In situ optical measurement of particles in sediment plumes generated by a pre-prototype polymetallic nodule collector.

ABSTRACT: This study presents in situ, high-resolution optical measurements of particle size distributions (PSD) within sediment plumes generated by a pre-prototype deep seabed nodule collector vehicle operating in the abyssal Pacific Ocean. These measurements were obtained using a cutting-edge instrument, the LISST-RTSSV sensor. The data collected in situ reveal marked differences compared to previously reported laboratory-based, ex situ measurements. The grain size and other key particle shape characteristics are found to be dependent on multiple factors, including the collector vehicle maneuvers, the time elapsed following sediment discharge, and the complex hydrodynamic processes that generate the sediment in suspension. Significantly, the PSD from a highly complex succession of straight-line ma

SUBMITTER: Mousadik SE 

PROVIDER: S-EPMC11470929 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature