2019
DOI: 10.1029/2019pa003589
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Evaluating the Extent of North Atlantic Deep Water and the Mean Atlantic δ13C From Statistical Reconstructions

Abstract: Benthic 13 C is often used to infer past changes in ocean circulation, though the interpretation of this proxy is difficult due to data scarcity and uncertainties. We present two methods for reconstructing the 13 C signal of North Atlantic Deep Water (NADW) and Antarctic Bottom Water and calculating the average oceanic 13 C values for the Atlantic Ocean based on 13 C from benthic foraminifera. The two simple statistical models are described and tested for the Holocene and the Last Glacial Maximum. The first st… Show more

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Cited by 2 publications
(2 citation statements)
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“…3). Given the uncertainties in the age models, this increase could be associated with the penultimate deglaciation (Oliver et al, 2010;Menviel et al, 2019). To avoid the relatively low δ 13 C values which could be associated with the penultimate deglaciation and glacial inception, we focus our analysis on the period 125-120 ka BP (Fig.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…3). Given the uncertainties in the age models, this increase could be associated with the penultimate deglaciation (Oliver et al, 2010;Menviel et al, 2019). To avoid the relatively low δ 13 C values which could be associated with the penultimate deglaciation and glacial inception, we focus our analysis on the period 125-120 ka BP (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…We use simple statistical regression models to reconstruct NADW and AABW separately with a quadratic-with-depth and linear-with-latitude equation following the method of Bengtson et al (2019). For consistency, the regression algorithm only includes records from cores that span both the LIG and mid-Holocene and uses a weighted least squares approach, where the Peterson et al (2014).…”
Section: Reconstruction Of the Lig Atlantic Meridional Overturning Circulationmentioning
confidence: 99%