Recognising landforms - Wiley · Recognising landforms At rst glance, ... identify whether the land...
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Transcript of Recognising landforms - Wiley · Recognising landforms At rst glance, ... identify whether the land...
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Greystone
River
Recognising landformsAt � rst glance, topographic maps may
appear confusing, as they contain a
lot of information and have their own
language and symbols. Contour lines on a
topographic map join places that are the
same height above sea level. They form
patterns that show the shape of the land.
By examining the contour lines and the
distances between them, it is possible to
identify whether the land is � at or gently
sloping or has steep hills and valleys.
Contour lines represent a three-
dimensional landform on a two-
dimensional map. A skilled user of
topographic maps can recognise the
patterns of these contour lines and
visualise the shapes of landform features.
Some of the more recognisable landforms
are shown in C .
An extensive area of � at land higher than the land surrounding it. Contours surround an area with few or no contours.
A high, round piece of land. Contours form a round or oval shape.
A � nger-like ridge that sticks out from the side of a hill or mountain. Contours are U- or V-shaped, pointing away from high land.
Low land between hills or mountains,usually with a river through it. Contoursform a U or V shape. The bottom of theV or U points upstream.
A steep, almost vertical rocky slope. Contours are very close together, almost on top of one another.
A long, narrow piece of higher ground with sloping sides
An area of low land between two peaks. On maps it is often the lower area between two circular contour patterns.
Contour(contour interval 200 metres)
River
Spot height (in metres)1275
RidgeRound hill
Saddle
Cliff
Valley
Spur
Plateau
DISTINCTIVE CONTOUR PATTERNSCCCCCCCCCCCCCCCCCC
CLIFFFFFFFFFFFFFFFFF
PLATEAU
An extensive area of �
AAAAAAAAAAAA ROUND HILL
A high, round piece of land. Contours form a
BBBBBBBBBBBB
SPURHHHHHHHHHHHH
SADDLEDDDDDDDDDDDDDDD
RIDGEEEEEEEEEEEEEEEE
VALLEYGGGGG GGGGGGGG GGGGGGGGGGGGGGGJaca
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ILLS
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79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
0 2 4 6 8 10 12 14kilometres kilometres
SCALE 1 : 100 000
1 Examine the table below. Match the landform in the � rst column
with the correct description in the second column.
Landform Description
Gentle slope The lower area between two circular contour patterns
Valley Long, narrow piece of land. Contour heights descend on either side.
Spur Contours form circles.
Steep slopes or a cliff Contours form a V shape pointing uphill.
Small hill Contours form a V shape pointing downhill.
Saddle Flat area surrounded by contours that are close together
Plateau Contours are close together.
Ridge Contours are far apart.
2 Examine I and complete the following.
(a) What type of landform is represented in AR8740 and AR8741?
(i) Spur (ii) Cliff (iii) Saddle (iv) Ridge
(b) A similar landform is located in which of these places?
(i) AR7941 and AR7942 (iii) AR9037 and AR9136
(ii) AR8335 and AR8236 (iv) AR9636 and AR9637
(c) What type of landform is represented by the contour pattern at
AR8634 and AR8535?
(i) Spur (ii) Cliff (iii) Saddle (iv) Ridge
(d) What type of landform is represented by the contour pattern at
AR9736?
(i) Spur (ii) Round hill (iii) Valley (iv) Cliff
(e) Find another similar pattern on the map and give its area
reference.
(f) What type of landform is represented by the contour pattern at
AR8133?
(i) Valley (ii) Ridge (iii) Hill (iv) Saddle
(g) Give area references for (i) a location on the map that is gently
sloping and (ii) a location that is very steep.
ACTIVITIES
TAMAR VALLEY, TASMANIAIIIIIIIIIIIIIIIIII
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