EarthRef.org Digital Archive (ERDA)
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Global Archeomagnetic Field Model for the Past 7k Years: CALS7K.1
We present a continuous global geomagnetic field models for the recent millennia: CALS7K.1 covering 7000 years from 5000~BC to 1950~AD. This model, however, has meanwhile become superseded by CALS7K.2. If you are not specifically interested in the older version CALS7K.1 please use CALS7K.2 ...
Data Types: movie, map, program source code
Global Archeomagnetic Model for the Past 3k years: CALS3K.2
We present a continuous global geomagnetic field models for the recent millennia: CALS3K.2 covering 3000 years from 1000~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 i ...
Data Types: movie, map, program source code
Global Archeomagnetic Field Model for the Past 7k Years: 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 i ...
Data Types: movie, map, program source code
CALS7K.2 movies centered on longitude 0
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 ...
Data Types: movie
CALS7K.2 northern hemisphere movies centered on the north pole
This archive contains movies from CALS7K.2 for the better resolved northern hemisphere only, centered on the north pole. 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 wa ...
Data Types: movie
Global Declination of the past 7000 years
The animation is showing the development of geomagnetic declination at the Earth's surface between 5000 BC and 1950 AD from global model CALS7K.1. The model is based on globally distributed archeo- and paleomagnetic data. It reflects general trends of field evolution while the spatial an ...
Data Types: movie
CALS7K.2 model coefficients and code
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 i ...
Data Types: program source code
CALS7K.2 dipole moment
This is just the dipole moment prediction from geomagnetic field model CALS7K.2 for the years from 5000~BC to 1950~AD with uncertainty estimates. The resolution of the file is annual, but the actual resolution of the model is in the order of 100 years. The model was determined by regularize ...
Data Types: text
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