Variability and trends in surface seawater pCO(2) and CO2 flux in the Pacific Ocean

Sutton, A. J.; Wanninkhof, R.; Sabine, C. L.; Feely, R. A.; Cronin, M. F.; Weller, R. A.

doi:10.1002/2017gl073814

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Variability and trends in surface seawater pCO(2) and CO2 flux in the Pacific Ocean

2017
By Sutton, A. J. ; Wanninkhof, R. ; Sabine, C. L. ; ...
Source: Geophysical Research Letters, 44(11), 5627-5636.

[PDF-668.31 KB]

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Journal Title:

Geophysical Research Letters
Personal Author:

Sutton, A. J. ; Wanninkhof, R. ; Sabine, C. L. ; Feely, R. A. ; Cronin, M. F. ; ... More +

Sutton, A. J. ; Wanninkhof, R. ; Sabine, C. L. ; Feely, R. A. ; Cronin, M. F. ; Weller, R. A. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; AOML (Atlantic Oceanographic and Meteorological Laboratory)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) Less -
Description:

Variability and change in the ocean sink of anthropogenic carbon dioxide (CO2) have implications for future climate and ocean acidification. Measurements of surface seawater CO2 partial pressure (pCO(2)) and wind speed from moored platforms are used to calculate high-resolution CO2 flux time series. Here we use the moored CO2 fluxes to examine variability and its drivers over a range of time scales at four locations in the Pacific Ocean. There are significant surface seawater pCO(2), salinity, and wind speed trends in the North Pacific subtropical gyre, especially during winter and spring, which reduce CO2 uptake over the 10 year record of this study. Starting in late 2013, elevated seawater pCO(2) values driven by warm anomalies cause this region to be a net annual CO2 source for the first time in the observational record, demonstrating how climate forcing can influence the timing of an ocean region shift from CO2 sink to source.
Source:

Geophysical Research Letters, 44(11), 5627-5636.
DOI:

https://doi.org/10.1002/2017gl073814
Document Type:

Journal Article
Funding:

Grant no. NA09OAR4320129
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urn:sha256:5fc962d35ef71df51b5fc53b6b08ff07b615ab3a77c06a61ceac6bdd7224f360
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Variability and trends in surface seawater pCO(2) and CO2 flux in the Pacific Ocean

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