title: Anthropogenic CO2 uptake by the ocean based on the global chlorofluorocarbon data set.
abstract: We estimated the oceanic inventory of anthropogenic carbon dioxide (CO2) from 1980 to 1999 using a technique based on the global chlorofluorocarbon data set. Our analysis suggests that the ocean stored 14.8 petagrams of anthropogenic carbon from mid-1980 to mid-1989 and 17.9 petagrams of carbon from mid-1990 to mid-1999, indicating an oceanwide net uptake of 1.6 and 2.0 +/- 0.4 petagrams of carbon per year, respectively. Our results provide an upper limit on the solubility-driven anthropogenic CO2 flux into the ocean, and they suggest that most ocean general circulation models are overestimating oceanic anthropogenic CO2 uptake over the past two decades.
authors.affiliation: Atmospheric and Oceanic Science Program, Princeton University, Princeton, NJ 08544, USA.
authors.forename: Ben I
authors.initials: BI
authors.lastname: McNeil
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Matear
authors.forename: Robert M
authors.initials: RM
authors.lastname: Key
authors.forename: John L
authors.initials: JL
authors.lastname: Bullister
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Sarmiento