Fig. 3. (A) Sea surface temperature anomalies in area A1 (West Greenland) in terms of five-year running means; (B) harmonic model adjusted to the data (r² = 0.58); (C) Modelled West Greenland’s sea surface temperature anomalies based upon harmonic model and extended to 1800 (dashed); data: 1880–1975, no data 1940–1944. based upon harmonic model and extended to 1800 (dashed); data: 1880–2005.