Current Distribution Models for the Earths Main Magnetic Field: A Discrete Inverse Theory Approach

Current source models for the Earths main geomagnetic field are calculated employing conventional discrete inverse theory methods. Source structures are spherical surfaces placed at the surface of the Earths core, and at the surface of the Earth. The data set consists of measurements taken by the MAGSAT satellite in 1979. The resulting current distributions are discussed in relation to dipole and current loop models.