Ocean Acidification Water Chemistry Validation Samples from Washington Coast Cruise TN264

Discrete profile measurements for the Chá Bă mooring time-series validation were collected on cruise TN264 aboard the R/V Thomas G. Thompson on 2011-05-22. The dataset includes dissolved inorganic carbon, total alkalinity, temperature, salinity, oxygen, and nutrient data from Niskin bottle samples and CTD sensors. This effort was conducted by NOAA's Ocean Acidification Program in support of coastal monitoring and conforms to Global Ocean Acidification Observing Network guidelines.

Use Cases

• Validate moored time-series observations of ocean acidification based on discrete water sample data.
• Analyze relationships between dissolved inorganic carbon, total alkalinity, and physical parameters like temperature and salinity.
• Model coastal carbonate chemistry dynamics in the California Current System based on nutrient and oxygen concentrations.
• Assess data quality and sensor performance for climate-quality monitoring networks.

Strengths

• Data conforms to climate-quality monitoring guidelines of the Global Ocean Acidification Observing Network.
• Includes multiple correlated parameters (DIC, TA, nutrients, CTD) from the same times and places for validation.
• Part of a larger coastal observation dataset spanning from February 2008 to October 2018.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete water samples collected in Niskin bottles throughout the water column, with laboratory analyses for DIC, oxygen, nutrients, and total alkalinity; CTD casts measured temperature, conductivity, pressure, and oxygen.

Time Range

2011-05-22 (cruise date). The larger dataset spans February 2008 to October 2018.

Freshness

Last updated 2026-03 05 22:31:24.357264; freshness should be verified.

Geography

Off La Push, Washington, in the California Current System, North Pacific Ocean.