CCGS Amundsen Cruise: Surface pCO2 in the Canadian Arctic Archipelago

National Oceanic and Atmospheric Administration data from the 2010 CCGS Amundsen research cruise provides surface underway measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature, salinity, and barometric pressure. The dataset covers a cruise track through the Canadian Arctic Archipelago, Baffin Bay, and the Beaufort Sea from August to October 2010. Measurements were collected autonomously using a CO2 gas analyzer and shower head chamber equilibrator.

Use Cases

• Calculating air-sea CO2 flux based on underway pCO2 and meteorological data.
• Analyzing spatial gradients of ocean acidification parameters in the Arctic.
• Validating regional carbon cycle models with in-situ surface ocean observations.
• Investigating the relationship between sea surface temperature and pCO2 in Arctic waters.

Strengths

• Data has a precise temporal coverage from 2010-08-06 to 2010-10-15.
• Includes specific, high-value chemical and physical parameters relevant to carbon cycle studies.
• Cross-platform presence on datagov and nasa_earthdata signals importance and accessibility.

Limitations

• Column names and exact data structure are not provided in the available metadata.
• Conflicting 'last updated' dates (2010 vs. 2026) create uncertainty about data versioning.
• Dataset size (rows, file size) is unknown, limiting assessment of scope.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Surface underway autonomous measurement via CO2 gas analyzer and equilibrator aboard the CCGS Amundsen.

Time Range

2010-08-06 to 2010-10-15

Freshness

2026-03-06 00:03:01.998278

Geography

Canadian Arctic Archipelago, Northwestern Passages, Baffin Bay, Beaufort Sea