Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification?
Artificial ocean alkalinization (AOA) is investigated as a method to mitigate local ocean acidification and protect tropical coral ecosystems during a 21st century high CO2 emission scenario. Employing an Earth system model of intermediate complexity, our implementation of AOA in the Great Barrier R...
Published in: | Environmental Research Letters |
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Online Access: | https://oceanrep.geomar.de/id/eprint/33330/ https://oceanrep.geomar.de/id/eprint/33330/1/Feng_etal_2016_ERL.pdf https://oceanrep.geomar.de/id/eprint/33330/3/erl074008_suppdata.pdf https://doi.org/10.1088/1748-9326/11/7/074008 |
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ftoceanrep:oai:oceanrep.geomar.de:33330 2023-05-15T17:49:42+02:00 Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? Feng, Ellias Y. Keller, David P. Koeve, Wolfgang Oschlies, Andreas 2016-07-08 text https://oceanrep.geomar.de/id/eprint/33330/ https://oceanrep.geomar.de/id/eprint/33330/1/Feng_etal_2016_ERL.pdf https://oceanrep.geomar.de/id/eprint/33330/3/erl074008_suppdata.pdf https://doi.org/10.1088/1748-9326/11/7/074008 en eng IOP Publishing https://oceanrep.geomar.de/id/eprint/33330/1/Feng_etal_2016_ERL.pdf https://oceanrep.geomar.de/id/eprint/33330/3/erl074008_suppdata.pdf Feng, E. Y., Keller, D. P. , Koeve, W. and Oschlies, A. (2016) Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification?. Open Access Environmental Research Letters, 11 (7). Art.Nr. 074008. DOI 10.1088/1748-9326/11/7/074008 <https://doi.org/10.1088/1748-9326%2F11%2F7%2F074008>. doi:10.1088/1748-9326/11/7/074008 cc_by_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1088/1748-9326/11/7/074008 2023-04-07T15:26:30Z Artificial ocean alkalinization (AOA) is investigated as a method to mitigate local ocean acidification and protect tropical coral ecosystems during a 21st century high CO2 emission scenario. Employing an Earth system model of intermediate complexity, our implementation of AOA in the Great Barrier Reef, Caribbean Sea and South China Sea regions, shows that alkalinization has the potential to counteract expected 21st century local acidification in regard to both oceanic surface aragonite saturation Ω and surface pCO2. Beyond preventing local acidification, regional AOA, however, results in locally elevated aragonite oversaturation and pCO2 decline. A notable consequence of stopping regional AOA is a rapid shift back to the acidified conditions of the target regions. We conclude that AOA may be a method that could help to keep regional coral ecosystems within saturation states and pCO2 values close to present-day values even in a high-emission scenario and thereby might ‘buy some time’ against the ocean acidification threat, even though regional AOA does not significantly mitigate the warming threat. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Environmental Research Letters 11 7 074008 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Artificial ocean alkalinization (AOA) is investigated as a method to mitigate local ocean acidification and protect tropical coral ecosystems during a 21st century high CO2 emission scenario. Employing an Earth system model of intermediate complexity, our implementation of AOA in the Great Barrier Reef, Caribbean Sea and South China Sea regions, shows that alkalinization has the potential to counteract expected 21st century local acidification in regard to both oceanic surface aragonite saturation Ω and surface pCO2. Beyond preventing local acidification, regional AOA, however, results in locally elevated aragonite oversaturation and pCO2 decline. A notable consequence of stopping regional AOA is a rapid shift back to the acidified conditions of the target regions. We conclude that AOA may be a method that could help to keep regional coral ecosystems within saturation states and pCO2 values close to present-day values even in a high-emission scenario and thereby might ‘buy some time’ against the ocean acidification threat, even though regional AOA does not significantly mitigate the warming threat. |
format |
Article in Journal/Newspaper |
author |
Feng, Ellias Y. Keller, David P. Koeve, Wolfgang Oschlies, Andreas |
spellingShingle |
Feng, Ellias Y. Keller, David P. Koeve, Wolfgang Oschlies, Andreas Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
author_facet |
Feng, Ellias Y. Keller, David P. Koeve, Wolfgang Oschlies, Andreas |
author_sort |
Feng, Ellias Y. |
title |
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
title_short |
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
title_full |
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
title_fullStr |
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
title_full_unstemmed |
Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
title_sort |
could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification? |
publisher |
IOP Publishing |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/33330/ https://oceanrep.geomar.de/id/eprint/33330/1/Feng_etal_2016_ERL.pdf https://oceanrep.geomar.de/id/eprint/33330/3/erl074008_suppdata.pdf https://doi.org/10.1088/1748-9326/11/7/074008 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/33330/1/Feng_etal_2016_ERL.pdf https://oceanrep.geomar.de/id/eprint/33330/3/erl074008_suppdata.pdf Feng, E. Y., Keller, D. P. , Koeve, W. and Oschlies, A. (2016) Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification?. Open Access Environmental Research Letters, 11 (7). Art.Nr. 074008. DOI 10.1088/1748-9326/11/7/074008 <https://doi.org/10.1088/1748-9326%2F11%2F7%2F074008>. doi:10.1088/1748-9326/11/7/074008 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1088/1748-9326/11/7/074008 |
container_title |
Environmental Research Letters |
container_volume |
11 |
container_issue |
7 |
container_start_page |
074008 |
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1766156123115618304 |