In Situ Particle Measurements Deemphasize the Role of Size in Governing the Sinking Velocity of Marine Particles.

ABSTRACT: Sinking particles are important in delivering carbon to the deep ocean where it may be stored out of contact with the atmosphere. Whilst particle sinking velocities are known to be influenced by a multitude of factors, size-based parameterizations remain common in biogeochemical models and in the methods used to determine particulate fluxes from autonomous platforms. Here we carried out an extensive literature review (62 data sets) into the size-sinking velocity relationship, and find the relationship is much weaker for studies examining particles in situ (median R ² = 0.09) compared with ex situ studies (median R ² = 0.35). This discrepancy may be because particles examined in the laboratory have more uniform properties than those studied in situ. Our r

SUBMITTER: Williams JR 

PROVIDER: S-EPMC9786660 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature