Salish Sea Ocean Acidification Cruise Data from 2017

Eleven time-series stations in Washington's Salish Sea and coastal waters provide a synoptic snapshot of ocean acidification parameters. Discrete water samples and CTD casts from the 2017 Sound to Sea cruise measured dissolved inorganic carbon, total alkalinity, nutrients, temperature, salinity, and oxygen. The National Oceanic and Atmospheric Administration collected this data in support of the Washington Ocean Acidification Center and the Global Ocean Acidification Observing Network.

Use Cases

• Modeling carbonate system dynamics based on dissolved inorganic carbon and total alkalinity measurements
• Analyzing vertical water column structure based on CTD cast data for temperature, conductivity, and pressure
• Investigating nutrient-oxygen relationships in coastal waters based on discrete sample analyses
• Assessing spatial variability of ocean acidification indicators across the Salish Sea based on synoptic station data

Strengths

• Data conforms to climate-quality monitoring guidelines of the Global Ocean Acidification Observing Network
• Includes both high-resolution sensor (CTD) data and laboratory-analyzed discrete water samples
• Covers 11 stations providing spatial coverage of the Salish Sea and adjoining coastal waters

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is from a single cruise in October 2017, representing a synoptic snapshot rather than a long-term time series

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete water samples collected via Niskin bottles and analyzed in lab, combined with CTD cast sensor measurements.

Time Range

2017-10-16 to 2017-10-18

Freshness

Last updated 2026-03-06 00:02:46.077824; freshness should be verified

Geography

Salish Sea and adjoining coastal waters in Washington State marine waters