GLODAPv2 Philippine Sea CTD and Bottle Data, 1994

NCEI Accession 0143635 captures a 5-day oceanographic survey from the R/V Kaiyo in the Philippine Sea. Discrete bottle samples and continuous CTD profiles provide measurements for ten variables, including the rare tracer delta carbon-14. This dataset forms part of the international GLODAPv2 synthesis for calibrating ocean carbon models.

Use Cases

• Calibrating ocean carbon cycle models using delta carbon-14 measurements.
• Studying nutrient distributions (nitrate, phosphate, silicate) in the western Pacific Ocean.
• Validating hydrographic models with concurrent CTD measurements of temperature, salinity, and pressure.
• Assessing dissolved oxygen levels and potential hypoxia in a specific marine region.

Strengths

• Includes the rare oceanographic tracer delta carbon-14, a key variable for carbon cycle studies.
• Data collection combines high-resolution CTD profiles with discrete bottle samples for calibration.
• Dataset is integrated into the authoritative GLODAPv2 global synthesis project.

Limitations

• Key metadata is missing: row count, file size, column names, and license are not provided by any source.
• Sources conflict on the affiliation of the principal investigator (JAMSTEC vs. Marine Work Japan Co. Ltd.).
• The temporal coverage is very brief, limited to a single 5-day cruise in 1994.

Provenance

Source

Japan Agency for Marine-Earth Science and Technology (JAMSTEC) / Marine Work Japan Co. Ltd.

Collection Method

Discrete sample and profile observations collected using CTD and bottle instruments aboard the R/V Kaiyo.

Time Range

1994-02-12 to 1994-02-16

Freshness

Metadata was last updated on 2026-03-06 according to Data.gov, though the underlying data is from 1994.

Geography

Philippine Sea, Pacific Ocean