Any regional effects on the magnetic readings are removed using the International Geomagnetic Reference Field correction, and the values are displayed on a strip-chart showing the change in magnetic values over time.
(Any regional effects on the magnetic readings; are removed; ) (the values; are displayed; on a strip-chart) (a strip-chart; showing; the change in magnetic values over time)
Any regional effects on the magnetic readings the values a strip-chart
are removed are displayed showing
on a strip-chart
the change in magnetic values over time