Flatirons Geomagnetic Services combines high-quality space-based measurements from satellites with local survey measurements taken by aircraft and ships to build state-of-the-art magnetic field models of the crustal anomalies in the region of interest.
FGS-IFR(In-Field Referencing)
![](https://flatironsgeomag.com/wp-content/uploads/2017/06/fgs-2-1024x427.jpg)