Figure 4
(A) Dissolved oxygen time-series data from November 2009 throughout January 2011. The white line represents the 10 µM O2 isoline. Black dots represent sampling points. (B) Potential temperature (ϴ)/salinity diagram from depth profiles taken at Station 18, off Concepción. Data points are color-coded (side color bar) for oxygen concentrations. Rectangles indicate temperature and salinity ranges for Equatorial Subsurface Water (ESSW) and Eastern South Pacific Transition Water (ESPTW) in austral winter and summer. Grey dotted lines represent isopycnals as sigma-t (σ0).
