5.2. Forward Modeling

Here, the code magfor3d_60.exe is used to predict the data for an airborne survey. For simplicity, the magnetic data are predicted on regular grid of data points with a horizontal spacing of 40 m in both the Easting and Northing directions. The flight height is 30 m for all data points. The Earth’s field had an inclination of 65 degrees, a declination of 25 degrees and an intensity of 50,000 nT. Files relevant to this part of the example are in the sub-folder fwd. For this example, we use the model that were created in the example “create model”.

Before running this example, you may want to do the following:

The total magnetic intensity data output by the simulation is shown below.