EarthRef.org Digital Archive (ERDA) -- A first regional model of the past Earth s magnetic field from Africa for the last 4000 yr

Description
This Matlab software generates the paleosecular variation curves for the geomagnetic field elements given by the SCHAFRICA.DIF.4k regional model.

Instructions
1. Download the file "schafricadif4k.p" from here (O.S. Windows / MacOs / Linux).

2. Put the file in your Matlab directory (e.g. C:\Matlab\work\schafricadif4k\).

3. Execute the program, writing: >> schafricadif4k

4. The program asks you for different options.

5. As results, you will obtain the palaeosecular variation curves for the declination, inclination and intensity elements, as well as the plots and the input archeomagnetic and volcanic database.

6. The columns are: time(yr), latitude, longitude, declination, declination error (1sigma), inclination, inclination error (1sigma), intensity (microT), intensity error (microT, 1sigma).