Fig. 3: Primary pattern of ocean circulation and corresponding principal component timeseries. | Nature Communications

Fig. 3: Primary pattern of ocean circulation and corresponding principal component timeseries.

From: Amundsen Sea circulation controls bottom upwelling and Antarctic Pine Island and Thwaites ice shelf melting

Fig. 3: Primary pattern of ocean circulation and corresponding principal component timeseries.The alternative text for this image may have been generated using AI.

a The leading Empirical Orthogonal Function (EOF) mode (m s−1) of depth-averaged ocean current, explaining about 33% of the total variance. Meridional velocity of the EOF is shaded in colour. b The corresponding principal component (PC1) timeseries (normalised). Magenta and cyan colour bars at the top of the graph indicate high-melt years (1992, 1993, 1994, 2008, 2011, 2012, 2020) and low-melt years (1997, 1999, 2003, 2004, 2013, 2014, 2015), respectively. A 13-month moving average filter is applied prior to the EOF analysis.

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