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Environmental Sources
Marine & Wildlife
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Sinking Organic Particles in the Ocean—Flux Estimates From in situ Optical Devices
Frontiers in Marine Science2020
143 citations
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Score: 45
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Uta Passow,
Sarah L. C. Giering,
Uta Passow,
Morten Hvitfeldt Iversen,
Adrian Burd,
Uta Passow,
Catarina R. Marcolin,
Catarina R. Marcolin,
Catarina R. Marcolin,
Morten Hvitfeldt Iversen,
Dhugal J. Lindsay,
Morten Hvitfeldt Iversen,
Emma L. Cavan,
Catarina R. Marcolin,
Catarina R. Marcolin,
Dhugal J. Lindsay,
Sünnje L. Basedow,
Dhugal J. Lindsay,
Dhugal J. Lindsay,
Dhugal J. Lindsay,
Sünnje L. Basedow,
Nathan Briggs,
Adrian Burd,
Jean‐Olivier Irisson
Jean‐Olivier Irisson
Jean‐Olivier Irisson
Morten Hvitfeldt Iversen,
Morten Hvitfeldt Iversen,
Louise Darroch,
Anya M. Waite,
Dhugal J. Lindsay,
Anya M. Waite,
Rainer Kiko,
Uta Passow,
Lionel Guidi,
Rainer Kiko,
Dhugal J. Lindsay,
Jean‐Olivier Irisson
Morten Hvitfeldt Iversen,
Morten Hvitfeldt Iversen,
Dhugal J. Lindsay,
Dhugal J. Lindsay,
Rainer Kiko,
Morten Hvitfeldt Iversen,
Dhugal J. Lindsay,
Morten Hvitfeldt Iversen,
Catarina R. Marcolin,
Morten Hvitfeldt Iversen,
Morten Hvitfeldt Iversen,
Morten Hvitfeldt Iversen,
Jean‐Olivier Irisson
Anya M. Waite,
Lionel Guidi,
Andrew M. P. McDonnell,
Anya M. Waite,
Klas Ove Möller,
Uta Passow,
Sandy Thomalla,
Nathan Briggs,
Thomas W. Trull,
Anya M. Waite,
Lionel Guidi,
Rainer Kiko,
Klas Ove Möller,
Jean‐Olivier Irisson
Summary
This review examines how optical instruments deployed on ships and autonomous platforms can estimate the downward flux of sinking organic particles in the ocean, which plays a key role in sequestering carbon dioxide in the deep sea. Optical approaches offer far greater spatial and temporal coverage than traditional bottle or trap sampling in the mesopelagic zone.
Study Type
Environmental
Optical particle measurements are emerging as an important technique for understanding the ocean carbon cycle, including contributions to estimates of their downward flux, which sequesters CO2 in the deep sea. Optical instruments can be used from ships or installed on autonomous platforms, delivering much greater spatial and temporal coverage of particles in the mesopelagic zone of the ocean than traditional techniques, such as sediment traps. Technologies to image particles have advanced greatly over the last two decades, but the quantitative translation of these immense datasets into biogeochemical properties remains a challenge. In particular, advances are needed to enable the optimal translation of imaged objects into carbon contents and sinking velocities. In addition, different devices often measure different optical properties, leading to difficulties in comparing results. Here we provide a practical overview of the challenges and potential of using these instruments, as a step towards improvement and expansion of their applications.