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CE / AL Geography. Map Reading Skills and Techniques. Major skills and techniques. Read and interpret variety of maps at different scales (1:20 000 and 1:5 000). Interpret ground and aerial photographs to extract and analyze geographical information from them.

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ce al geography

CE / AL Geography

Map Reading Skills and Techniques

major skills and techniques
Major skills and techniques
  • Read and interpret variety of maps at different scales (1:20 000 and 1:5 000).
  • Interpret ground and aerial photographs to extract and analyze geographical information from them
what kinds of basic skills have been tested before
What kinds of basic skills have been tested before?
  • Drawing a transect (AL-98, 04)
  • Drawing a sketch map (AL-99, 03, 05 + CE-05)
  • Drawing a cross-section (AL-01, 02)
  • Giving map evidence (AL-98, 99, 02, 03, 04, 05, 06 + CE-05, 06)
land use transect
(Land-use) transect
  • Shows the land-use distribution
  • Along a line
  • Between 2 points
types of land uses in urban landscapes
Types of land uses in urban landscapes
  • R – residential, e.g. houses
  • C – commercial, e.g. offices
  • I – industrial, e.g. factories
  • T – transportation, e.g. railway station
  • In – institutional, e.g. schools
  • Rc – recreational, e.g. parks
  • V – vacant / open space, e.g. construction site
types of land uses in rural landscapes
Types of land uses in rural landscapes
  • C – cultivated land
  • W – woodland
  • G – grass / shrubs
  • V – vacant / abandoned land
how to draw a transect
How to draw a transect?
  • Identify the 2 points.
  • Connect the 2 points with a straight line.
  • Use a strip of paper and mark the land uses on it.
  • Add a key and a title.

A land-use transect from A to B

A

B

Rc

R

T

R

W

example draw a land use transect from point a to point b shown in the photograph al 2004 4 marks
Example: Draw a land-use transect from point A to point B shown in the photograph. (AL-2004) (4 marks)

A land-use transect from A to B

B

A

W

T

O

R

I

F

O

Key:

I: industrial

O: open space

T: transportation

R: residential

W: woodland

F: waterfront

extract information from both photograph and the map
Extract information from both photograph and the map.

Yau Tong Estate

MTR Station

Factories / warehouses

Construction sites / open space for car parks

points to pay attention when drawing a transect
Points to pay attention when drawing a transect
  • The length of the transect must be the same as the distance between 2 points.
  • The land use types instead of the objects should be mentioned, e.g. write institutional land use rather than school / educational land use.
  • You should have a clear concept about various types of land uses.
sketch map
Sketch map
  • A simplified map
  • Showing specific information, e.g. transport routes, contour or land use
  • With the same / different scale from the map extract
  • With a title, a key and direction.
slide12
Example: Draw a sketch map to show the major land uses in grid squares 1086, 1087, 1088, 1186, 1187 and 1188. (AL-2003) (4 marks)
points to pay attention when drawing a sketch map
Points to pay attention when drawing a sketch map.
  • Read the questions carefully if the sketch maps are drawn in the same or a different scale from the map extract.
  • Include only information as required by the question.
  • Sketch the features roughly.
  • Shade the land use in a simple way.
  • Add a key and a title.
cross section river profile
Cross section / River profile
  • Horizontal scale (HS) of the cross section must be the same as the map extract.
  • Vertical scale (VS) depends on vertical exaggeration (VE).
  • If the HS is 1:20000, with VE of 4 times, the VS should be 1:5000.
  • The vertical interval of the cross section must refer to the map.
points to pay attention when drawing a cross section
Points to pay attention when drawing a cross section.
  • Clearly identify the 2 points.
  • Read the height of the 2 points carefully.
  • If several points have the same height, don’t draw a straight horizontal line to connect all points. Decide what parts o f the line are ups and downs.
  • Mark the features clearly by using a key, e.g. R – river.