Fig. 5: Temporal variability in along-current averaged winter mean turbulent heat flux.
From: Sea-ice retreat suggests re-organization of water mass transformation in the Nordic and Barents Seas
Time series of the turbulent heat flux are shown in the black curves for the: a East Greenland Current (EGC); b Svalbard Branch (SB) and e Barents Sea Branch (BSB) with the corresponding black dashed curves representing the low frequency variability as expressed by a 10-year moving window average. In a the decadal means over the period before (1955−1964), during (1965−1974) and after (1975−1984) the ice years are shown by the red lines. The trend in the winter turbulent heat flux are shown in the black curves as a function of a variable start year with a fixed end year of 2020 for the: b EGC, d SB and f BSB with the corresponding blue and red dashed curves representing the 90th and 95th percentile trends from a Monte Carlo distribution of time series that share the same spectral characteristics as the underlying time series. Trends with magnitudes larger than a given percentile curve are statistically significant at that threshold. All fields are from the ERA5 Reanalysis.
