Is the southern Benguela a significantregional sink of CO2?
| dc.contributor.author | Gregor, Luke | |
| dc.contributor.author | Monteiro, Pedro M S | |
| dc.date.accessioned | 2018-11-30T07:22:14Z | |
| dc.date.available | 2018-11-30T07:22:14Z | |
| dc.date.issued | 2013 | |
| dc.date.updated | 2018-11-29T09:22:58Z | |
| dc.description.abstract | This study was undertaken to characterise the seasonal cycle of air–sea fluxes of carbon dioxide (CO2 ) in the southern Benguela upwelling system off the South African west coast. Samples were collected from six monthly cross-shelf cruises in the St. Helena Bay region during 2010. CO2 fluxes were calculated from pCO2 derived from total alkalinity and dissolved inorganic carbon and scatterometer-based winds. Notwithstanding that it is one of the most biologically productive eastern boundary upwelling systems in the global ocean, the southern Benguela was found to be a very small net annual CO2 sink of -1.4 ± 0.6 mol C/m2 per year (1.7 Mt C/year). Regional primary productivity was offset by nearly equal rates of sediment and sub-thermocline remineralisation flux of CO2 , which is recirculated to surface waters by upwelling. The juxtaposition of the strong, narrow near-shore out-gassing region and the larger, weaker offshore sink resulted in the shelf area being a weak CO2 sink in all seasons but autumn (-5.8, 1.4 and -3.4 mmol C/m2 per day for summer, autumn and winter, respectively). | |
| dc.identifier.apacitation | Gregor, L., & Monteiro, P. M. S. (2013). Is the southern Benguela a significantregional sink of CO2?. <i>South African Journal of Science</i>, http://hdl.handle.net/11427/29101 | en_ZA |
| dc.identifier.chicagocitation | Gregor, Luke, and Pedro M S Monteiro "Is the southern Benguela a significantregional sink of CO2?." <i>South African Journal of Science</i> (2013) http://hdl.handle.net/11427/29101 | en_ZA |
| dc.identifier.citation | Gregor, L., & Monteiro, P. (2013). Is the southern Benguela a significant regional sink of CO2?. South African Journal of Science, 109(5-6), 01-05. | |
| dc.identifier.ris | TY - AU - Gregor, Luke AU - Monteiro, Pedro M S AB - This study was undertaken to characterise the seasonal cycle of air–sea fluxes of carbon dioxide (CO2 ) in the southern Benguela upwelling system off the South African west coast. Samples were collected from six monthly cross-shelf cruises in the St. Helena Bay region during 2010. CO2 fluxes were calculated from pCO2 derived from total alkalinity and dissolved inorganic carbon and scatterometer-based winds. Notwithstanding that it is one of the most biologically productive eastern boundary upwelling systems in the global ocean, the southern Benguela was found to be a very small net annual CO2 sink of -1.4 ± 0.6 mol C/m2 per year (1.7 Mt C/year). Regional primary productivity was offset by nearly equal rates of sediment and sub-thermocline remineralisation flux of CO2 , which is recirculated to surface waters by upwelling. The juxtaposition of the strong, narrow near-shore out-gassing region and the larger, weaker offshore sink resulted in the shelf area being a weak CO2 sink in all seasons but autumn (-5.8, 1.4 and -3.4 mmol C/m2 per day for summer, autumn and winter, respectively). DA - 2013 DB - OpenUCT DP - University of Cape Town J1 - South African Journal of Science LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - Is the southern Benguela a significantregional sink of CO2? TI - Is the southern Benguela a significantregional sink of CO2? UR - http://hdl.handle.net/11427/29101 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/29101 | |
| dc.identifier.vancouvercitation | Gregor L, Monteiro PMS. Is the southern Benguela a significantregional sink of CO2?. South African Journal of Science. 2013; http://hdl.handle.net/11427/29101. | en_ZA |
| dc.language.iso | eng | |
| dc.publisher.department | Department of Oceanography | |
| dc.publisher.faculty | Faculty of Science | |
| dc.publisher.institution | University of Cape Town | |
| dc.source | South African Journal of Science | |
| dc.source.uri | https://www.sajs.co.za/ | |
| dc.title | Is the southern Benguela a significantregional sink of CO2? | |
| dc.type | Journal Article | |
| uct.type.filetype | Text | |
| uct.type.filetype | Image |