Fig. 2: Interannual mean oxygen saturation profiles from the BATS CTD record from 1996-2019.
From: Seasonal enhancement of the viral shunt catalyzes a subsurface oxygen maximum in the Sargasso Sea
a Oxygen saturation data are binned by 5 m depth windows and 12-day means throughout the year. The black line indicates interannual average mixed layer depth for a 10-day window as determined by 0.125 kg/m3 change in potential density from a reference pressure of 10 db. The color bar is scaled such that white refers to an oxygen saturation state of 100% (in balance with the atmosphere), blue colors are undersaturated (suggesting respiration), and red colors are supersaturated (suggesting positive net primary production). Gray lines indicate the annual depth trajectory of potential density surfaces binned at 0.1 kg/m3 resolution, such that color changes between gray lines are along-isopycnal changes in oxygen saturation (with changes from white to red indicating oxygen production and changes from white to blue indicating respiration). Data were retrieved from http://bats.bios.edu/bats-data/b Annual BATS oxygen profiles by month of year. Data are binned into 2 m depth bins and color indicates smoothed oxygen concentration as determined by CTD optodes. Black line indicates mixed-layer depth as determined by a 0.125 difference in sigma-theta from a reference pressure of 10 db. White bars indicate missing data for that month.
