Compiled global dataset of PIC/POC and bSi concentrations measured by in situ pumps on multiple research cruises conducted from between 1973 and 2013

Abstract

This dataset is a compiled global dataset of inorganic and organic carbon and biogenic silica concentrations measured by in situ pumps. We merged the Multiple Unit Large Volume in-situ Filtration System (MULVFS, Bishop et al. 1985) LVP PIC, POC, and bSi dataset published partially in Lam et al. 2011 with new data collected using McLane in-situ pumps equipped with two size-fractionating filters during the GEOTRACES program. The filter sizes generally consist of a 51 micrometer (μm) or 53μm pre-filter that collects large particles, followed by a 0.8μm or 1μm filter that collects smaller particles. We annotate large size fraction particles (>53μm or >51μm) as "LSF", and small size fraction particles (1-53μm or 0.8-51μm) denoted "SSF" (small size fraction).

For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/883965