The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays

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dc.contributor.authorMorris, Tamaryn
dc.contributor.authorHermes, Juliet
dc.contributor.authorBeal, Lisa
dc.contributor.authordu Plessis, Marcel
dc.contributor.authorDuncombe Rae, Christopher
dc.contributor.authorLamont, Tarron
dc.contributor.authorSpeich, Sabrina
dc.contributor.authorRoberts, Michael
dc.contributor.authorAnsorge, Isabelle J
dc.date.accessioned2021-10-08T07:17:45Z
dc.date.available2021-10-08T07:17:45Z
dc.date.issued2017
dc.description.abstractThe 2013 Intergovernmental Panel on Climate Change report, using CMIP5 and EMIC model outputs suggests that the Atlantic Meridional Overturning Circulation (MOC) is very likely to weaken by 11–34% over the next century, with consequences for global rainfall and temperature patterns. However, these coupled, global climate models cannot resolve important oceanic features such as the Agulhas Current and its leakage around South Africa, which a number of studies have suggested may act to balance MOC weakening in the future. To properly understand oceanic changes and feedbacks on anthropogenic climate change we need to substantially improve global ocean observations, particularly within boundary current regions such as the Agulhas Current, which represent the fastest warming regions across the world’s oceans. The South African science community, in collaboration with governing bodies and international partners, has recently established one of the world’s most comprehensive observational networks of a western boundary current system, measuring the Greater Agulhas Current System and its inter-ocean exchanges south of Africa. This observational network, through its design for long-term monitoring, collaborative coordination of resources and skills sharing, represents a model for the international community. We highlight progress of the new Agulhas System Climate Array, as well as the South African Meridional Overturning Circulation programme, which includes the Crossroads and GoodHope hydrographic transects, and the South Atlantic MOC Basin-wide Array. We also highlight some of the ongoing challenges that the programmes still face.
dc.identifier.apacitationMorris, T., Hermes, J., Beal, L., du Plessis, M., Duncombe Rae, C., Lamont, T., ... Ansorge, I. J. (2017). The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays. <i>South African Journal of Science</i>, 113(43289), 174 - 177. http://hdl.handle.net/11427/34810en_ZA
dc.identifier.chicagocitationMorris, Tamaryn, Juliet Hermes, Lisa Beal, Marcel du Plessis, Christopher Duncombe Rae, Tarron Lamont, Sabrina Speich, Michael Roberts, and Isabelle J Ansorge "The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays." <i>South African Journal of Science</i> 113, 43289. (2017): 174 - 177. http://hdl.handle.net/11427/34810en_ZA
dc.identifier.citationMorris, T., Hermes, J., Beal, L., du Plessis, M., Duncombe Rae, C., Lamont, T., Speich, S. & Roberts, M. et al. 2017. The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays. <i>South African Journal of Science.</i> 113(43289):174 - 177. http://hdl.handle.net/11427/34810en_ZA
dc.identifier.issn0038-2353
dc.identifier.issn1996-7489
dc.identifier.ris TY - Journal Article AU - Morris, Tamaryn AU - Hermes, Juliet AU - Beal, Lisa AU - du Plessis, Marcel AU - Duncombe Rae, Christopher AU - Lamont, Tarron AU - Speich, Sabrina AU - Roberts, Michael AU - Ansorge, Isabelle J AB - The 2013 Intergovernmental Panel on Climate Change report, using CMIP5 and EMIC model outputs suggests that the Atlantic Meridional Overturning Circulation (MOC) is very likely to weaken by 11–34% over the next century, with consequences for global rainfall and temperature patterns. However, these coupled, global climate models cannot resolve important oceanic features such as the Agulhas Current and its leakage around South Africa, which a number of studies have suggested may act to balance MOC weakening in the future. To properly understand oceanic changes and feedbacks on anthropogenic climate change we need to substantially improve global ocean observations, particularly within boundary current regions such as the Agulhas Current, which represent the fastest warming regions across the world’s oceans. The South African science community, in collaboration with governing bodies and international partners, has recently established one of the world’s most comprehensive observational networks of a western boundary current system, measuring the Greater Agulhas Current System and its inter-ocean exchanges south of Africa. This observational network, through its design for long-term monitoring, collaborative coordination of resources and skills sharing, represents a model for the international community. We highlight progress of the new Agulhas System Climate Array, as well as the South African Meridional Overturning Circulation programme, which includes the Crossroads and GoodHope hydrographic transects, and the South Atlantic MOC Basin-wide Array. We also highlight some of the ongoing challenges that the programmes still face. DA - 2017 DB - OpenUCT DP - University of Cape Town IS - 43289 J1 - South African Journal of Science LK - https://open.uct.ac.za PY - 2017 SM - 0038-2353 SM - 1996-7489 T1 - The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays TI - The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays UR - http://hdl.handle.net/11427/34810 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34810
dc.identifier.vancouvercitationMorris T, Hermes J, Beal L, du Plessis M, Duncombe Rae C, Lamont T, et al. The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays. South African Journal of Science. 2017;113(43289):174 - 177. http://hdl.handle.net/11427/34810.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Oceanography
dc.publisher.facultyFaculty of Science
dc.sourceSouth African Journal of Science
dc.source.journalissue43289
dc.source.journalvolume113
dc.source.pagination174 - 177
dc.source.urihttps://dx.doi.org/10.17159/sajs.2017/20160330
dc.subject.otherASCA
dc.subject.otherSAMBA
dc.subject.otherGoodHope
dc.subject.otherCrossroads
dc.subject.otherlong-term monitoring
dc.titleThe importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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