PACIFICA: Ocean Interior Carbon and Physical Profile Data

PACIFICA_49HH19930513 contains chemical, physical, and profile data from the North Pacific Ocean, collected during cruise KH93-2 Leg 1 aboard the Hakuho Maru from May 13 to 30, 1993. The dataset includes measurements of dissolved oxygen, hydrostatic pressure, potential temperature, salinity, and water temperature, gathered using CTD and bottle instruments. This data synthesis project was an international collaboration supported by the North Pacific Marine Science Organization (PICES) to study ocean interior carbon parameters.

Use Cases

• Analyzing vertical profiles of dissolved oxygen and temperature to study ocean stratification.
• Calibrating ocean carbon cycle models using discrete water sample measurements.
• Investigating water mass properties and circulation in the North Pacific Ocean.
• Assessing baseline physical and chemical conditions for climate change studies.

Strengths

• Data originates from a defined, international scientific project (PACIFICA) supported by PICES.
• Includes complementary profile (CTD) and discrete sample (bottle) measurements for the same locations.
• Covers a specific, well-documented 18-day research cruise with precise temporal bounds.

Limitations

• Column names and the exact data structure are not provided in the available metadata.
• Conflicting author affiliations are listed (JAMSTEC/MIO/ORI vs. Hokkaido University/University of Tokyo).
• Key metadata such as row count, file size, and license are consistently reported as unknown or null.

Provenance

Source

Shuichi Watanabe and Keisuke Taira, collected during cruise KH93-2 Leg 1.

Collection Method

In-situ measurements using CTD (Conductivity, Temperature, Depth) sensors and water sample bottles.

Time Range

1993-05-13 to 1993-05-30

Freshness

Metadata was last updated on March 5, 2026, though the underlying data is from 1993.

Geography

North Pacific Ocean, from the Hakuho Maru research vessel.