Wind-speed dependent bulk formulations of gas transfer
velocity have traditionally been scaled to the oceanic inventory of bomb 14C [1992, Wanninkhof and McGillis 1999) and average global wind speeds [Esbensen
and Kushnir 1981] . The recent advances in our ability to
estimate both the first two moments of global wind-speeds and the inventories
of bomb 14C
inventories call for a reanalysis of this anchor point as well as an
exploration of its implications on oceanic carbon uptake. We present a
reanalysis of the globally averaged air-sea transfer velocity of CO2
using an inverse calculation of bomb 14CO2 air-sea fluxes
from point measurements of 14C in the ocean interior and several
oceanic transport GCMs.
Author: C. Sweeney, E. M. Gloor, A. R. Jacobson, R. M. Key, et al (colm dot Sweeney at noaa dot gov)
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