Dataset: CTD Niskin bottle data from research cruises FKt230602 and FKt231202 on R/V Falkor (too) in the Central Eastern Pacific Ocean, offshore Costa Rica from June to December 2023

The Schmidt Ocean Institute (SOI) CTD-Rosette sampler was used to conduct full-depth water column profiles. Water samples were taken from the Niskins for analysis of phytoplankton, carbonate chemistry, and nutrients. These data will be made available as separate datasets.

The system did not show any inconsistency except for some spikes in the Conductivity sensor 1, but this was seen only in one cast. Because of the depth range, the PAR sensor was not used. CTD data were processed according to the Ocean Best Practices protocol (CalCOFI, 2019, DOI: http://dx.doi.org/10.25607/OBP-1611), using the SBE Data Processing software (version 7.26.7) with the following steps:

1. Data Conversion
2. Window Filter
3. Filter
4. Derive TEOS-10