CHINARE2012: Underway pCO2 Measurements in the West Arctic Ocean

Fugacity of CO2 in sea water and atmosphere was measured aboard the R/V Xue Long during a 57-day expedition from July to September 2012. The system was calibrated every 3 hours with certified gas standards, and data were processed using the pCO2 Sys v126 MatLab program following established oceanographic protocols. This dataset provides concurrent measurements of sea surface temperature, salinity, atmospheric pressure, and the calculated delta between oceanic and atmospheric fCO2.

Use Cases

• Calculating air-sea CO2 flux based on delta fCO2 (fCO2w - fCO2a) and atmospheric pressure.
• Analyzing the relationship between sea surface temperature (SST) and fugacity of CO2 in seawater.
• Investigating spatial and temporal variability of surface ocean pCO2 in the west Arctic Ocean.
• Validating ocean carbon models with in-situ fCO2 measurements from a specific research cruise.

Strengths

• Data collection followed a rigorous calibration protocol using three certified gas standards and a zero gas every 3 hours.
• Processing used a standardized method (pCO2 Sys v126) documented in peer-reviewed literature (Pierrot et al., 2009).
• Provides a coherent time-series from a dedicated 57-day research expedition with a clear spatial focus (west Arctic Ocean).

Limitations

• Column names and exact row count are not provided in any source, limiting immediate understanding of data structure.
• Conflicting 'last updated' dates (2026-03-05 vs. 2012-09-12) create uncertainty about metadata maintenance.
• License and author information are absent from all platform entries.

Provenance

Source

5th Chinese National Arctic Research Expedition (CHINARE2012) aboard the R/V Xue Long, data hosted by NOAA NCEI.

Collection Method

Underway surface measurements from a ship-based system, processed with MatLab program pCO2 Sys v126.

Time Range

2012-07 17 to 2012 09-12

Freshness

2026-03-05 23:05:45.378191

Geography

West Arctic Ocean