Observations and tools for studying ocean biogeochemistry from the surface to the deep

Climate change is affecting interior ocean biogeochemistry through physically, biologically, and chemically mediated processes. Our ability to study interior ocean biogeochemical variability on seasonal-to-decadal timescales is transforming with sensor and platform technology advancement, growth in the global biogeochemical observing system, and improved methods for mapping observations in four dimensions. How we use these biogeochemical observations and tools to inform numerical model advancement will influence how prepared we can be for future ocean changes, including: how accurately we predict the ecosystem impacts and biogeochemical feedbacks associated with climate change and purposeful geoengineering; how effectively we manage living marine resources over extreme-event-to-decadal timescales; and how precisely we quantify ocean carbon and oxygen inventories under various climate change and climate intervention scenarios. This talk will provide a brief overview of observations and tools available for studying pelagic ocean biogeochemistry in the context of ocean change.