Fig. 9
Trends and time of emergence. Model linear trend (%/year) for a actual Chl-a, and b remotely sensed reflectance at 475 nm; and time of emergence of trend for c Chl-a, and d RRS at 475 m. A generalized least squares (GLS) fit was used to quantify the trends. Only regions with statistically significant (p < 0.05) trends over the 21st century and that were largely ice-free in the current day (as model RRS are only valid for such regions) are shown. The symbols (+,o) indicate two locations highlighted in Fig. 8
