minutes if location is not directly on the
  latitude/longitude line
• Written ----- Degree/minute XX xx compass
  direction

30 is half-way between degrees
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LONGITUDE AND TIME

• The world rotates (spins) 360 in 24 hours.
• 360 / 24 hours 15 per hour
• The world has 24 time zones, each l5 apart.
• THERE IS A 1 HOUR TIME DIFFERENCE FOR EVERY
  15 OF LONGITUDE

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Greenwich, England is the logical starting point
for time zones

• The world rotates west to east (counterclockwise),
  time zones to the east are ahead of the those
  time zones to the west

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ANOTHER CHEESY SAYING

• EAST INCREASE
• Time is forward to all places to the east
• WEST LESS
• Time is backward to all places to the west

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East Increase West Less(1 hr per l5)
If it 9 p.m. at Position D, what time is it at
position C? Position B? If it is 1 p.m. at
Position X, at which location is the time 5 p.m.
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Earth rotates west to east Solar time is based
on the position of the sunNIGHT IS FALLING ON
EARTH
Look at the East Coast of the United States. The
lights are already lit. California the sun is
still visible.
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This pictures shows AMERICAN CITIES at night.
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Saguenay
Sept-Iles
Thunder Bay
Toronto
St.John
Ottawa
Its still daylight in California
Québec
Montréal
Those light are Boston, New York, Philadelphia
and Washington.
Detroit
Dallas
Puerto Rico
Miami
Houston
Mexico City
Havana
Port-au-Prince
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NIGHT IS FALLING ON EARTH. Look at Paris and
Barcelona, the lights are already lit, meanwhile
in London, Lisbon and Madrid the sun is still
visible. Looking south, we can see the islands
in the middle of the ocean. We have a perfect
view of the British Islands, Iceland and Canada.
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England
Iceland
Atlantic Ocean
France
Spain
Italy
AFRICA