Fig. 5: Temporal variability of the North Atlantic subpolar gyre properties.
From: Subpolar gyre decadal variability explains the recent oxygenation in the Irminger Sea
a Winter North Atlantic Oscillation (NAO) index anomalies from 1990 to 2018, and winter Wind Stress Curl (WSC; N m−2) from 1990 to 2018 (black curve) in the Irminger Sea. b Monthly Mixed Layer Depth (MLD; black curve) and Mixed Layer Temperature (MLT; ∘ C, blue curve) averaged in the Irminger Sea region from 2002 to 2018 computed from ISAS. The uncertainty in the mean MLD is computed as one standard deviation around the mean value. c The black curve represents the annual Sea Level Anomalies (SLA), detrended and offset by its mean (2.7 cm). The horizontal lines show the anomaly of the relative vorticity at 1000 m and average over 4-years periods. The three periods (P1, P2, and P3) discussed throughout the manuscript are indicated with arrows on top of the figure.
