Reviews and syntheses: Abrupt ocean biogeochemical change under human-made climatic forcing – warming, acidification, and deoxygenation

19480 6 104893 2 319326 document 104893 bg-2023-182.pdf application/pdf ec67853be53ab7d57a692f7abd95c05c MD5 9700388 2024-02-02 10:28:55 https://pure.iiasa.ac.at/id/eprint/19480/1/bg-2023-182.pdf 19480 1 1 application/pdf text en public cc_by_4

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/104893 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/104893 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/104893 archive 353 disk0/00/01/94/80 2024-02-02 10:33:15 2024-02-02 10:33:15 2024-02-02 10:33:15 article show 1 Heinze C. Blenckner T. Brown P. Fröb F. Morée A. New A. Nissen C. Rynders S. Seguro I. Aksenov Y. Artioli Y. Bourgeois T. Burger F. Buzan J. Cael B. Yumruktepe V. Chierici M. Danek C. Dieckmann U. 1668 0000-0001-7089-0393 Fransson A. Frölicher T. Galli G. Gehlen M. González A. Gonzalez-Davila M.. Gruber N. Gustafsson Ö. Hauck J. Heino M. Henson S. Hieronymus J. Huertas I. Jebri F. Jeltsch-Thömmes A. Joos F. Joshi J. 8895 Kelly S. Menon N. Mongwe P. Oziel L. Ólafsdottir S. Palmieri J. Pérez F. Ranith R. Ramanantsoa J. Roy T. Rusiecka D. Santana Casiano J. Santana-Falcón Y. Schwinger J. Séférian R. Seifert M. Shchiptsova A. 2049 Sinha B. Somes C. Steinfeldt R. Tao D. Tjiputra J. Ulfsbo A. Völker C. Wakamatsu T. Ye Y. Reviews and syntheses: Abrupt ocean biogeochemical change under human-made climatic forcing – warming, acidification, and deoxygenation submitted ASA CAT EM SYRR Abrupt changes in ocean biogeochemical variables occur as a result of human-induced climate forcing as well as those which are more gradual and occur over longer timescales. These abrupt changes have not yet been identified and quantified to the same extent as the more gradual ones. We review and synthesise abrupt changes in ocean biogeochemistry under human-induced climatic forcing. We specifically address the ocean carbon and oxygen cycles because the related processes of acidification and deoxygenation provide important ecosystem hazards. Since biogeochemical cycles depend also on the physical environment, we also describe the relevant changes in warming, circulation, and sea ice. We include an overview of the reversibility or irreversibility of abrupt marine biogeochemical changes. Important implications of abrupt biogeochemical changes for ecosystems are also discussed. We conclude that there is evidence for increasing occurrence and extent of abrupt changes in ocean biogeochemistry as a consequence of rising greenhouse gas emissions. 2023 published European Geosciences Union (EGU) doi:10.5194/bg-2023-182 66 3189 280 public Biogeosciences Discussions FALSE 1810-6285 Reviews and syntheses: Abrupt ocean biogeochemical change under human-made climatic forcing – warming, acidification, and deoxygenation no info:eu-repo/semantics/article