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On the assessment of sinking particle fluxes from in situ particle size distributions

On the assessment of sinking particle fluxes from in situ particle size distributions

This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.

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Authors

Elena Ceballos Romero , Ken Buesseler, Erik Fields, Rainer Kiko, Margaret Estapa , Lee Karp-Boss...  more

Abstract

The biological carbon pump plays a crucial role in the global carbon cycle, particularly through sinking particles carrying carbon to deep waters. The Underwater Vision Profilers (UVP) is widely used for studying particle properties. UVP-based particulate organic carbon (POC) flux is typically derived from particle size distributions (PSDs) assuming size dependent sinking rates and carbon content. This approach, the “classic UVP method”, calibrates PSD-based flux against sediment trap flux data that are not necessarily co-located in space or time. We put forth a “modified UVP method” that combines a large data set of UVP measurements calibrat...  more

DOI

https://doi.org/10.31223/X5899D

Subjects

Biogeochemistry, Earth Sciences, Other Earth Sciences

Keywords

Biological carbon pump, particulate organic carbon, particle imaging, sediment traps, thorium-234, ocean carbon cycle, sinking carbon export fluxes

Dates

Published: 2024-12-16 22:52

Last Updated: 2024-12-17 03:50

License

CC BY Attribution 4.0 International