Articles | Volume 16, issue 8
Biogeosciences, 16, 1705–1727, 2019
https://doi.org/10.5194/bg-16-1705-2019
Biogeosciences, 16, 1705–1727, 2019
https://doi.org/10.5194/bg-16-1705-2019

Research article 25 Apr 2019

Research article | 25 Apr 2019

Long-chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies

Marijke W. de Bar et al.

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Cited articles

Araujo, M., Noriega, C., Hounsou-gbo, G. A., Veleda, D., Araujo, J., Bruto, L., Feitosa, F., Flores-Montes, M., Lefevre, N., Melo, P., Otsuka, A., Travassos, K., Schwamborn, R., and Neumann-Leitao, S.: A Synoptic Assessment of the Amazon River-Ocean Continuum during Boreal Autumn: From Physics to Plankton Communities and Carbon Flux, Front. Microbiol., 8, 1358, https://doi.org/10.3389/fmicb.2017.01358, 2017. 
Balzano, S., Lattaud, J., Villanueva, L., Rampen, S. W., Brussaard, C. P. D., van Bleijswijk, J., Bale, N., Sinninghe Damsté, J. S., and Schouten, S.: A quest for the biological sources of long chain alkyl diols in the western tropical North Atlantic Ocean, Biogeosciences, 15, 5951–5968, https://doi.org/10.5194/bg-15-5951-2018, 2018. 
Biastoch, A. and Krauss, W.: The Role of Mesoscale Eddies in the Source Regions of the Agulhas Current, J. Phys. Oceanogr., 29, 2303–2317, https://doi.org/10.1175/1520-0485(1999)029<2303:Tromei>2.0.Co;2, 1999. 
Bogus, K. A., Zonneveld, K. A. F., Fischer, D., Kasten, S., Bohrmann, G., and Versteegh, G. J. M.: The effect of meter-scale lateral oxygen gradients at the sediment-water interface on selected organic matter based alteration, productivity and temperature proxies, Biogeosciences, 9, 1553–1570, https://doi.org/10.5194/bg-9-1553-2012, 2012. 
Brassell, S. C.: Climatic influences on the Paleogene evolution of alkenones, Paleoceanography, 29, 255–272, https://doi.org/10.1002/2013pa002576, 2014. 
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We analyzed sediment traps from the Cariaco Basin, the tropical Atlantic and the Mozambique Channel to evaluate seasonal imprints in the concentrations and fluxes of long-chain diols (LDIs), in addition to the long-chain diol index proxy (sea surface temperature proxy) and the diol index (upwelling indicator). Despite significant degradation, LDI-derived temperatures were very similar for the sediment traps and seafloor sediments, and corresponded to annual mean sea surface temperatures.
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