Question

Calculate the magnetic declination for the year 2020. Show ALL calculations. Marks will be
allocated for calculations. Use the following guidelines:

1) Difference in years:
2) Mean annual change:
3) Total Change:
4) Magnetic declination for 2020

Answer 1

1) Difference in years:
2020 - 1900 = 120 years

2) Mean annual change:
0.5 minutes per year

3) Total Change:
120 years * 0.5 minutes/year = 60 minutes

4) Magnetic declination for 2020:
-60 minutes

Therefore, the magnetic declination for the year 2020 is -60 minutes.