Fig. 5: Local upper ocean dissolved oxygen budgets and apparent oxygen utilization (AOU).
From: Global upper ocean dissolved oxygen budget for constraining the biological carbon pump
a, c, e Monthly upper ocean dissolved oxygen budgets (Eq. (1)) near the Hawaii Ocean Time-series (HOT) station, the Kuroshio-Oyashio confluence region (KOCR), and the Ocean Station P (OSP), respectively. Shading along the lines indicates the uncertainties (see Methods for uncertainty estimation). b, d, f Seasonal cycles of the apparent oxygen utilization (AOU, [O2]sat – [O2]) at the same locations. Blue, red, and green lines indicate the surface mixed layer depth (MLD), euphotic layer depth (Zeu), and the lower boundary of the upper ocean as defined in this study (depth H), respectively.
