Fig. 3: Waterline change anomalies along the NAWC during 1997–2022.
From: Waterline responses to climate forcing along the North American West Coast
a Distribution of interannual waterline variability calculated as the the standard deviation of the anomalies between 1997–2022. b–f Regionally averaged waterline position anomalies along the b PNW, c NCA, d SCA, e BC, and f BCS regions. g Heatmap of Pearson correlations between regionally averaged waterline anomalies and CP, EP100 and MEI38 indices. h Heatmap of Pearson correlations among the climate indices. i–k Time series of CP, EP and MEI indices between 1997–2022. The three major El Niño events that occured between 1997 and 2022 are highlighted in gray on time series (b–f, i–k). Correlation significant at a 5% (1%) significance level are marked with “*” ("**''). The background map was generated using Python’s mpl_toolkits.basemap library.
