Figure 1.
(A) Map of survey area denoting CTD sampling stations. Locations which included dissolved iron measurements are indicated by blue fill. (B) Map detailing the major currents and their approximate paths (ESC = European Slope Current, SCC = Scottish Coastal Current). (C) Climatology of summer surface nitrate concentrations (µM) in the sub-Arctic Atlantic from the World Ocean Atlas79. Solid black line indicates the 1 µM contour.