Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis
The seasonal cycle is the dominant mode of variability in the air-sea CO2 flux in most regions of the global ocean, yet discrepancies between different seasonality estimates are rather large. As part of the Regional Carbon Cycle Assessment and Processes Phase 2 project (RECCAP2), we synthesize surfa...
Published in: | Global Biogeochemical Cycles |
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American Geophysical Union (AGU)
2023
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Online Access: | https://epic.awi.de/id/eprint/58196/ https://epic.awi.de/id/eprint/58196/1/Rodgers%20et%20al.%20-%20Seasonal%20Variability%20of%20the%20Surface%20Ocean%20Carbon%20C.pdf https://doi.org/10.1029/2023gb007798 https://hdl.handle.net/10013/epic.485b3eda-d5a9-4103-a932-4450cf67137c |
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ftawi:oai:epic.awi.de:58196 2024-02-04T10:04:42+01:00 Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis Rodgers, Keith B Schwinger, Jörg Fassbender, Andrea J Landschützer, Peter Yamaguchi, Ryohei Frenzel, Hartmut Stein, Karl Müller, Jens Daniel Goris, Nadine Sharma, Sahil Bushinsky, Seth Chau, Thi‐Tuyet‐Trang Gehlen, Marion Gallego, M Angeles Gloege, Lucas Gregor, Luke Gruber, Nicolas Hauck, Judith Iida, Yosuke Ishii, Masao Keppler, Lydia Kim, Ji‐Eun Schlunegger, Sarah Tjiputra, Jerry Toyama, Katsuya Ayar, Pradeebane Vaittinada Velo, Antón 2023-09 application/pdf https://epic.awi.de/id/eprint/58196/ https://epic.awi.de/id/eprint/58196/1/Rodgers%20et%20al.%20-%20Seasonal%20Variability%20of%20the%20Surface%20Ocean%20Carbon%20C.pdf https://doi.org/10.1029/2023gb007798 https://hdl.handle.net/10013/epic.485b3eda-d5a9-4103-a932-4450cf67137c unknown American Geophysical Union (AGU) https://epic.awi.de/id/eprint/58196/1/Rodgers%20et%20al.%20-%20Seasonal%20Variability%20of%20the%20Surface%20Ocean%20Carbon%20C.pdf Rodgers, K. B. , Schwinger, J. , Fassbender, A. J. , Landschützer, P. , Yamaguchi, R. , Frenzel, H. , Stein, K. , Müller, J. D. , Goris, N. , Sharma, S. , Bushinsky, S. , Chau, T. , Gehlen, M. , Gallego, M. A. , Gloege, L. , Gregor, L. , Gruber, N. , Hauck, J. orcid:0000-0003-4723-9652 , Iida, Y. , Ishii, M. , Keppler, L. , Kim, J. , Schlunegger, S. , Tjiputra, J. , Toyama, K. , Ayar, P. V. and Velo, A. (2023) Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis , Global Biogeochemical Cycles, 37 (9) . doi:10.1029/2023gb007798 <https://doi.org/10.1029/2023gb007798> , hdl:10013/epic.485b3eda-d5a9-4103-a932-4450cf67137c EPIC3Global Biogeochemical Cycles, American Geophysical Union (AGU), 37(9), ISSN: 0886-6236 Article isiRev 2023 ftawi https://doi.org/10.1029/2023gb007798 2024-01-08T00:23:12Z The seasonal cycle is the dominant mode of variability in the air-sea CO2 flux in most regions of the global ocean, yet discrepancies between different seasonality estimates are rather large. As part of the Regional Carbon Cycle Assessment and Processes Phase 2 project (RECCAP2), we synthesize surface ocean pCO2 and air-sea CO2 flux seasonality from models and observation-based estimates, focusing on both a present-day climatology and decadal changes between the 1980s and 2010s. Four main findings emerge: First, global ocean biogeochemistry models (GOBMs) and observation-based estimates (pCO2 products) of surface pCO2 seasonality disagree in amplitude and phase, primarily due to discrepancies in the seasonal variability in surface DIC. Second, the seasonal cycle in pCO2 has increased in amplitude over the last three decades in both pCO2 products and GOBMs. Third, decadal increases in pCO2 seasonal cycle amplitudes in subtropical biomes for both pCO2 products and GOBMs are driven by increasing DIC concentrations stemming from the uptake of anthropogenic CO2 (Cant). In subpolar and Southern Ocean biomes, however, the seasonality change for GOBMs is dominated by Cant invasion, whereas for pCO2 products an indeterminate combination of Cant invasion and climate change modulates the changes. Fourth, biome-aggregated decadal changes in the amplitude of pCO2 seasonal variability are largely detectable against both mapping uncertainty (reducible) and natural variability uncertainty (irreducible), but not at the gridpoint scale over much of the northern subpolar oceans and over the Southern Ocean, underscoring the importance of sustained high-quality seasonally resolved measurements over these regions. Article in Journal/Newspaper Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Southern Ocean Global Biogeochemical Cycles 37 9 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The seasonal cycle is the dominant mode of variability in the air-sea CO2 flux in most regions of the global ocean, yet discrepancies between different seasonality estimates are rather large. As part of the Regional Carbon Cycle Assessment and Processes Phase 2 project (RECCAP2), we synthesize surface ocean pCO2 and air-sea CO2 flux seasonality from models and observation-based estimates, focusing on both a present-day climatology and decadal changes between the 1980s and 2010s. Four main findings emerge: First, global ocean biogeochemistry models (GOBMs) and observation-based estimates (pCO2 products) of surface pCO2 seasonality disagree in amplitude and phase, primarily due to discrepancies in the seasonal variability in surface DIC. Second, the seasonal cycle in pCO2 has increased in amplitude over the last three decades in both pCO2 products and GOBMs. Third, decadal increases in pCO2 seasonal cycle amplitudes in subtropical biomes for both pCO2 products and GOBMs are driven by increasing DIC concentrations stemming from the uptake of anthropogenic CO2 (Cant). In subpolar and Southern Ocean biomes, however, the seasonality change for GOBMs is dominated by Cant invasion, whereas for pCO2 products an indeterminate combination of Cant invasion and climate change modulates the changes. Fourth, biome-aggregated decadal changes in the amplitude of pCO2 seasonal variability are largely detectable against both mapping uncertainty (reducible) and natural variability uncertainty (irreducible), but not at the gridpoint scale over much of the northern subpolar oceans and over the Southern Ocean, underscoring the importance of sustained high-quality seasonally resolved measurements over these regions. |
format |
Article in Journal/Newspaper |
author |
Rodgers, Keith B Schwinger, Jörg Fassbender, Andrea J Landschützer, Peter Yamaguchi, Ryohei Frenzel, Hartmut Stein, Karl Müller, Jens Daniel Goris, Nadine Sharma, Sahil Bushinsky, Seth Chau, Thi‐Tuyet‐Trang Gehlen, Marion Gallego, M Angeles Gloege, Lucas Gregor, Luke Gruber, Nicolas Hauck, Judith Iida, Yosuke Ishii, Masao Keppler, Lydia Kim, Ji‐Eun Schlunegger, Sarah Tjiputra, Jerry Toyama, Katsuya Ayar, Pradeebane Vaittinada Velo, Antón |
spellingShingle |
Rodgers, Keith B Schwinger, Jörg Fassbender, Andrea J Landschützer, Peter Yamaguchi, Ryohei Frenzel, Hartmut Stein, Karl Müller, Jens Daniel Goris, Nadine Sharma, Sahil Bushinsky, Seth Chau, Thi‐Tuyet‐Trang Gehlen, Marion Gallego, M Angeles Gloege, Lucas Gregor, Luke Gruber, Nicolas Hauck, Judith Iida, Yosuke Ishii, Masao Keppler, Lydia Kim, Ji‐Eun Schlunegger, Sarah Tjiputra, Jerry Toyama, Katsuya Ayar, Pradeebane Vaittinada Velo, Antón Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
author_facet |
Rodgers, Keith B Schwinger, Jörg Fassbender, Andrea J Landschützer, Peter Yamaguchi, Ryohei Frenzel, Hartmut Stein, Karl Müller, Jens Daniel Goris, Nadine Sharma, Sahil Bushinsky, Seth Chau, Thi‐Tuyet‐Trang Gehlen, Marion Gallego, M Angeles Gloege, Lucas Gregor, Luke Gruber, Nicolas Hauck, Judith Iida, Yosuke Ishii, Masao Keppler, Lydia Kim, Ji‐Eun Schlunegger, Sarah Tjiputra, Jerry Toyama, Katsuya Ayar, Pradeebane Vaittinada Velo, Antón |
author_sort |
Rodgers, Keith B |
title |
Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
title_short |
Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
title_full |
Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
title_fullStr |
Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
title_full_unstemmed |
Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis |
title_sort |
seasonal variability of the surface ocean carbon cycle: a synthesis |
publisher |
American Geophysical Union (AGU) |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/58196/ https://epic.awi.de/id/eprint/58196/1/Rodgers%20et%20al.%20-%20Seasonal%20Variability%20of%20the%20Surface%20Ocean%20Carbon%20C.pdf https://doi.org/10.1029/2023gb007798 https://hdl.handle.net/10013/epic.485b3eda-d5a9-4103-a932-4450cf67137c |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
EPIC3Global Biogeochemical Cycles, American Geophysical Union (AGU), 37(9), ISSN: 0886-6236 |
op_relation |
https://epic.awi.de/id/eprint/58196/1/Rodgers%20et%20al.%20-%20Seasonal%20Variability%20of%20the%20Surface%20Ocean%20Carbon%20C.pdf Rodgers, K. B. , Schwinger, J. , Fassbender, A. J. , Landschützer, P. , Yamaguchi, R. , Frenzel, H. , Stein, K. , Müller, J. D. , Goris, N. , Sharma, S. , Bushinsky, S. , Chau, T. , Gehlen, M. , Gallego, M. A. , Gloege, L. , Gregor, L. , Gruber, N. , Hauck, J. orcid:0000-0003-4723-9652 , Iida, Y. , Ishii, M. , Keppler, L. , Kim, J. , Schlunegger, S. , Tjiputra, J. , Toyama, K. , Ayar, P. V. and Velo, A. (2023) Seasonal Variability of the Surface Ocean Carbon Cycle: A Synthesis , Global Biogeochemical Cycles, 37 (9) . doi:10.1029/2023gb007798 <https://doi.org/10.1029/2023gb007798> , hdl:10013/epic.485b3eda-d5a9-4103-a932-4450cf67137c |
op_doi |
https://doi.org/10.1029/2023gb007798 |
container_title |
Global Biogeochemical Cycles |
container_volume |
37 |
container_issue |
9 |
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1789973345332101120 |