SEQUOIA SCIENTIFIC - Laser Granulometer LISST-100X

Operational overview and field deployment

Instrument role in particle size distribution analysis

SEQUOIA SCIENTIFIC LISST-100X is designed for in-situ measurement of suspended particle size distribution in aquatic environments. It is used in oceanographic, coastal, and freshwater studies where sediment characterization is required.

Measurement capabilities and usage context

This instrument uses laser diffraction to measure particle size distributions across a defined range of suspended sediments. It provides quantitative data on particle concentration and size classes, supporting studies of sediment transport, turbidity dynamics, and water column structure.

Operational environment

The system is designed for deployment in marine, coastal, estuarine, and freshwater environments depending on configuration. It is suitable for both fixed and profiling deployments where in-situ sediment measurements are required.

System integration role

Within a sediment monitoring system, it functions as a dedicated optical measurement instrument for particle characterization. It is often integrated with multiparameter probes, CTDs, or moored systems to complement physical and chemical water column data.

Deployment usage

Deployment involves mounting the instrument on profiling frames, moorings, or research platforms depending on the application. It operates autonomously during immersion, continuously measuring suspended particle distributions.

Typical users

It is commonly used by oceanographic institutes, sedimentologists, environmental agencies, and engineering teams conducting sediment transport and coastal morphology studies.