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Interannual sea–air CO2 flux variability from an observation-driven ocean mixed-layer scheme
- Source :
- Biogeosciences, Biogeosciences, 2014, 11, pp.4599-4613. ⟨10.5194/bg-11-4599-2014⟩, Biogeosciences Discussions, Biogeosciences Discussions, European Geosciences Union, 2014, 11, pp.3167-3207. ⟨10.5194/bgd-11-3167-2014⟩, Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2014, Vol. 11, N. 17, P. 4599-4613, Biogeosciences, European Geosciences Union, 2014, 11, pp.4599-4613. ⟨10.5194/bg-11-4599-2014⟩, Biogeosciences Discussions, 2014, 11, pp.3167-3207. ⟨10.5194/bgd-11-3167-2014⟩, Biogeosciences, Vol 11, Iss 17, Pp 4599-4613 (2014)
- Publication Year :
- 2018
-
Abstract
- International audience; Interannual anomalies in the sea-air carbon dioxide (CO2) exchange have been estimated from surface-ocean CO2 partial pressure measurements. Available data are sufficient to constrain these anomalies in large parts of the tropical and North Pacific and in the North Atlantic, in some areas covering the period from the mid 1980s to 2011. Global interannual variability is estimated as about 0.31 Pg C yr−1 (temporal standard deviation 1993-2008). The tropical Pacific accounts for a large fraction of this global variability, closely tied to El Niño-Southern Oscillation (ENSO). Anomalies occur more than 6 months later in the east than in the west. The estimated amplitude and ENSO response are roughly consistent with independent information from atmospheric oxygen data. This both supports the variability estimated from surface-ocean carbon data and demonstrates the potential of the atmospheric oxygen signal to constrain ocean biogeochemical processes. The ocean variability estimated from surface-ocean carbon data can be used to improve land CO2 flux estimates from atmospheric inversions.
- Subjects :
- Biogeochemical cycle
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
[SDE.MCG]Environmental Sciences/Global Changes
lcsh:Life
Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 [VDP]
chemistry.chemical_element
OISO
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
ORE SSS
Standard deviation
Mathematics and natural scienses: 400::Geosciences: 450::Oceanography: 452 [VDP]
lcsh:QH540-549.5
SOCAT
Sea air
14. Life underwater
Ecology, Evolution, Behavior and Systematics
Earth-Surface Processes
SURATLANT
Atmospheric oxygen
lcsh:QE1-996.5
Co2 flux
lcsh:Geology
lcsh:QH501-531
Amplitude
chemistry
13. Climate action
Climatology
Environmental science
lcsh:Ecology
Carbon
Ocean mixed layer
Subjects
Details
- Language :
- English
- ISSN :
- 17264189, 17264170, 18106277, and 18106285
- Database :
- OpenAIRE
- Journal :
- Biogeosciences, Biogeosciences, 2014, 11, pp.4599-4613. ⟨10.5194/bg-11-4599-2014⟩, Biogeosciences Discussions, Biogeosciences Discussions, European Geosciences Union, 2014, 11, pp.3167-3207. ⟨10.5194/bgd-11-3167-2014⟩, Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2014, Vol. 11, N. 17, P. 4599-4613, Biogeosciences, European Geosciences Union, 2014, 11, pp.4599-4613. ⟨10.5194/bg-11-4599-2014⟩, Biogeosciences Discussions, 2014, 11, pp.3167-3207. ⟨10.5194/bgd-11-3167-2014⟩, Biogeosciences, Vol 11, Iss 17, Pp 4599-4613 (2014)
- Accession number :
- edsair.doi.dedup.....371ba661ce098018ab818f272bc1fb30