R/V Soyo-Maru 2020 pCO2 and Sea Surface Measurements

Surface underway data from the R/V Soyo-Maru covers the North Pacific Ocean, East China Sea, Japan Sea, and Sea of Okhotsk from June 10 to August 5, 2020. Measurements include the partial pressure of carbon dioxide in both the atmosphere and water, alongside sea surface salinity, temperature, and barometric pressure. Data collection utilized a CO2 gas analyzer and a shower head chamber equilibrator for autonomous CO2 measurement.

Use Cases

• Quantifying ocean carbon sink strength based on underway pCO2 measurements.
• Analyzing regional sea surface temperature and salinity gradients from ship-track data.
• Modeling air-sea CO2 flux dynamics using concurrent atmospheric and aquatic pCO2 data.
• Calibrating satellite-derived sea surface data with in-situ salinity and temperature readings.

Strengths

• Provides a continuous, two-month time series of surface ocean and atmospheric measurements from a specific research cruise.
• Includes directly measured, co-located parameters (pCO2, SST, SSS, pressure) crucial for carbon flux calculations.
• Data is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating vetting and persistence.

Limitations

• Critical metadata is missing: exact column names, row count, file size, and license information are not provided.
• Conflicting 'last updated' timestamps exist between sources (2020-08-05 and 2026-03-06), creating uncertainty about data currency.
• The dataset's spatial coverage is limited to a single ship track over a specific two-month period in 2020.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI)

Collection Method

Surface underway measurements collected from the R/V Soyo-Maru using a CO2 gas analyzer and shower head chamber equilibrator.

Time Range

2020-06-10 to 2020-08-05

Freshness

2026-03-06 00:02:09.814286

Geography

North Pacific Ocean, East China Sea, Japan Sea, Sea of Okhotsk