SOYO-MARU Surface Carbon Dioxide and Oceanic Variables in the North Pacific

From December 2013 to July 2014, the research vessel SOYO-MARU collected surface underway data across the Japan Sea, North Pacific Ocean, and Philippine Sea. The dataset contains measurements of the partial pressure of carbon dioxide in seawater, salinity, sea surface temperature, and barometric pressure, gathered using a CO2 gas analyzer. It comprises data from seven distinct research cruises identified by specific cruise IDs.

Use Cases

• Calculating air-sea CO2 flux based on partial pressure measurements and meteorological data.
• Analyzing seasonal variability of surface ocean carbon parameters across the western Pacific.
• Validating and calibrating satellite-derived sea surface temperature and salinity products.
• Studying ocean acidification trends using in-situ pCO2 and salinity data.
• Correlating barometric pressure with oceanic conditions for regional weather and climate models.

Strengths

• Data covers a specific seven-month time range from 2013-12-06 to 2014-07-10.
• Includes measurements from seven distinct research cruises, providing spatial coverage across three marine regions.
• Cross-platform presence on NASA EarthData and Data.gov signals established curation and importance.

Limitations

• Key metadata such as row count, file size, license, and specific column names are unavailable across all sources.
• The two NASA EarthData entries conflict on the 'last updated' date (2014-07-10 vs. 2026-03-06), creating provenance uncertainty.
• Documentation is sparse, with no detailed data dictionary or instrument calibration information provided.

Provenance

Source

Tadafumi Ichikawa and Tsuneo Ono of the National Research Institute of Fisheries Science

Collection Method

Surface underway observations collected from the SOYO-MARU vessel using a Carbon dioxide (CO2) gas analyzer and other instruments.

Time Range

2013-12-06 to 2014-07-10

Freshness

2026-03-06 00:21:32.030780

Geography

Japan Sea, North Pacific Ocean, Philippine Sea