Instrument: Pump surface
A source of uncontaminated near-surface seawater pumped onto the deck of the research vessel that can be sampled and analyzed. This pumped seawater supply is from an over-the-side pumping system, and is therefore different from the vessel underway seawater system.
NASA's surface peristaltic pump was used to collect surface samples from station 1. WHOI's GEOTRACES pump was used to collect surface samples from all other stations.