Back to Search
Start Over
Wintertime fCO2 variability in the subpolar North Atlantic since 2004
- Source :
- Geophysical Research Letters, Geophysical Research Letters, 2019, 46 (3), pp.1580-1590. ⟨10.1029/2018GL080554⟩, Geophysical Research Letters, American Geophysical Union, 2019, 46 (3), pp.1580-1590. ⟨10.1029/2018GL080554⟩
- Publication Year :
- 2019
- Publisher :
- AGU, 2019.
-
Abstract
- Winter data of surface ocean temperature (SST), salinity (SSS) and CO 2 fugacity (fCO 2 ) collected on the VOS M/V Nuka Arctica in the subpolar North Atlantic between 2004 and 2017 are used to establish trends, drivers, and interannual variability. Over the period, waters cooled and freshened, and the fCO 2 increased at a rate similar to the atmospheric CO 2 growth rate. When accounting for the freshening, the inferred increase in dissolved inorganic carbon (DIC) was found to be approximately twice that expected from atmospheric CO 2 alone. This is attributed to the cooling. In the Irminger Sea, fCO 2 exhibited additional interannual variations driven by atmospheric forcing through winter mixing. As winter fCO 2 in the region is close to the atmospheric, the subpolar North Atlantic has varied between being slightly supersaturated and slightly undersaturated over the investigated period. ©2019. American Geophysical Union. All Rights Reserved.
Details
- Language :
- English
- ISSN :
- 00948276 and 19448007
- Database :
- OpenAIRE
- Journal :
- Geophysical Research Letters, Geophysical Research Letters, 2019, 46 (3), pp.1580-1590. ⟨10.1029/2018GL080554⟩, Geophysical Research Letters, American Geophysical Union, 2019, 46 (3), pp.1580-1590. ⟨10.1029/2018GL080554⟩
- Accession number :
- edsair.dedup.wf.001..1560b8251a651d04c9d46579a0a032be