Articles | Volume 16, issue 2
https://doi.org/10.5194/bg-16-309-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-16-309-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The export flux of particulate organic carbon derived from 210Po∕210Pb disequilibria along the North Atlantic GEOTRACES GA01 transect: GEOVIDE cruise
Earth and Environmental Sciences, the Graduate Center, City
University of New York, New York, USA
School of Earth and Environmental Sciences, Queens College, City
University of New York, Flushing, USA
Nolwenn Lemaitre
Department of Earth Sciences, Institute of Geochemistry and
Petrology, ETH-Zürich, Zürich, Switzerland
Maxi Castrillejo
Laboratory of Ion Beam Physics, ETH-Zürich, Otto Stern Weg 5,
Zürich, 8093, Switzerland
Institut de Ciència i Tecnologia Ambientals and Departament de
Física, Universitat Autònoma de Barcelona, Barcelona, Spain
Montserrat Roca-Martí
Institut de Ciència i Tecnologia Ambientals and Departament de
Física, Universitat Autònoma de Barcelona, Barcelona, Spain
Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Pere Masqué
Institut de Ciència i Tecnologia Ambientals and Departament de
Física, Universitat Autònoma de Barcelona, Barcelona, Spain
School of Science and Centre for Marine Ecosystems Research, Edith
Cowan University, Joondalup, Western Australia, Australia
Gillian Stewart
CORRESPONDING AUTHOR
School of Earth and Environmental Sciences, Queens College, City
University of New York, Flushing, USA
Earth and Environmental Sciences, the Graduate Center, City
University of New York, New York, USA
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Cited
11 citations as recorded by crossref.
- Combined Use of Short-Lived Radionuclides (234Th and 210Po) as Tracers of Sinking Particles in the Ocean M. Roca-Martí & V. Puigcorbé 10.1146/annurev-marine-041923-013807
- Transport Bias by Ocean Currents in Sedimentary Microplankton Assemblages: Implications for Paleoceanographic Reconstructions P. Nooteboom et al. 10.1029/2019PA003606
- Unexpectedly high dissolved210Pb in coastal groundwaters: Is submarine groundwater discharge important in coastal sea? Q. Zhong et al. 10.1016/j.chemgeo.2022.121165
- 210Po/210Pb Disequilibria and Its Estimate of Particulate Organic Carbon Export Around Prydz Bay, Antarctica H. Hu et al. 10.3389/fmars.2021.701014
- Bismuth-210, its parent, and daughter and their use as particle tracers in aquatic systems J. Waples 10.1016/j.marchem.2021.104072
- The 210Po/210Pb method to calculate particle export: Lessons learned from the results of three GEOTRACES transects Y. Tang & G. Stewart 10.1016/j.marchem.2019.103692
- Contrasting behaviors of 210Po, 210Pb and 234Th in the East China Sea during a severe red tide: Enhanced scavenging and promoted fractionation Q. Zhong et al. 10.1007/s13131-021-1958-0
- Carbon and silica fluxes during a declining North Atlantic spring bloom as part of the EXPORTS program S. Clevenger et al. 10.1016/j.marchem.2023.104346
- 210Po and 210Pb distributions during a phytoplankton bloom in the North Atlantic: Implications for POC export E. Horowitz et al. 10.1016/j.dsr.2020.103339
- 210Po-210Pb Disequilibrium in the Western North Pacific Ocean: Particle Cycling and POC Export Q. Zhong et al. 10.3389/fmars.2021.700524
- Distributions of total and size-fractionated particulate <sup>210</sup>Po and <sup>210</sup>Pb activities along the North Atlantic GEOTRACES GA01 transect: GEOVIDE cruise Y. Tang et al. 10.5194/bg-15-5437-2018
10 citations as recorded by crossref.
- Combined Use of Short-Lived Radionuclides (234Th and 210Po) as Tracers of Sinking Particles in the Ocean M. Roca-Martí & V. Puigcorbé 10.1146/annurev-marine-041923-013807
- Transport Bias by Ocean Currents in Sedimentary Microplankton Assemblages: Implications for Paleoceanographic Reconstructions P. Nooteboom et al. 10.1029/2019PA003606
- Unexpectedly high dissolved210Pb in coastal groundwaters: Is submarine groundwater discharge important in coastal sea? Q. Zhong et al. 10.1016/j.chemgeo.2022.121165
- 210Po/210Pb Disequilibria and Its Estimate of Particulate Organic Carbon Export Around Prydz Bay, Antarctica H. Hu et al. 10.3389/fmars.2021.701014
- Bismuth-210, its parent, and daughter and their use as particle tracers in aquatic systems J. Waples 10.1016/j.marchem.2021.104072
- The 210Po/210Pb method to calculate particle export: Lessons learned from the results of three GEOTRACES transects Y. Tang & G. Stewart 10.1016/j.marchem.2019.103692
- Contrasting behaviors of 210Po, 210Pb and 234Th in the East China Sea during a severe red tide: Enhanced scavenging and promoted fractionation Q. Zhong et al. 10.1007/s13131-021-1958-0
- Carbon and silica fluxes during a declining North Atlantic spring bloom as part of the EXPORTS program S. Clevenger et al. 10.1016/j.marchem.2023.104346
- 210Po and 210Pb distributions during a phytoplankton bloom in the North Atlantic: Implications for POC export E. Horowitz et al. 10.1016/j.dsr.2020.103339
- 210Po-210Pb Disequilibrium in the Western North Pacific Ocean: Particle Cycling and POC Export Q. Zhong et al. 10.3389/fmars.2021.700524
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Short summary
Oceanographers try to understand the ocean’s role in the global carbon cycle. Trace levels of natural radionuclides can inform this connection and their half-lives provide an estimate of the timing of processes. We used the 210Po and 210Pb pair to examine the export of carbon from the surface ocean to depth along the GEOVIDE GEOTRACES cruise track. We found that the flux was regionally variable, that upwelling was an important regional factor, and that both large and small particles drove flux.
Oceanographers try to understand the ocean’s role in the global carbon cycle. Trace levels of...
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