A tourist visiting Town Hill in Pietermaritzburg requires specific information regarding its location - NSC Geography - Question 2 - 2018 - Paper 2
Question 2
A tourist visiting Town Hill in Pietermaritzburg requires specific information regarding its location.
2.1.1 State the topographic map index/code of Pietermaritzbu... show full transcript
Worked Solution & Example Answer:A tourist visiting Town Hill in Pietermaritzburg requires specific information regarding its location - NSC Geography - Question 2 - 2018 - Paper 2
Step 1
State the topographic map index/code of Pietermaritzburg.
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Answer
The topographic map index/code of Pietermaritzburg is 2930CB.
Step 2
Determine the grid reference/co-ordinates of Town Hill at point N in block F7 on the topographic map.
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Answer
The grid reference/co-ordinates of Town Hill at point N in block F7 are:
Latitude: 29°30'56"S
Longitude: 30°21'30"E.
Step 3
The tourist wants to hike the Voortrekker Wagon Hiking Trail in block F6 using a compass. Calculate the magnetic declination for 2018.
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Answer
To calculate the magnetic declination:
Determine the difference in years:
Difference = 2018 - 2016 = 2 years.
Find the mean annual change in declination:
Mean annual change = 9'.
Calculate the total change in declination:
Total change = 2 years × 9' = 18'.
Add this to the previous magnetic declination value:
For 2016, magnetic declination = 24°45'W, thus:
Final Magnetic declination for 2018 = 24°45'W + 18' = 24°03'W.
