Figure 1.

Map of the North Atlantic region showing the major surface ocean currents¹³ (colour of arrows indicate temperature; red = warm, blue = cold, yellow = mixture) and location of sites referred to in Fig. 3a–f. HG = Helheim Glacier; KG = Kangerdlugssuaq Glacier; JI = Jakobshavn Isbræ. Magenta circles show location of sediment cores discussed in the text and shown on Figs 2 and 3. The magenta box delineates the extent of the inset map. Bathymetric data are from IBCAO v3⁵⁶. Terrestrial topographic data are from the ETOPO1 Global Relief model⁵⁷ and the GIMP surface digital elevation model⁵⁸. The inset map of Sermilik Fjord shows the location of sediment core ER07 and the local bathymetry⁵⁹. The figure was created using ArcMap 10.1 (http://desktop.arcgis.com/en/arcmap/) and Adobe Illustrator CS6 ( http://www.adobe.com/products/illustrator.html).