Fig. 2: Seasonal variability of waterline position and forcings along the NAWC.
From: Waterline responses to climate forcing along the North American West Coast
a Distributions of the seasonal waterline excursion along the NAWC. Regional distributions of these excursions are shown as histograms. The median seasonal waterline excursion over each region is marked on the histogram as a dotted black line. Seasonal cycles of demeaned wave power Pwave (b), wave direction θwave (c), MMSL (d), and waterline position (e) as functions of the alongshore position along the NAWC. f shows the Pearson correlation coefficients between seasonal cycle of waterline position and forcings, gathered per subregion. Wave power Pwave is calculated as \({P}_{wave}=\rho g^2{H}_{s}^{2}{T}_{p}/(64\pi )\) where Hs and Tp are the monthly averaged significant wave height and peak wave period, respectively, and provided by ERA5 (ECMWF, 2020101). Correlation significant at a 5% (1%) significance level is marked with “*” ("**''). The background map was generated using Python’s mpl_toolkits.basemap library.
