Episodic organic carbon fluxes from surface ocean to abyssal depths during long-term monitoring in NE Pacific Article Swipe

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Kenneth L. Smith , Henry A. Ruhl , Christine L. Huffard , Monique Messié , Mati Kahru ·

YOU? · · 2018 · Open Access · · DOI: https://doi.org/10.1073/pnas.1814559115

Significance Ignoring temporal fluctuations in the oceanic carbon budget leads to a significant misrepresentation of the cycling of organic matter from production in surface waters to consumption and sequestration in the abyssal ocean. A 29-year time series (1989 to 2017) of particulate organic carbon (POC) fluxes and sea-floor measurements of sediment community oxygen consumption (SCOC) revealed episodic, high-magnitude events over the past 7 years. Time lags between changes in satellite-estimated export flux, POC flux and SCOC varied from 0 to 70 days. A commonly used model to estimate carbon flux through the water column significantly underestimated the measured carbon fluxes by almost 50%. Episodic pulses of organic carbon into the deep sea must be accounted for to balance the oceanic carbon budget.

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Environmental Science

Environmental Chemistry

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Abyssal zone Environmental science Total organic carbon Flux (metallurgy) Carbon sequestration Carbon fibers Deep sea Carbon cycle Oceanography Deep ocean water Organic matter Seabed Geology Carbon dioxide Environmental chemistry Chemistry Ecology Composite material Biology Materials science Organic chemistry Composite number Ecosystem

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Type: article
Language: en
Landing Page: https://doi.org/10.1073/pnas.1814559115
PDF: https://www.pnas.org/content/pnas/115/48/12235.full.pdf
OA Status: bronze
Cited By: 112
References: 47
Related Works: 10
OpenAlex ID: https://openalex.org/W2901553686

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DOI: https://doi.org/10.1073/pnas.1814559115

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Title: Episodic organic carbon fluxes from surface ocean to abyssal depths during long-term monitoring in NE Pacific

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Type: article

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Language: en

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Publication year: 2018

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Publication date: 2018-11-14

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Authors: Kenneth L. Smith, Henry A. Ruhl, Christine L. Huffard, Monique Messié, Mati Kahru

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Landing page: https://doi.org/10.1073/pnas.1814559115

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PDF URL: https://www.pnas.org/content/pnas/115/48/12235.full.pdf

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Concepts: Abyssal zone, Environmental science, Total organic carbon, Flux (metallurgy), Carbon sequestration, Carbon fibers, Deep sea, Carbon cycle, Oceanography, Deep ocean water, Organic matter, Seabed, Geology, Carbon dioxide, Environmental chemistry, Chemistry, Ecology, Composite material, Biology, Materials science, Organic chemistry, Composite number, Ecosystem

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Cited by: 112

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