Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11201
DC Field | Value | Language |
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dc.date.accessioned | 2018-03-15T09:00:13Z | en |
dc.date.available | 2018-03-15T09:00:13Z | en |
dc.date.issued | 2017 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11201 | en |
dc.description.abstract | In Italy INGV (Istituto Nazionale di Geofisica e Vulcanologia) has systematically undertaken the task of periodic making measurements of the Earth's magnetic field on a network of more than 110 points (repeat stations), with an average spacing around 55-60 km. Measurements are repeated regularly every 5 years and the last published data reports and magnetic maps, refer to 2010.0, available in Dominici et al, 2012. At that time the report referred to a survey of 131 repeat stations (including 2 observatories, 11 stations in Albania, 3 stations in Corsica and 1 in Malta) carried out between 2009 and 2010, also with the purpose of updating the national magnetic cartography. At the epoch 2012.5 a selection of stations, from the first order Italian Magnetic Network, selected on the basis of the lowest amplitude values of anomaly with respect to a 'normal' field, was repeated. The number of the selected stations amounts to 25, distributed according to an almost uniform national geographical coverage, with an average spacing around 100 km. Secular variation and analytical expressions, such as second order polynomials, in latitude and longitude for all field elements, were determined and coefficients were obtained for the spatial field variation and secular variation. We describe here the characteristics of this reduced network with the data reduction procedure, normal fields and maps, and compare the results with other magnetic field models. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Annals of geophisycs | en |
dc.relation.ispartofseries | 2/60 (2017) | en |
dc.subject | Earth's magnetic field, Geomagnetic map, Magnetic surveys, Magnetic repeat stations, Secular variation, Global and regional models | en |
dc.title | The Italian magnetic repeat station network: results from the 2012.5 ‘Reduced Network’ completion | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | G0219 | en |
dc.subject.INGV | 04.05. Geomagnetism | en |
dc.identifier.doi | 10.4401/ag-7062 | en |
dc.relation.references | Bullard, E.C. (1967): The removal of trend from magnetic surveys, Earth Planet. Sci. Lett., 2, 293-300.Coticchia, A., A. De Santis, A. Di Ponzio, G.Dominici, A.Meloni, M. Pierozzi, M. Sperti, (2001) La Rete Magnetica italiana e la Carta Magnetica d’Italia al 2000.0, Bollettino di Geodesia e Scienze affini, 4, 261-291. Cafarella, L., A. De Santis and A. Meloni (1992a): Secular variation from historical geomagnetic field measurements, Phys. Earth Planet. Inter., 73, 206-221. Cafarella, L., A. De Santis and A. Meloni (1992b): Il Catalogo geomagnetico storico italiano, Pubblicazioni dell'Istituto Nazionale di Geofisica vol. 7, 160 pp. De Santis, A., L. Gaya-Piqué, G. Dominici, A. Meloni, J.M. Torta, and R. Tozzi (2003): ITalian Geomagnetic Reference Field ITGRF: update for 2000 and secular variation model up to 2005 by autoregressive forecasting, Annals of Geophysics, 46, 3, 491-500. Dominici, G., A. Meloni, M. Miconi, M. Pierozzi and M. Sperti (2007): La Rete Magnetica Italiana e la Carta Magnetica d’Italia al 2005.0, Bollettino di Geodesia e Scienze affini,1,1-47. Dominici, G., A. Meloni, A. Di Ponzio, M. Miconi (2012): Italian Magnetic Network and magnetic reference fields at 2010.0, Annals of Geophysics, 55, 6, doi: 10.4401/ag-5411. Haines, G.V. (1990): Regional magnetic field modelling: a review, J. Geomag. Geoel.,42, 1001-1018. IAGA (International Association of Geomagnetism and Aeronomy) Working Group V-MOD (2010): International Geomagnetic Reference Field: the eleventh generation, Geophysical Journal International, 183, 1216-1230. Lanza, R., and A. Meloni (2006): The Earth's Magnetism: An Introduction for Geologists, Springer, 290 pp. Mandea, M. (2004): Reseau magnétique de répétition de la France 2002, Bureau Central de Magnetisme terrestre, Paris, Bullettin n. 20. Meloni, A., O. Battelli, G. Dominici, S. Arca and A. Marchetta (1988): Italian magnetic network at 1985.0, Bollettino di Geodesia e Scienze Affini, 4, 339-350. Meloni, A., Battelli, O., De Santis, A. and Dominici, G. (1994): The 1990.0 magnetic repeat station survey and normal reference fields for Italy, Annali di Geofisica, Vol. XXXVII, N. 5, 949-967. Molina, F., E. Armando, R. Balia, O. Battelli, E. Bozzo, G. Budetta, G. Caneva, M. Ciminale, N. De Florentiis, A. De Santis, G. Dominici, M. Donnaloia, A. Elena, V. Iliceto, R. Lanza, M. Loddo, A. Meloni, E. Pinna, G. Santarato, R. Zambrano (1985): Geomagnetic Survey of Italy. Repeat Stations Network and Magnetic Maps: a Short Report, Annales Geophysicae, 3 (3), 365-368. Newitt, L.R., Barton C.E. and J. Bitterly (1996): Guide for magnetic repeat station surveys, IAGA Working Group, 115. Shepard, D. (1968): A two-dimensional interpolation function for irregularly-spaced data, In: Proceedings 23rd National Conference ACM, ACM, 517-524. Talamo R (1975): Le carte magnetiche d’Italia delle isodinamiche della H e delle isogone dell’Istituto Militare e loro aggiornamento al 1973.0, Bollettino di Geodesia e Scienze Affini, Vol. XXXIV, n.1,p.34. | en |
dc.description.obiettivoSpecifico | 1A. Geomagnetismo e Paleomagnetismo | en |
dc.description.journalType | JCR Journal | en |
dc.relation.eissn | 2037-416X | en |
dc.contributor.author | Dominici, Guido | en |
dc.contributor.author | Meloni, Antonio | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-8871-4328 | - |
crisitem.author.orcid | 0000-0003-1155-401X | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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