NSC Geography Mapwork calculations: Refer to the topographic map and

Question

Refer to the topographic map and the orthophoto map.

3.1.1 The contour interval of the orthophoto map is (5 m/20 m). (1 x 1)

3.1.2 Which vertical exaggeration would give the most detailed indication of the landforms on a cross-section?
A. 2 times
B. 5 times
C. 10 times
D. 20 times

3.1.3 Complete the grid reference/coordinates of spot height 114 in block C3 on the topographic map. Write down only the information that is not included in the question.
(a) 29° 1' __ S
(b) 04 (1°) __ 47' (45° – 49')

3.1.4 Calculate the average gradient between F and G.
Use the following information:
Vertical interval (VI): 119 m – 80 m = 39 m
Formula: Average gradient (AG) = $ \frac{Vertical Interval (VI)}{Horizontal equivalent (HE)} $

3.1.5 Determine if the gradient between (F to G) is steeper or gentler than (H to I).

Refer to the topographic map.

3.2
Refer to J in block D4 on the topographic map.
3.2.1 Is the settlement pattern at J dispersed or nucleated? (1 x 1)
3.2.2 State ONE factor that favored farming in this area. (1 x 1)

Refer to residential area K in block E3 on the topographic map and the photograph of the same area below.
3.2.3 Area K is a (high/low)-income residential area. (1 x 1)
3.2.4 Give evidence from the topographic map and/or photograph to support your answer to QUESTION 3.2.3. (1 x 2)
3.2.5 How does the spacing of the contour lines indicate that residential area K is built on steep/hilly land? (1 x 1)
3.2.6 How did the steep/hilly land influence the type of street pattern in this area on the topographic map? (1 x 2)

Refer to the orthophoto map.
3.2.7 Refer to Canalandis (6) in block A5 on the orthophoto map and state ONE situation factor that influenced the location of this industrial area. (1 x 1)

Refer to the Hazelmere Dam in block A1 and an enlarged extract of the topographic map below.
3.2.8 Name ONE tertiary activity that is associated with the Hazelmere Dam. (1 x 1)
3.2.9 How does this tertiary activity (answer to QUESTION 3.2.8) contribute to the economy of Verulam? (1 x 2)

GEOGRAPHICAL INFORMATION SYSTEMS (GIS)
Refer to the block below representing block D5 on the topographic map.
3.3.1 Identify the following:
(a) Human-made polygon (area) feature (2 x 1)
(b) Natural feature (1 x 1)

3.3.2 The TWO features (answer to QUESTION 3.3.1) represent (vector) data. (1 x 1)

Refer to blocks A3 and A4 on the orthophoto map.
3.3.3 (a) What evidence indicates that buffering is taking place along the Midoti River? (1 x 1)
(b) Explain why it was necessary to buffer the Midoti River. (1 x 1)

Refer to blocks B4 and B5 on the topographic map.
3.3.4 Identify the infrastructure data layer that creates inland links for the Durban TradePort ID2? (1 x 1)
3.3.5 How did the topography data assist in determining the location of the Durban TradePort ID2? (1 x 2)

Refer to the topographic map and the orthophoto map - NSC Geography - Question 3 - 2022 - Paper 2

Worked Solution & Example Answer:Refer to the topographic map and the orthophoto map - NSC Geography - Question 3 - 2022 - Paper 2

3.1.1 The contour interval of the orthophoto map is?

3.1.2 Which vertical exaggeration would give the most detailed indication of the landforms on a cross-section?

3.1.3 Complete the grid reference/coordinates of spot height 114:

3.1.4 Calculate the average gradient between F and G.

3.1.5 Determine if the gradient between (F to G) is steeper or gentler than (H to I).

3.2.1 Is the settlement pattern at J dispersed or nucleated?

3.2.2 State ONE factor that favored farming in this area.

3.2.3 Area K is a (high/low)-income residential area.

3.2.4 Give evidence from the topographic map and/or photograph to support your answer to QUESTION 3.2.3.

3.2.5 How does the spacing of the contour lines indicate that residential area K is built on steep/hilly land?

3.2.6 How did the steep/hilly land influence the type of street pattern in this area on the topographic map?

3.2.7 Refer to Canalandis (6) in block A5 on the orthophoto map and state ONE situation factor that influenced the location of this industrial area.

3.2.8 Name ONE tertiary activity that is associated with the Hazelmere Dam.

3.2.9 How does this tertiary activity contribute to the economy of Verulam?

3.3.1 Identify the following:

3.3.2 The TWO features (answer to QUESTION 3.3.1) represent?

3.3.3 (a) What evidence indicates that buffering is taking place along the Midoti River?

3.3.3 (b) Explain why it was necessary to buffer the Midoti River.

3.3.4 Identify the infrastructure data layer that creates inland links for the Durban TradePort ID2?

3.3.5 How did the topography data assist in determining the location of the Durban TradePort ID2?

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