Xue Long Arctic Ocean Carbon Dioxide and Sea Surface Measurements

NODC Accession 0109932 contains underway surface observations from the Chinese research vessel XUE LONG during the Xue_Arctic08 cruise. The dataset includes measurements of carbon dioxide partial pressure in air and water, barometric pressure, salinity, and sea surface temperature collected with CO2 gas analyzers and equilibrators. Data were collected in the Arctic Ocean, Beaufort Sea, Bering Sea, and Chukchi Sea from July to September 2008 by researchers from NOAA AOML, the State Oceanic Administration, and the University of Delaware.

Use Cases

• Calculating air-sea CO2 flux gradients based on partial pressure difference measurements.
• Analyzing correlations between sea surface temperature and carbon dioxide partial pressure in Arctic waters.
• Validating regional carbon cycle models using in-situ salinity and barometric pressure data.
• Studying seasonal carbon dynamics in the Beaufort and Bering Seas using time-series underway data.

Strengths

• Data collected via specific, named instruments: Carbon dioxide (CO2) gas analyzer and Shower head chamber equilibrator.
• Cross-platform presence on NASA Earthdata and Data.gov indicates established curation and importance.
• Involves multiple collaborating institutions: NOAA AOML, State Oceanic Administration, and University of Delaware.

Limitations

• Conflicting metadata: one source lists a last updated date of 2026-03-05, while others list 2008 dates, suggesting potential metadata freshness issues.
• Column names and exact row counts are unknown across all sources, limiting immediate assessment of data structure and scale.
• Spatial coverage descriptions vary slightly between sources (e.g., inclusion of Chukchi Sea).

Provenance

Source

NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML), State Oceanic Administration; Third Institute of Oceanography, University of Delaware.

Collection Method

Underway - surface observations collected from the research vessel XUE LONG.

Time Range

2007-11-12 to 2008-09-11

Freshness

2026-03-05 23:29:36.617632

Geography

Arctic Ocean, Beaufort Sea, Bering Sea, Chukchi Sea, Bali Sea, Celebes Sea, East China Sea, Indian Ocean, Java Sea, Makassar Strait, Philippine Sea, Rio de la Plata, Sea of Japan, South Atlantic Ocean.