3.1.2. Reflectance thresholds
Before filtering for environmental conditions, the 90th percentile for the pre-dredging Rrs(667) time series at the virtual station was 0.0013 sr− 1 (Fig. 5a). In contrast, only 71% of post-dredging data were below this mark. A two-sample t-test indicated that the pre- and post- dredging datasets were statistically different (p < 0.001). Nevertheless, ancillary environmental data was used to parse out conditions which typically foster elevated Rrs(667) in this time series.