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The Scientific Committee on Oceanic Research (SCOR) is the leading international non - governmental organization for the promotion and coordination of international oceanographic activities, with the aim to solve conceptual and methodological problems that hinder marine research. The SCOR Working Group #143, formed in November 2013, and focuses on improving measure ments of the nitrous oxide and methane in seawater. One activity conducted was the synthesis of gas standards which were distributed to the Full Members of the Working Group and a few Associate Members as listed below. This Technical Report provides deta ils on the production of the nitrous oxide and methane standards and includes the absolute concentrations for each gas cylinder and best practice recommendations for gas regulator usage. Anyone seeking to cross - compare their own standards with these stand ards should contact one of the recipients of the standards. Published Refereed Current 14.2 Nitrous oxide TRL 9 Actual system "mission proven" through successful mission operations (ground or space) Best Practice Guide

We compared the 13 models participating in the Ocean Carbon Model Intercomparison Project (OCMIP) with regards to their skill in matching observed distributions of CFC-11. This analysis characterizes the abilities of these models to ventilate the ocean on timescales relevant for anthropogenic CO2 uptake. We found a large range in the modeled global inventory (±30%), mainly due to differences in ventilation from the high latitudes. In the Southern Ocean, models differ particularly in the longitudinal distribution of the CFC uptake in the intermediate water, whereas the latitudinal distribution is mainly controlled by the subgrid-scale parameterization. Models with isopycnal diffusion and eddy-induced velocity parameterization produce more realistic intermediate water ventilation. Deep and bottom water ventilation also varies substantially between the models. Models coupled to a sea-ice model systematically provide more realistic AABW formation source region; however these same models also largely overestimate AABW ventilation if no specific parameterization of brine rejection during sea-ice formation is included. In the North Pacific Ocean, all models exhibit a systematic large underestimation of the CFC uptake in the thermocline of the subtropical gyre, while no systematic difference toward the observations is found in the subpolar gyre. In the North Atlantic Ocean, the CFC uptake is globally underestimated in subsurface. In the deep ocean, all but the adjoint model, failed to produce the two recently ventilated branches observed in the North Atlantic Deep Water (NADW). Furthermore, simulated transport in the Deep Western Boundary Current (DWBC) is too sluggish in all but the isopycnal model, where it is too rapid.