Oceanic efflux of ancient marine dissolved organic carbon in primary marine aerosol

Steven R. Beaupré; David J. Kieber; William C. Keene; Michael S. Long; John R. Maben; Xi Lu; Yuting Zhu; Amanda A. Frossard; Joanna D. Kinsey; Patrick Duplessis; Rachel Y.W. Chang; John Bisgrove

doi:10.1126/sciadv.aax6535

Oceanic efflux of ancient marine dissolved organic carbon in primary marine aerosol

Steven R. Beaupré
, David J. Kieber
, William C. Keene
, Michael S. Long
, John R. Maben
, Xi Lu
, Yuting Zhu
, Amanda A. Frossard
, Joanna D. Kinsey
, Patrick Duplessis
, Rachel Y.W. Chang
, John Bisgrove

SUNY College of Environmental Science and Forestry
University of Virginia
Harvard University
Renaissance Fiber LLC
Stony Brook University
Wadsworth Center for Laboratories and Research
University of Georgia
North Carolina State University
Quinnipiac University
Dalhousie University

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Breaking waves produce bubble plumes that burst at the sea surface, injecting primary marine aerosol (PMA) highly enriched with marine organic carbon (OC) into the atmosphere. It is widely assumed that this OC is modern, produced by present-day biological activity, even though nearly all marine OC is thousands of years old, produced by biological activity long ago. We used natural abundance radiocarbon (¹⁴C) measurements to show that 19 to 40% of the OC associated with freshly produced PMA was refractory dissolved OC (RDOC). Globally, this process removes 2 to 20 Tg of RDOC from the oceans annually, comparable to other RDOC losses. This process represents a major removal pathway for old OC from the sea, with important implications for oceanic and atmospheric biogeochemistry, the global carbon cycle, and climate.

Original language	English
Article number	eaax6535
Journal	Science Advances
Volume	5
Issue number	10
DOIs	https://doi.org/10.1126/sciadv.aax6535
State	Published - Oct 23 2019

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@article{e183426a56b34eb89960129e8c687869,

title = "Oceanic efflux of ancient marine dissolved organic carbon in primary marine aerosol",

abstract = "Breaking waves produce bubble plumes that burst at the sea surface, injecting primary marine aerosol (PMA) highly enriched with marine organic carbon (OC) into the atmosphere. It is widely assumed that this OC is modern, produced by present-day biological activity, even though nearly all marine OC is thousands of years old, produced by biological activity long ago. We used natural abundance radiocarbon (14C) measurements to show that 19 to 40\% of the OC associated with freshly produced PMA was refractory dissolved OC (RDOC). Globally, this process removes 2 to 20 Tg of RDOC from the oceans annually, comparable to other RDOC losses. This process represents a major removal pathway for old OC from the sea, with important implications for oceanic and atmospheric biogeochemistry, the global carbon cycle, and climate.",

author = "Beaupr{\'e}, \{Steven R.\} and Kieber, \{David J.\} and Keene, \{William C.\} and Long, \{Michael S.\} and Maben, \{John R.\} and Xi Lu and Yuting Zhu and Frossard, \{Amanda A.\} and Kinsey, \{Joanna D.\} and Patrick Duplessis and Chang, \{Rachel Y.W.\} and John Bisgrove",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).",

year = "2019",

month = oct,

day = "23",

doi = "10.1126/sciadv.aax6535",

language = "English",

volume = "5",

journal = "Science Advances",

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TY - JOUR

T1 - Oceanic efflux of ancient marine dissolved organic carbon in primary marine aerosol

AU - Beaupré, Steven R.

AU - Kieber, David J.

AU - Keene, William C.

AU - Long, Michael S.

AU - Maben, John R.

AU - Lu, Xi

AU - Zhu, Yuting

AU - Frossard, Amanda A.

AU - Kinsey, Joanna D.

AU - Duplessis, Patrick

AU - Chang, Rachel Y.W.

AU - Bisgrove, John

N1 - Publisher Copyright: Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

PY - 2019/10/23

Y1 - 2019/10/23

N2 - Breaking waves produce bubble plumes that burst at the sea surface, injecting primary marine aerosol (PMA) highly enriched with marine organic carbon (OC) into the atmosphere. It is widely assumed that this OC is modern, produced by present-day biological activity, even though nearly all marine OC is thousands of years old, produced by biological activity long ago. We used natural abundance radiocarbon (14C) measurements to show that 19 to 40% of the OC associated with freshly produced PMA was refractory dissolved OC (RDOC). Globally, this process removes 2 to 20 Tg of RDOC from the oceans annually, comparable to other RDOC losses. This process represents a major removal pathway for old OC from the sea, with important implications for oceanic and atmospheric biogeochemistry, the global carbon cycle, and climate.

AB - Breaking waves produce bubble plumes that burst at the sea surface, injecting primary marine aerosol (PMA) highly enriched with marine organic carbon (OC) into the atmosphere. It is widely assumed that this OC is modern, produced by present-day biological activity, even though nearly all marine OC is thousands of years old, produced by biological activity long ago. We used natural abundance radiocarbon (14C) measurements to show that 19 to 40% of the OC associated with freshly produced PMA was refractory dissolved OC (RDOC). Globally, this process removes 2 to 20 Tg of RDOC from the oceans annually, comparable to other RDOC losses. This process represents a major removal pathway for old OC from the sea, with important implications for oceanic and atmospheric biogeochemistry, the global carbon cycle, and climate.

UR - https://www.scopus.com/pages/publications/85074087676

U2 - 10.1126/sciadv.aax6535

DO - 10.1126/sciadv.aax6535

M3 - Article

C2 - 31681848

AN - SCOPUS:85074087676

SN - 2375-2548

VL - 5

JO - Science Advances

JF - Science Advances

IS - 10

M1 - eaax6535

ER -

Oceanic efflux of ancient marine dissolved organic carbon in primary marine aerosol

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