EarthRef.org Digital Archive (ERDA) -- CALS7K.2 movies centered on longitude 0

Description
This archive contains movies from CALS7K.2 centered on longitude 0. With CALS7K.2 we present a continuous global geomagnetic field models for the recent millennia: CALS7K.2 covering 7000 years from 5000~BC to 1950~AD. The model was determined by regularized least squares inversion of archeo- and paleomagnetic data using spherical harmonics in space and cubic B-splines in time. While data accuracy and dating uncertainties remain limited, reliable low-resolution global models can be obtained. For the first time a significant amount of archeointensity data is used in this kind of global model, allowing the determination of evolution of the dipole strength.

Instructions
The zipped archive CALS7K_2mov2.zip contains 4 movies in mpeg format centered on longitude 0. For details of file names and components shown there refer to the reference paper or main contribution about CALS7K.2.