The project’s current focus is on Arctic Ocean climate during past warm interglacial periods in the Northwind Ridge region north of Point Barrow, Alaska. Figure 4 shows the location of sediment core sites from the Northwind Ridge region of the western Arctic Ocean. These sites contain a complete record of Arctic paleoceanography extending back more than 500,000 years, including warm interglacial periods Marine Isotope Stages 5 and 11.

Figure 4.
Base map: International Bathymetric Chart of the Arctic Ocean (IBCAO)
Further reading, see Phillips and Grantz, 2001