Open AccessThe 1990.0 magnetic repeat station survey and normal reference fields for Italy
Author(s) -
A. Meloni,
O. Battelli,
Angelo De Santis,
G. Dominici
Publication year - 1994
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-4185
Subject(s) - secular variation , variation (astronomy) , geodesy , field (mathematics) , field survey , geography , geology , physics , astrophysics , mathematics , cartography , geophysics , pure mathematics
A survey of 116 repeat stations of the Italian Magnetic Network was carried out between 1989 and 1992. We describe the characteristics of the selected network repeat station sites, the characteristics of the measuring equipment, the data reduction procedure and the analysis in terms of normal field, data mapping and secular variation. Together with the values from our previous campaigns, we also determined, for all elements, the normal fields of secular variation. The new repeat station data are listed. Results, maps and normal fields are discussed with respect to previous work and future survey plans