PACIFICA: CTD and Bottle Oceanographic Profiles from the Hakuho Maru, 1991

PACIFICA_49HH19910917 contains hydrographic profile data from a 16-day cruise in the North and South Pacific Ocean during September-October 1991. The dataset includes measurements of dissolved oxygen, salinity, water temperature, potential temperature, and hydrostatic pressure collected using CTD and bottle instruments. This data was part of the international PACIFICA project for synthesizing ocean interior carbon parameters in the Pacific.

Use Cases

• Analyzing vertical water column structure based on CTD profiles of temperature, salinity, and pressure.
• Studying dissolved oxygen distribution for biological productivity and ventilation assessments.
• Calibrating ocean carbon models using the hydrographic parameters from the PACIFICA synthesis project.
• Investigating water mass formation and circulation in the North and South Pacific Ocean.

Strengths

• Data originates from a defined international scientific project (PACIFICA) supported by PICES.
• Provides specific instrument details (CTD and bottle) and a precise 16-day collection period.
• Cross-platform presence on NOAA and NASA portals indicates established curation and importance.

Limitations

• Column names and exact data structure are unknown, limiting immediate usability.
• Conflicting institutional affiliations for data collectors (JAMSTEC/MIO/ORI vs. Hokkaido/University of Tokyo).
• Lacks explicit metadata on row count, file size, license, and specific carbon parameter measurements.

Provenance

Source

Shuichi Watanabe and Keisuke Taira; collected from R/V Hakuho Maru.

Collection Method

Discrete sample and profile observations using CTD and bottle instruments.

Time Range

1991-09 17 to 1991-10-02

Freshness

2026-03-05 23:48:57.035067

Geography

North Pacific Ocean and South Pacific Ocean