Figure 1. Long-term changes in Sea Surface Temperature in the North Atlantic since 1860. a. Spatial distribution of eigenvector 1. b. First
Principal Component time-series corresponding with eigenvector 1. c. Spatial distribution of eigenvector 2. d. Second Principal Component timeseries
corresponding with eigenvector 2. Marine biological time-series used in the biological analysis are superimposed on Figure 1.d. Light lines:
annual means, dark lines: 5 year running means.