dc.contributor.author | Omar, Abdirahman M. | eng |
dc.contributor.author | Olsen, Are | eng |
dc.date.accessioned | 2006-02-24T12:58:11Z | |
dc.date.available | 2006-02-24T12:58:11Z | |
dc.date.issued | 2006-02-18 | eng |
dc.Published | Geophysical research letters 2006 33(4) | en |
dc.identifier.uri | https://hdl.handle.net/1956/1106 | |
dc.description.abstract | This study determines the temporal changes of wintertime surface ocean partial pressure of CO2 (pCO2 SW) in the eastern subpolar North Atlantic (esNA) (50–64ºN; 32–10ºW) by using data of carbon-system parameters and chlorofluorocarbon-12 acquired in 1993. Wintertime pCO2 SW and its temporal trend from early 1970s through to the late 1980s were reconstructed through the application of a back-calculation method that isolates surface variations which have been transmitted to the ocean interior during the formation of Subpolar Mode Water. Our computations suggest a pCO2 SW growth rate (3 matm/yr) which is twice as large as that of atmospheric pCO2, 1.47 matm/yr. The sensitivity of the estimated pCO2 SW growth rate to remineralization ratios as well as to the CFC-12-derived ages is discussed. Cooling and northward advection of surface water equilibrated with the increasing atmospheric CO2 is suggested as the process responsible for the excessive pCO2 SW growth rate. | en_US |
dc.format.extent | 724156 bytes | eng |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | American Geophysical Union | en_US |
dc.title | Reconstructing the time history of the air-sea CO2 disequilibrium and its rate of change in the eastern subpolar North Atlantic, 1972–1989 | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.identifier.doi | https://doi.org/10.1029/2005gl025425 | |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400 | nob |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 | nob |