Total Magnetic Intensity measures the Earth's magnetic field
strength. It highlights large magnetic bodies like iron ore deposits and mines.
Total Magnetic Intensity (80m)
30%
Reduction to Pole corrects for magnetic inclination, repositioning
anomalies directly over their sources. Best for identifying large magnetic bodies
like iron ore mines.
Reduction to Pole (80m)
30%
First Vertical Derivative enhances edges and shallow magnetic
features. This makes smaller objects like shipwrecks easier to spot against the
background.
First Vertical Derivative (80m)
30%
High Resolution First Vertical Derivative derived from the 20m
gridded dataset. Due to its size this layer has been preprocessed as an RGB layer
optimised for identifying shipwrecks