The WDC SEG maintains extensive data and documentation compilations in a number of geophysical and environmental disciplines.
Data come from surface, aircraft and satellite platforms.
The WDC is involved in cooperative programs with scientists around the world. See below for the current projects . The IGRF 2000 was released in December 1999. You can learn more about the IAGA Working Group which adopts the IGRF and download the software and coeffiecients. The rsted Satellite Mission.