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dc.contributor.authorGelado Caballero, María Doloresen_US
dc.contributor.authorLópez García, Patriciaen_US
dc.contributor.authorPatey, Matthew Daviden_US
dc.contributor.authorCollado Sánchez, Cayetanoen_US
dc.contributor.authorSantana Castellano, Desiréen_US
dc.contributor.authorHernández Brito, José Joaquínen_US
dc.description.abstractAtmospheric inputs of soluble trace elements and nutrients to the ocean are a key component in biogeochemical cycles. Aerosol inputs to the Canary Basin are among the highest in the world, due to its proximity to the Sahara and Sahel desert regions of Africa. However, to date there have been no long- term aerosol studies in the Canary Basin, with only limited data available from sporadic oceanographic research cruises which have crossed the region, generally as part of larger transects of the Atlantic Ocean. In this study, aerosol samples have been collected at three stations on the island of Gran Canaria (Taliarte at sea level, Tafira, 269 m altitude and Pico de la Gorra, 1930 m altitude) since 2002, representing a valuable contribution to the understanding of deposition of these soluble components in the region. We present a 11-year record of total suspended particles (TSP) collected in Gran Canaria, Spain and an 9 year record of wet and dry deposition measurements. The solubility of Fe, Al, Mn, Ti, Cu, Co, N and P in dust deposited to the ocean by the dry and wet deposition processes is also examined. Solubility measurements from acetate buffer leaching experiments showed the same tendency in the percentage of soluble metals in the samples: a higher percentage of soluble metals in anthropogenic aerosols and at lower dust loading. Data were separated into three different groups and results showed that, despite more than 80% of the days having an African component, the fluxes of soluble Fe derived from anthropogenic aerosols represented an important input of this metal to the ocean (more than 28%). Moreover, flux estimates for aerosol-derived soluble metals reveal that phosphate is highly depleted relative to Fe and N when compared to Redfield ratios. Therefore, aerosol deposition may be an important source of N and trace metals (Fe, Co, Mn and Al) to the NE subtropical Atlantic Ocean.en_US
dc.sourceBook of Abstracts submitted to the IV Congress of Marine Sciences. Las Palmas de Gran Canaria, June 11th to 13th 2014, p. 209en_US
dc.subject2510 Oceanografíaen_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject251002 Oceanografía químicaen_US
dc.titleA long time-series of atmospheric fluxes of trace metals and nutrients to the Canary Basin.en_US
dc.relation.conferenceIV Congress of Marine Sciencesen_US
dc.type2Actas de congresosen_US
item.fulltextSin texto completo- Tecnologias, gestión y biogeoquímica ambiental- de Química- Tecnologias, gestión y biogeoquímica ambiental- de Química- de Química- de Química- Caballero, María Dolores-ópez García, Patricia-, Matthew David- Sánchez, Cayetano- Castellano, Desiré-ández Brito, José Joaquín-
Appears in Collections:Actas de congresos
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