Ratio and CO2
Airborne Southern Ocean Study (ORCAS) will advance our understanding of the physical and biological controls on air-sea exchange of O2
in the Southern Ocean. The Southern Ocean plays a dominant role in the uptake of anthropogenic carbon yet this process is poorly represented by models and its future trajectory remains highly uncertain. ORCAS This will be achieved through intensive airborne surveys of atmospheric O2
, related gases, and ocean surface properties over diverse biogeochemical regions adjacent to the southern tip of South America and the Antarctic Peninsula. ORCAS will utilize the NSF/NCAR HIAPER Gulfstream V aircraft with a suite of high-precision in situ and remote sensing instruments, combined with whole-air samplers and be deployed in Punta Arenas, Chile from 15 January - 28 February of 2016.
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