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Timmermann, Axel
기후물리 연구단
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Anthropogenic Intensification of Surface Ocean Interannual pCO2 Variability

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Title
Anthropogenic Intensification of Surface Ocean Interannual pCO2 Variability
Author(s)
M. Angeles Gallego; Axel Timmermann; Tobias Friedrich; Richard E. Zeebe
Subject
anthropogenic emissions, ; carbon dioxide, ; CMIP5 models, ; interannual variability, ; oceanic pCO2
Publication Date
2020-07
Journal
Geophysical Research Letters, v.47, no.13, pp.e2020GL087
Publisher
American Geophysical Union
Abstract
© 2020. American Geophysical Union. We use several global coupled atmosphere-ocean-biogeochemistry models from the Coupled Model Intercomparison Project (CMIP5) to show that the global interannual variability of the sea surface pCO2 (calculated as 1σ) will increase by ∼64 ± 20% by 2040–2090 relative to the beginning of the industrial revolution under the RCP8.5 scenario. All models agree that the increase in variability is a consequence of a larger background pCO2 and a lower buffering capacity that enhance the response of pCO2 to the fluctuations of surface temperature (T) and dissolved inorganic carbon (DIC). The most skillful group of models under present-day conditions shows a future global decrease in DIC fluctuations that will weaken the pCO2 interannual variability (IAV). The remaining uncertainties in the projected evolution of pCO2 variability regionally highlight the need for continuous carbon monitoring programs which will contribute to a better understanding of the oceanic carbon sink's response to increased green house emissions
URI
https://pr.ibs.re.kr/handle/8788114/7776
DOI
10.1029/2020GL087104
ISSN
0094-8276
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
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