Air-sea CO2 fluxes in the Adriatic sea: two seasonal snapshots in February and October 2008

We present the air-sea CO fluxes in the Adriatic Sea calculated from shipboard pH and alkalinity measurements, under two contrasting seasonal conditions. During February 2008 the whole basin was undersaturated with respect to the atmosphere and acted as a CO sink, with higher fluxes on the Northern Adriatic shelf, where dense water formation was occurring. In October 2008, under late summer stratified conditions, the North Adriatic was still a CO sink, with weaker fluxes, while the central South Adriatic was acting as a weak CO source.