CHINARE2014: Underway CO2 Measurements in the West Arctic Ocean

The 6th Chinese National Arctic Research Expedition (CHINARE2014) collected underway surface and atmospheric CO2 data from July 27 to September 9, 2014. Measurements include fugacity of CO2 in seawater and atmosphere, sea surface temperature, salinity, atmospheric pressure, and the delta between them. The data was processed using the pCO2 Sys v126 MATLAB program following established scientific procedures.

Use Cases

• Calculating air-sea CO2 flux based on delta fCO2 measurements.
• Analyzing spatial patterns of ocean carbon uptake using underway surface fCO2.
• Studying Arctic Ocean acidification trends using sea surface temperature and salinity alongside fCO2.
• Calibrating or validating ocean carbon models with in-situ fugacity of CO2 data.

Strengths

• Data collection followed a rigorous calibration protocol using three certified gas standards and a zero gas every 3 hours.
• The dataset has a precise temporal coverage of a 44-day research expedition.
• It is hosted on multiple authoritative platforms (Data.gov, NASA Earthdata), indicating validation and importance.

Limitations

• Key metadata such as row count, file size, and specific column names are unavailable across all sources.
• The license information is not provided, which restricts clarity on reuse terms.
• Platforms disagree on the last update date (2014-09-09 vs. 2026-03-05), suggesting potential metadata inconsistencies.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Measured during the CHINARE2014 expedition on R/V Xue Long, processed with MATLAB program pCO2 Sys v126.

Time Range

2014-07-27 to 2014-09-09

Freshness

2026-03-05 23:19:24.481264

Geography

West Arctic Ocean