Seasonal to decadal spatiotemporal variations of the global ocean carbon sink
Abstract The global ocean has absorbed approximately 30% of anthropogenic CO 2 since the beginning of the industrial revolution. However, the spatiotemporal evolution of this important global carbon sink varies substantially on all timescales and has not yet been well evaluated. Here, based on a rec...
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Online Access: | http://dx.doi.org/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.16031 |
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crwiley:10.1111/gcb.16031 2024-09-15T18:37:07+00:00 Seasonal to decadal spatiotemporal variations of the global ocean carbon sink Zhang, Min Cheng, Yangyan Bao, Ying Zhao, Chang Wang, Gang Zhang, Yuanling Song, Zhenya Wu, Zhaohua Qiao, Fangli National Natural Science Foundation of China Natural Science Foundation of Shandong Province 2021 http://dx.doi.org/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.16031 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Global Change Biology volume 28, issue 5, page 1786-1797 ISSN 1354-1013 1365-2486 journal-article 2021 crwiley https://doi.org/10.1111/gcb.16031 2024-08-30T04:08:52Z Abstract The global ocean has absorbed approximately 30% of anthropogenic CO 2 since the beginning of the industrial revolution. However, the spatiotemporal evolution of this important global carbon sink varies substantially on all timescales and has not yet been well evaluated. Here, based on a reconstructed observation‐based product of surface ocean pCO 2 and air–sea CO 2 flux (the MPI‐SOMFFN method), we investigated seasonal to decadal spatiotemporal variations of the ocean CO 2 sink during the past three decades using an adaptive data analysis method. Two predominant variations are modulated annual cycles and decadal fluctuations, which account for approximately 46% and 25% of all extracted components, respectively. Although the whole summer to non‐summer seasonal difference pattern is determined by the Southern Ocean, the non‐summer CO 2 sink at mid‐latitudes in both hemispheres shows an increasing trend (a total increase of approximately 1.0 PgC during the period 1982–2019), while it is relatively stable in summer. On decadal timescales for the global ocean carbon sink, unlike the weakening decade (1990–1999) and the reinvigoration decade (2000–2009) in which the Southern Ocean plays the dominant role, the reinforcement decade (2010–2019) is mainly the result from the weakening source effect in the equatorial Pacific Ocean. Our results suggest that except for the Southern Ocean's role in the global ocean carbon sink, the strengthening non‐summer's sink at mid‐latitudes in both hemispheres and the decadal or longer timescales of equatorial Pacific Ocean dynamics should be fully considered in understanding the oceanic carbon cycle on a global scale. Article in Journal/Newspaper Southern Ocean Wiley Online Library Global Change Biology 28 5 1786 1797 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract The global ocean has absorbed approximately 30% of anthropogenic CO 2 since the beginning of the industrial revolution. However, the spatiotemporal evolution of this important global carbon sink varies substantially on all timescales and has not yet been well evaluated. Here, based on a reconstructed observation‐based product of surface ocean pCO 2 and air–sea CO 2 flux (the MPI‐SOMFFN method), we investigated seasonal to decadal spatiotemporal variations of the ocean CO 2 sink during the past three decades using an adaptive data analysis method. Two predominant variations are modulated annual cycles and decadal fluctuations, which account for approximately 46% and 25% of all extracted components, respectively. Although the whole summer to non‐summer seasonal difference pattern is determined by the Southern Ocean, the non‐summer CO 2 sink at mid‐latitudes in both hemispheres shows an increasing trend (a total increase of approximately 1.0 PgC during the period 1982–2019), while it is relatively stable in summer. On decadal timescales for the global ocean carbon sink, unlike the weakening decade (1990–1999) and the reinvigoration decade (2000–2009) in which the Southern Ocean plays the dominant role, the reinforcement decade (2010–2019) is mainly the result from the weakening source effect in the equatorial Pacific Ocean. Our results suggest that except for the Southern Ocean's role in the global ocean carbon sink, the strengthening non‐summer's sink at mid‐latitudes in both hemispheres and the decadal or longer timescales of equatorial Pacific Ocean dynamics should be fully considered in understanding the oceanic carbon cycle on a global scale. |
author2 |
National Natural Science Foundation of China Natural Science Foundation of Shandong Province |
format |
Article in Journal/Newspaper |
author |
Zhang, Min Cheng, Yangyan Bao, Ying Zhao, Chang Wang, Gang Zhang, Yuanling Song, Zhenya Wu, Zhaohua Qiao, Fangli |
spellingShingle |
Zhang, Min Cheng, Yangyan Bao, Ying Zhao, Chang Wang, Gang Zhang, Yuanling Song, Zhenya Wu, Zhaohua Qiao, Fangli Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
author_facet |
Zhang, Min Cheng, Yangyan Bao, Ying Zhao, Chang Wang, Gang Zhang, Yuanling Song, Zhenya Wu, Zhaohua Qiao, Fangli |
author_sort |
Zhang, Min |
title |
Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
title_short |
Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
title_full |
Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
title_fullStr |
Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
title_full_unstemmed |
Seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
title_sort |
seasonal to decadal spatiotemporal variations of the global ocean carbon sink |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.16031 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.16031 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Global Change Biology volume 28, issue 5, page 1786-1797 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.16031 |
container_title |
Global Change Biology |
container_volume |
28 |
container_issue |
5 |
container_start_page |
1786 |
op_container_end_page |
1797 |
_version_ |
1810481448462843904 |