GU1902 Cruise: Ocean Acidification Measurements in the North Atlantic, 2019

Profile and discrete water samples collected during NOAA Ship Gordon Gunter cruise GU1902 from August 15 to August 30, 2019. Measurements include dissolved inorganic carbon, total alkalinity, pH, and nutrients from the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight. The data supports the NOAA Ocean Acidification Program's coastal monitoring and research objectives.

Use Cases

• Monitor coastal ocean acidification trends based on dissolved inorganic carbon and pH measurements.
• Assess impacts on calcifying organisms based on carbonate chemistry parameters.
• Analyze nutrient dynamics and their relationship with carbon chemistry in coastal waters.
• Validate regional ocean acidification models based on discrete water column profiles.

Strengths

• Data collected from a specific NOAA research cruise (GU1902) with a known time range (2019-08-15 to 2019-08-30).
• Samples analyzed by authoritative laboratories (AOML and University of Maine).
• Profile observations include measurements from three distinct depths (surface, mid-depth, near bottom).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the cruise track in the northeastern Atlantic shelf.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Water samples collected at select stations during the Ecosystem Monitoring Cruise (ECOMON) and analyzed by AOML and University of Maine.

Time Range

2019-08-15 to 2019-08-30

Freshness

Last updated 2026-03-05 22:54:25.567666; freshness should be verified.

Geography

North Atlantic Ocean, Gulf of Maine, Georges Bank, Mid-Atlantic Bight