Figure 6

Empirical orthogonal function (EOF) decomposition of coastline changes from 1987 to 2017. Coastline changes deconstructed into orthogonal components. Black dash–dot lines represent estuary axis used in EOF decomposition. (a) Extracted coastlines for years 1987 to 2017. (b) First-mode EOF variance. Base coastline was created by averaging these coastlines over period. (c) Second-mode EOF variance on base coastline. (d) Third-mode EOF variance on base coastline. Second- and third-mode variances account for 81–85% of total variances excluding first-mode variance. Figure was created using MATAB version R2006b from Mathworks Inc.