2015 Hawaii Ocean Experiment - Legacy 2A, Water Column Data

This dataset consists of samples taken at various depths in the water column from niskin bottles attached to a CTD rosette on the HOE Legacy 2A Diel cruise in 2015. The objective of the cruise was to deploy and follow free-drifting surface drifters in the vicinity of the Hawaii Ocean Time-series (HOT) station (Station ALOHA; defined as a circle with a 6 nautical mile radius centered at 22° 45N, 158°W). The overall goal was to conduct a comprehensive analysis of the diel patterns in phytoplankton physiology and biogeochemical cycling in near-surface waters of the oligotrophic North Pacific Ocean.  Such diel patterns in ecology are particularly relevant in biological oceanographic research where the planktonic biomass turns over on timescales of days.