Advanced Level Geography Revision: Map Work & Statistical Techniques

Mastering practical geography requires strong spatial analysis skills for cartography and precision in quantitative calculations. Test your practical data processing skills with these structural problems from image_237b9d.jpg.

SECTION A: Map Work & Basics of Modern Cartography

Question 1 (Topographic Map Analysis)

Study the topographic map extract of LIMBE and its Environs at 1:50,000 reference parameters from image_237b9d.jpg and tackle the following problems:

• (a) (i) Describe the difficulties caused by the relief in the development of the eastern portion of the map area. (4 marks)

• (b) (i) Calculate the detour index of the road connecting Limbe Town at grid square 2390 to Bonjongo, besides spot height 600m. (3 marks)

• (c) (i) Which natural hazard is the coastline from the Oil Refinery to Ambas bay vulnerable to? Justify your answer using evidence from the map only. (2 marks)

• (d) (i) Comment on two evidences on the map to show that Limbe occupies a strategic position for its rapid economic development. (4 marks)

SECTION B: Statistical Techniques

Question 2 (Quantitative Data Analysis)

Study Table 1 in image_237b9d.jpg showing hypothetical data on the relationship between distance from the city centre and the intensity of noise pollution in an industrialized country.

• (a) (i) Complete Table 1 by filling in all the missing data values for Rank Distance, Rank Noise, Difference (d), and Square of the difference (d^2). (10 marks)

• (a) (ii) Calculate the correlation between distance from the city centre and the intensity of noise pollution using the Spearman’s rank correlation formula:

  Rs = 1 – (6 * Sum(d^2)) / (n^3 – n)

  Where Rs is the Spearman’s rank correlation coefficient, Sum(d^2) is the sum of difference squared (given as 307 in the table total), and n is the total number of items. (6 marks)

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