Articles | Volume 14, issue 11
https://doi.org/10.5194/bg-14-2715-2017
https://doi.org/10.5194/bg-14-2715-2017
Research article
 | 
02 Jun 2017
Research article |  | 02 Jun 2017

Coastal sources, sinks and strong organic complexation of dissolved cobalt within the US North Atlantic GEOTRACES transect GA03

Abigail E. Noble, Daniel C. Ohnemus, Nicholas J. Hawco, Phoebe J. Lam, and Mak A. Saito

Related authors

Hydrothermal trace metal release and microbial metabolism in the northeastern Lau Basin of the South Pacific Ocean
Natalie R. Cohen, Abigail E. Noble, Dawn M. Moran, Matthew R. McIlvin, Tyler J. Goepfert, Nicholas J. Hawco, Christopher R. German, Tristan J. Horner, Carl H. Lamborg, John P. McCrow, Andrew E. Allen, and Mak A. Saito
Biogeosciences, 18, 5397–5422, https://doi.org/10.5194/bg-18-5397-2021,https://doi.org/10.5194/bg-18-5397-2021, 2021
Short summary
Elevated sources of cobalt in the Arctic Ocean
Randelle M. Bundy, Alessandro Tagliabue, Nicholas J. Hawco, Peter L. Morton, Benjamin S. Twining, Mariko Hatta, Abigail E. Noble, Mattias R. Cape, Seth G. John, Jay T. Cullen, and Mak A. Saito
Biogeosciences, 17, 4745–4767, https://doi.org/10.5194/bg-17-4745-2020,https://doi.org/10.5194/bg-17-4745-2020, 2020
Short summary
The acceleration of dissolved cobalt's ecological stoichiometry due to biological uptake, remineralization, and scavenging in the Atlantic Ocean
Mak A. Saito, Abigail E. Noble, Nicholas Hawco, Benjamin S. Twining, Daniel C. Ohnemus, Seth G. John, Phoebe Lam, Tim M. Conway, Rod Johnson, Dawn Moran, and Matthew McIlvin
Biogeosciences, 14, 4637–4662, https://doi.org/10.5194/bg-14-4637-2017,https://doi.org/10.5194/bg-14-4637-2017, 2017
Short summary

Related subject area

Biogeochemistry: Open Ocean
Sedimentary organic matter signature hints at the phytoplankton-driven biological carbon pump in the central Arabian Sea
Medhavi Pandey, Haimanti Biswas, Daniel Birgel, Nicole Burdanowitz, and Birgit Gaye
Biogeosciences, 21, 4681–4698, https://doi.org/10.5194/bg-21-4681-2024,https://doi.org/10.5194/bg-21-4681-2024, 2024
Short summary
Hydrological cycle amplification imposes spatial patterns on the climate change response of ocean pH and carbonate chemistry
Allison Hogikyan and Laure Resplandy
Biogeosciences, 21, 4621–4636, https://doi.org/10.5194/bg-21-4621-2024,https://doi.org/10.5194/bg-21-4621-2024, 2024
Short summary
Assessing the tropical Atlantic biogeochemical processes in the Norwegian Earth System Model
Shunya Koseki, Lander R. Crespo, Jerry Tjiputra, Filippa Fransner, Noel S. Keenlyside, and David Rivas
Biogeosciences, 21, 4149–4168, https://doi.org/10.5194/bg-21-4149-2024,https://doi.org/10.5194/bg-21-4149-2024, 2024
Short summary
Evolution of oxygen and stratification and their relationship in the North Pacific Ocean in CMIP6 Earth system models
Lyuba Novi, Annalisa Bracco, Takamitsu Ito, and Yohei Takano
Biogeosciences, 21, 3985–4005, https://doi.org/10.5194/bg-21-3985-2024,https://doi.org/10.5194/bg-21-3985-2024, 2024
Short summary
Evaluation of CMIP6 model performance in simulating historical biogeochemistry across the southern South China Sea
Winfred Marshal, Jing Xiang Chung, Nur Hidayah Roseli, Roswati Md Amin, and Mohd Fadzil Bin Mohd Akhir
Biogeosciences, 21, 4007–4035, https://doi.org/10.5194/bg-21-4007-2024,https://doi.org/10.5194/bg-21-4007-2024, 2024
Short summary

Cited articles

Ahlgren, N. A., Noble, A., Patton, A. P., Roache-Johnson, K., Jackson, L., Robinson, D., McKay, C., Moore, L. R., Saito, M. A., and Rocap, G.: The unique trace metal and mixed layer conditions of the Costa Rica upwelling dome support a distinct and dense community of Synechococcus, Limnol. Oceanogr, 59, 2166–2184, 2014.
Baars, O. and Croot, P. L.: Dissolved cobalt speciation and reactivity in the eastern tropical North Atlantic, Mar. Chem., 173, 310–319, 2015.
Banza, C. L. N., Nawrot, T. S., Haufroid, V., Decrée, S., De Putter, T., Smolders, E., Kabyla, B. I., Luboya, O. N., Ilunga, A. N., Mutombo, A. M., and Nemery, B.: High human exposure to cobalt and other metals in Katanga, a mining area of the Democratic Republic of Congo, Environ. Res., 109, 745–752, 2009.
Bergquist, B., Wu, J., and Boyle, E.: Variability in oceanic dissolved iron is dominated by the colloidal fraction, Geochim. Cosmochim. Acta, 71, 2960–2974, 2007.
Bonnet, S., Webb, E. A., Panzeca, C., Karl, D. M., Capone, D. G., and Wilhelmy, S. A. S.: Vitamin B12 excretion by cultures of the marine cyanobacteria Crocosphaera and Synechococcus, Limnol. Oceanogr., 55, 1959–1964, 2010.
Short summary
This study examines sources and sinks of dissolved and labile cobalt in the North Atlantic Ocean. The North and South Atlantic are influenced differently by dust, coastal margin sources, biota, and suspended particles. Dissolved cobalt in both basins is driven by a coastal margin source, leading to large plumes emanating from the north and south African coasts. These plumes are comparable in size despite the high dust flux observed in the North Atlantic that is absent in the South Atlantic.
Altmetrics
Final-revised paper
Preprint