Estimates of Inter-Annual Variability of CO2 Fluxes
CO2 flux maps are determined from wind speed
and the difference in CO2 partial pressure between surface seawater (pCO2SW) and
the overlying atmosphere. To infer the seasonal variability of global net air-sea CO2 fluxes
over the last two decades up to 3-months from present, we derived optimum sub-annual relationships between
pCO2SW and sea surface temperature (SST). The derived algorithms are then applied on
high-resolution SST data to yield changes in pCO2SW on a monthly basis. The pCO2SW
in turn is combined with a gas transfer velocity estimated from high resolution wind products to estimate
Access to the graphical data interface used for this study can be found at the
NOAA ERDDAP website:
Instructions on how to use the Graphical Data Interface.
A full description of the method can be found in the NOAA technical memorandum,
"Procedures to create near real-time seasonal air-sea CO2 flux maps" by G.-H. Park,
R. Wanninkhof, and J. Trinanes.