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
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.