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Progress in Earth and Planetary Science
Fig. 13 | Progress in Earth and Planetary Science

Fig. 13

From: δ18O and SST signal decomposition and dynamic of the Pliocene-Pleistocene climate system: new insights on orbital nonlinear behavior vs. long-term trend

Fig. 13

Late Pliocene-Pleistocene cross plot between trend components of global ΔSST stack and tropical SST at Site 846 (a). Cross plots between the ΔSST stack and b δ18O, c boron-based, and d alkenone-based pCO2 SSA-components. Cross plots between the converted ΔSST stack (°C by means of the function in a) and e boron-based pCO2 and f alkenone-based pCO2 trends. The long-term trend components are clearly linked, whereas orbital components are unrelated to the long-term trends. Proxy data: composite atmospheric boron-based pCO2 proxy from ODP Sites 668B-999A (Hönisch et al. 2009; Bartoli et al. 2011), atmospheric alkenone-based pCO2 and SST proxies from ODP Site 999A (Seki et al. 2010), alkenone-based SST proxy from ODP Site 846 (Herbert et al. 2010b), LR04 δ18O stack (Lisiecki and Raymo 2005b), and global ΔSST stack (Martinez-Boti et al. 2015)

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