Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4742667 | Physics of the Earth and Planetary Interiors | 2006 | 8 Pages |
Abstract
In this short contribution, geomagnetic measurements in Central Africa made by Capelo and Ivens – two Portuguese explorers – during the years 1877 and 1885 are provided. We show the scarce number of geomagnetic observation in Africa compiled until now. These Portuguese explorers performed a considerable amount of measurements of geomagnetic declination (44 measurements), inclination (50) and horizontal component (50) of the geomagnetic field. We compared the results attained by these keen observers with those derived from the global geomagnetic model by Jackson et al. [Jackson, A., Jonkers, A.,Walker, M., 2000. Four centuries of geomagnetic secular variation from historical records. Philos. Trans. R. Soc. Lond. 358, 957–990].
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
José M. Vaquero, Ricardo M. Trigo,