CUSTARD 2 - Carbon Uptake and Seasonal Traits of Antarctic Remineralisation Depth (Originally SME 1

The cruise forms a component of a project (CUSTARD) funded by the NERC RoSES strategic programme. The cruise will target the upper limb of the Southern Ocean overturning circulation and will focus on air-sea CO2 exchange and organic carbon fluxes in the mesopelagic. A CTD survey, Marine Snow Catcher deployments and glider recoveries are planned (gliders will have been deployed one year earlier on 17/457). The cruise will be in the vicinity of the US's Southern Ocean OOI ocean observatory located at 55S, 90W and near the WOCE repeat line P19.