Applying water masses as a framework to analyze the distribution of redox active compounds in the Pacific Oxygen Deficient Zones and the subsequent implications for low oxygen concentrations across the eastern Pacific Ocean
Results from this study indicate similar and shared water masses between the two ODZs as well. One significant water mass, the 13 ºC water mass, links low oxygen waters across the entire Eastern Pacific Ocean from the Equatorial Undercurrent through the ODZs poleward to Alaska and Chile via their respective undercurrents. This conclusion is consistent with independent water mass analysis in the California Current System (CCS) and Peru-Chile Current System (PCCS) and modeling studies on the eastern Equatorial Pacific. The relative impact of changing the percent of ODZ source waters exported to these ecosystems will be compared against other climate-changed stressors, such as temperature-driven deoxygenation, to generate a more holistic picture of the consequences of deoxygenation on the eastern Pacific Ocean.