Long-chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies
Marijke W. de Bar,Jenny E. Ullgren,Robert C. Thunnell,Stuart G. Wakeham,Geert-Jan A. Brummer,Jan-Berend W. Stuut,Jaap S. Sinninghe Damsté,and Stefan Schouten
NIOZ Royal Netherlands Institute for Sea Research, Department of
Marine Microbiology and Biogeochemistry, and Utrecht University, P.O. Box
59, 1790 AB Den Burg, Texel, the Netherlands
NIOZ Royal Netherlands Institute for Sea Research, Department of
Ocean Systems, and Utrecht University, P.O. Box 59, 1790 AB Den Burg, Texel,
the Netherlands
Vrije Universiteit Amsterdam, Faculty of Science, Department of Earth
Sciences, De Boelelaan 1085, 1081HV Amsterdam, the Netherlands
NIOZ Royal Netherlands Institute for Sea Research, Department of
Ocean Systems, and Utrecht University, P.O. Box 59, 1790 AB Den Burg, Texel,
the Netherlands
Vrije Universiteit Amsterdam, Faculty of Science, Department of Earth
Sciences, De Boelelaan 1085, 1081HV Amsterdam, the Netherlands
NIOZ Royal Netherlands Institute for Sea Research, Department of
Marine Microbiology and Biogeochemistry, and Utrecht University, P.O. Box
59, 1790 AB Den Burg, Texel, the Netherlands
Department of Earth Sciences, Faculty of Geosciences, Utrecht
University, Utrecht, the Netherlands
Stefan Schouten
NIOZ Royal Netherlands Institute for Sea Research, Department of
Marine Microbiology and Biogeochemistry, and Utrecht University, P.O. Box
59, 1790 AB Den Burg, Texel, the Netherlands
Department of Earth Sciences, Faculty of Geosciences, Utrecht
University, Utrecht, the Netherlands
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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.
We analyzed sediment traps from the Cariaco Basin, the tropical Atlantic and the Mozambique...
