Sensors

17

Freescale Semiconductor

MAG3110

6

Geomagnetic Field Maps

The magnitude of the geomagnetic field varies from 25

μT in South America to about 60 μT over Northern China. The

horizontal component of the field varies from zero at the magnetic poles to 40

μT.

These web sites have further information:

http://wdc.kugi.kyoto-u.ac.jp/igrf/

http://geomag.usgs.gov