- These data are separated into two groups. The first group contains the datasets from London, Paris and Rome, whereas the second group comprises additional data found in the gufm1 global database. All declinations from the second group were estimated using the gufm1 model (see text). Reduced decl. and incl. are the declinations and inclinations after transfer to Paris of the local directions using virtual geomagnetic poles. The data written in italics, and whose names are marked off, were eliminated from the computation in Paris of a new average historical geomagnetic directional variation curve valid for Western Europe
