Figure 3

Detailed comparisons of Big Sur River discharge and CoastSat shoreline positions for six transects in the study area highlighting the years immediately before and after the 2016–2017 fire–flood event. The timing of the Soberanes fire and the highest river flow rates are highlighted with vertical bars. (a) Instantaneous river discharge from 15-min observations at the Big Sur River at Big Sur gauge (USGS streamgage 11143000). (b–g) Shoreline positions for six transects, including the raw CoastSat observations (blue lines), a LOESS-smoothed function through these observations (grey lines), and the mean ± st. dev. of the raw shoreline positions during the intervals before and after the peak in water discharge (pink boxes; see “Methods”). Also shown are the timing of the midpoint of the initiation of accretion (red symbols; see “Methods”). Note that the widest observation for the 100 m transect was off the figure scale. A complete set of plots for all transects is provided in the Supplemental Materials.