Improving Earth’s Magnetic Field Measurements by Numerical Corrections of Thermal Drifts and Man-Made Disturbances

Figure 11

The original (red) and cleaned (black) KEL data compared to the aligned BDV data (5 minutes shown). (a) NS-y component, (b) EW-x component. The 15:42 (left) peak is not being well compensated, since it occurred when two cars were passing in adjacent lanes and our model fails to find the correct solution. The small uncompensated peaks (about 15:46) did not fit the gradient threshold and/or result tests (see text).

(a)

(b)