North Pacific carbon cycle response to climate variability on seasonal to decadal timescales

[1] Climate variability drives significant changes in the physical state of the North Pacific, and there may be important impacts of this variability on the upper ocean carbon balance across the basin. We address this issue by considering the response of seven biogeochemical ocean models to climate...

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Published in:Journal of Geophysical Research
Main Authors: Mckinley, G., Takahashi, T., Buitenhuis, E., Chai, F., Christian, J., Doney, S., Jiang, M., Lindsay, K., Moore, J., Le Quéré, C., Lima, I., Murtugudde, R., Shi, L., Wetzel, P.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2006
Subjects:
Online Access:http://hdl.handle.net/11858/00-001M-0000-000E-D455-D
http://hdl.handle.net/11858/00-001M-0000-000E-D454-F
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spelling ftpubman:oai:pure.mpg.de:item_1692108 2023-08-27T04:12:16+02:00 North Pacific carbon cycle response to climate variability on seasonal to decadal timescales Mckinley, G. Takahashi, T. Buitenhuis, E. Chai, F. Christian, J. Doney, S. Jiang, M. Lindsay, K. Moore, J. Le Quéré, C. Lima, I. Murtugudde, R. Shi, L. Wetzel, P. 2006 application/octet-stream http://hdl.handle.net/11858/00-001M-0000-000E-D455-D http://hdl.handle.net/11858/00-001M-0000-000E-D454-F unknown info:eu-repo/semantics/altIdentifier/doi/10.1029/2005JC003173 http://hdl.handle.net/11858/00-001M-0000-000E-D455-D http://hdl.handle.net/11858/00-001M-0000-000E-D454-F Journal of Geophysical Research: Oceans info:eu-repo/semantics/article 2006 ftpubman https://doi.org/10.1029/2005JC003173 2023-08-02T01:03:03Z [1] Climate variability drives significant changes in the physical state of the North Pacific, and there may be important impacts of this variability on the upper ocean carbon balance across the basin. We address this issue by considering the response of seven biogeochemical ocean models to climate variability in the North Pacific. The models' upper ocean pCO(2) and air-sea CO 2 flux respond similarly to climate variability on seasonal to decadal timescales. Modeled seasonal cycles of pCO(2) and its temperature- and non-temperature-driven components at three contrasting oceanographic sites capture the basic features found in observations (Takahashi et al., 2002, 2006; Keeling et al., 2004; Brix et al., 2004). However, particularly in the Western Subarctic Gyre, the models have difficulty representing the temporal structure of the total pCO(2) seasonal cycle because it results from the difference of these two large and opposing components. In all but one model, the air-sea CO 2 flux interannual variability (1 sigma) in the North Pacific is smaller ( ranges across models from 0.03 to 0.11 PgC/yr) than in the Tropical Pacific ( ranges across models from 0.08 to 0.19 PgC/yr), and the time series of the first or second EOF of the air-sea CO 2 flux has a significant correlation with the Pacific Decadal Oscillation (PDO). Though air-sea CO 2 flux anomalies are correlated with the PDO, their magnitudes are small ( up to +/- 0.025 PgC/yr ( 1 sigma)). Flux anomalies are damped because anomalies in the key drivers of pCO(2) ( temperature, dissolved inorganic carbon (DIC), and alkalinity) are all of similar magnitude and have strongly opposing effects that damp total pCO(2) anomalies. [References: 72] Article in Journal/Newspaper Subarctic Max Planck Society: MPG.PuRe Pacific Journal of Geophysical Research 111 C7
institution Open Polar
collection Max Planck Society: MPG.PuRe
op_collection_id ftpubman
language unknown
description [1] Climate variability drives significant changes in the physical state of the North Pacific, and there may be important impacts of this variability on the upper ocean carbon balance across the basin. We address this issue by considering the response of seven biogeochemical ocean models to climate variability in the North Pacific. The models' upper ocean pCO(2) and air-sea CO 2 flux respond similarly to climate variability on seasonal to decadal timescales. Modeled seasonal cycles of pCO(2) and its temperature- and non-temperature-driven components at three contrasting oceanographic sites capture the basic features found in observations (Takahashi et al., 2002, 2006; Keeling et al., 2004; Brix et al., 2004). However, particularly in the Western Subarctic Gyre, the models have difficulty representing the temporal structure of the total pCO(2) seasonal cycle because it results from the difference of these two large and opposing components. In all but one model, the air-sea CO 2 flux interannual variability (1 sigma) in the North Pacific is smaller ( ranges across models from 0.03 to 0.11 PgC/yr) than in the Tropical Pacific ( ranges across models from 0.08 to 0.19 PgC/yr), and the time series of the first or second EOF of the air-sea CO 2 flux has a significant correlation with the Pacific Decadal Oscillation (PDO). Though air-sea CO 2 flux anomalies are correlated with the PDO, their magnitudes are small ( up to +/- 0.025 PgC/yr ( 1 sigma)). Flux anomalies are damped because anomalies in the key drivers of pCO(2) ( temperature, dissolved inorganic carbon (DIC), and alkalinity) are all of similar magnitude and have strongly opposing effects that damp total pCO(2) anomalies. [References: 72]
format Article in Journal/Newspaper
author Mckinley, G.
Takahashi, T.
Buitenhuis, E.
Chai, F.
Christian, J.
Doney, S.
Jiang, M.
Lindsay, K.
Moore, J.
Le Quéré, C.
Lima, I.
Murtugudde, R.
Shi, L.
Wetzel, P.
spellingShingle Mckinley, G.
Takahashi, T.
Buitenhuis, E.
Chai, F.
Christian, J.
Doney, S.
Jiang, M.
Lindsay, K.
Moore, J.
Le Quéré, C.
Lima, I.
Murtugudde, R.
Shi, L.
Wetzel, P.
North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
author_facet Mckinley, G.
Takahashi, T.
Buitenhuis, E.
Chai, F.
Christian, J.
Doney, S.
Jiang, M.
Lindsay, K.
Moore, J.
Le Quéré, C.
Lima, I.
Murtugudde, R.
Shi, L.
Wetzel, P.
author_sort Mckinley, G.
title North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
title_short North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
title_full North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
title_fullStr North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
title_full_unstemmed North Pacific carbon cycle response to climate variability on seasonal to decadal timescales
title_sort north pacific carbon cycle response to climate variability on seasonal to decadal timescales
publishDate 2006
url http://hdl.handle.net/11858/00-001M-0000-000E-D455-D
http://hdl.handle.net/11858/00-001M-0000-000E-D454-F
geographic Pacific
geographic_facet Pacific
genre Subarctic
genre_facet Subarctic
op_source Journal of Geophysical Research: Oceans
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1029/2005JC003173
http://hdl.handle.net/11858/00-001M-0000-000E-D455-D
http://hdl.handle.net/11858/00-001M-0000-000E-D454-F
op_doi https://doi.org/10.1029/2005JC003173
container_title Journal of Geophysical Research
container_volume 111
container_issue C7
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