Arctic bottom water temperatures and ocean circulation were also reconstructed for the past 50,000 years using Mg/Ca ratios and faunal analyses. Fig 2A shows the location of sediment cores used in the paleoceanographic reconstruction of the last 50,000 years using ostracode faunal assemblages. 2A also shows the generalized circulation of the Atlantic Layer in red. The blue arrows depict brine formation on the continental shelves. Figure 2B depicts the Arctic-Nordic Sea temperature section 1 to 2 in Figure 2A from Ocean Data View. Bathymetry approximate.

Figure 2.
Figure from Poirier et al., 2012.
Base map: International Bathymetric Chart of the Arctic Ocean (IBCAO)