PHYSICAL GEOGRAPHY Geographic Grid

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PHYSICAL GEOGRAPHYGeographic Grid

• Chapter 2
• C.J. Cox

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Longitude
GRID
GEOGRAPHIC
Latitude
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GEOGRAPHIC GRID

• Equator - A great circle that divides the globe
  into two equal halves or hemispheres of north
  and south. Located at 0 latitude
• North and South Poles - located at right angles
  or 90 from the plane of the equator.

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Latitude - angular measurement north or
south of the equator

Longitude
GRID
GEOGRAPHIC
Latitude
N
s
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Longitude
w
E
GRID
GEOGRAPHIC
Longitude- angular measurement east or west of
England
Latitude
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Meridians are arcs used to




indicate longitude
GRID
GEOGRAPHIC
Parallels are circular lines used to indicate
latitude
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GEOGRAPHIC GRID

• Prime Meridian The meridian, designated as 0 E,
  W longitude, that passes through the Royal
  Observatory at Greenwich, England.
• International Date Line An arc that follows
  180 longitude E,W. When crossing the date
  line, the calendar is turned forward or backward
  one day, depending on direction of travel.

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MAPS

• Map a flat representation of a globe
• Projection The system used to transfer
  locations from Earths surface to a flat map.
• Scale The relationship between the size of an
  object on a map and the actual size of the same
  feature on Earths surface.

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SCALE

• Scale the relationship between units on the map
  and actual distance on the ground
• Written Scale one inch equals one mile
• Linear Scale ----------------------------
• Ratio Scale 163,360

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GEOGRAPHIC GRID

• Latitude Angular measurement north or south
  of the equator (0 N,S).
• Longitude Angular measurement east or west of
  England (0 E, W) also known as the prime
  meridian.

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GEOGRAPHIC GRID

• Parallel Circles drawn around the globe
  parallel to the equator that indicate latitude.
• Meridians Arcs drawn on a globe between the
  North and South poles that indicate longitude .

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LOCATION

• Place Names
• labels for locations
• toponyms
• Relative Location
• location relative to other locations
• situation
• Exact Location
• geographic grid (38 N 120 W)
• latitude longitude
• site