Anthropogenic and solar forcing in delta C-13 time pattern of coralline sponges
2014 | journal article. A publication with affiliation to the University of Göttingen.
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- Authors
- Madonia, Paolo; Reitner, Joachim
- Abstract
- We present the results of a re-analysis of a previously published carbon isotope data-set related to coralline sponges in the Caribbean Sea. The original interpretation led to the discrimination between a pre-industrial period, with a signal controlled by solar-induced climatic variations, followed by the industrial era, characterized by a progressive delta C-13 negative shift due to the massive anthropogenic carbon emissions. Our re-analysis allowed to extract from the raw isotopic data evidence of a solar forcing still visible during the industrial era, with a particular reference to the 88-year Gleissberg periods. These signals are related to slope changes in both the delta C-13 versus time and the delta C-13 versus carbon emission curves.
- Issue Date
- 2014
- Journal
- Isotopes in Environmental and Health Studies
- ISSN
- 1477-2639; 1025-6016