Figure 3.

Core ER07 data from Sermilik Fjord and solar activity. (a) Solar irradiance reconstruction⁶⁰. (b) SST reconstruction from core ER07 in Sermilik Fjord, SE Greenland based on alkenone thermometry (this study). (c) Green line: sand flux in core ER07 used as a proxy for relative iceberg rafting (green shading: reconstruction augmented 300–1900 AD). In order to compare the lower and higher resolution portions of the IRD record, a 32 years binning was applied in data younger than 1900 AD (32 year is the average time resolution of samples older than 1900 AD). The original raw data are shown as a thin grey line. Grey stippled arrows indicate concurrent ER07 SST and ice rafting peaks. Grey bars indicate periods when increased SST concurs with low solar activity.