Design and application of a semi-automated filtration system to study the distribution of particulate organic carbon in the water column of a coastal upwelling system

►A new semi-automated filtration system performs filtrations at high frequency. ►The filtration system can be linked to underway/profiling systems. ►High spatial and temporal POC data are feasible with this system. ►POC data can be easily combined with optical measurements. ►Optical/POC characteristics reveal distinct particle pools off Oregon's coast.