Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/12427
DC Field | Value | Language |
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dc.date.accessioned | 2019-03-15T08:17:49Z | en |
dc.date.available | 2019-03-15T08:17:49Z | en |
dc.date.issued | 2018-06-29 | en |
dc.identifier.uri | http://hdl.handle.net/2122/12427 | en |
dc.description.abstract | The production of cosmogenic isotopes offers a unique way to reconstruct solar activity during the Holocene. It is influenced by both the solar and Earth magnetic fields and thus their combined effect needs to be disentangled to infer past solar irradiance. Nowadays, it is assumed that the long-term variations of cosmogenic production are modulated by the geomagnetic field and that the solar field dominates over shorter wavelengths. In this process, the effects of the non-dipolar terms of the geomagnetic field are considered negligible. Here we analyse these assumptions and demonstrate that, for a constant solar modulation potential, the geomagnetic field exerts a strong modulation of multi-centennial to millennial wavelengths (periods of 800 and 2200 yr). Moreover, we demonstrate that the non-dipole terms derived from the harmonic degree 3 and above produce maximum differences of 7% in the global average radiocarbon production rate. The results are supported by the identification, for the first time, of a robust coherence between the production rates independently estimated from geomagnetic reconstructions and that inferred from natural archives. This implies the need to review past solar forcing reconstructions, with important implications both for the assessment of solar-climate relationships as well as for the present and future generation of paleoclimate models. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Scientific reports | en |
dc.relation.ispartofseries | / 8 (2018) | en |
dc.title | Multi-centennial fluctuations of radionuclide production rates are modulated by the Earth's magnetic field | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.description.pagenumber | id 9820 | en |
dc.subject.INGV | 04.05. Geomagnetism | en |
dc.identifier.doi | 10.1038/s41598-018-28115-4 | en |
dc.description.obiettivoSpecifico | 1A. Geomagnetismo e Paleomagnetismo | en |
dc.description.journalType | JCR Journal | en |
dc.relation.eissn | 2045-2322 | en |
dc.contributor.author | Pavón-Carrasco, Francisco Javier | en |
dc.contributor.author | Gómez-Paccard, M. | en |
dc.contributor.author | Campuzano, Saioa A. | en |
dc.contributor.author | González-Rouco, Jesús Fidel | en |
dc.contributor.author | Osete, M. L. | 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 | Geosciences-Rennes, CNRS, UMR 6118, Universite de Rennes 1, Campus de Beaulieu, Rennes, Cedex, France | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Univ. Complutense Madrid (Spain) | - |
crisitem.author.orcid | 0000-0001-7047-5704 | - |
crisitem.author.orcid | 0000-0001-7090-6797 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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s41598-018-28115-4.pdf | 6.54 MB | Adobe PDF | View/Open |
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