期刊
ARCHAEOMETRY
卷 51, 期 -, 页码 309-322出版社
WILEY
DOI: 10.1111/j.1475-4754.2008.00400.x
关键词
ARCHAEOMAGNETIC DATING; GEOMAGNETIC SECULAR VARIATION; GEOMAGNETIC FIELD MODELLING
资金
- NERC [NE/D002362/1]
- NERC [NE/D002362/1] Funding Source: UKRI
- Natural Environment Research Council [NE/D002362/1] Funding Source: researchfish
We introduce a new approach to producing secular variation curves for archaeomagnetic dating, using global geomagnetic field modelling techniques. Using published palaeosecular variation curves for five European locations as input, and a previous global model for regularization, we produce a model for the period ad 0-1900, which reproduces the input curves within their 95% confidence intervals, and successfully fits data from other regions in Europe. Our global model performs as well as a previous regional model, but additionally ensures consistency with physical constraints. We show that the curves currently used for dating are not mutually consistent, and therefore that in the future this new approach will provide more reliable curves for archaeomagnetic dating.
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