Salish Sea Carbon and Biogeochemical Profiles from 2018 Norseman II Cruise

Seven time-series stations were occupied in the Salish Sea and adjoining coastal waters of Washington State from 2018-10-16 to 2018-10-19. The dataset contains discrete profile measurements of dissolved inorganic carbon, total alkalinity, temperature, salinity, oxygen, and nutrients, collected via CTD casts and Niskin bottle samples. This effort was conducted by the Washington Ocean Acidification Center, NOAA, and partners to support ocean acidification monitoring.

Use Cases

• Modeling ocean acidification dynamics based on dissolved inorganic carbon and total alkalinity measurements.
• Analyzing water column stratification based on CTD-derived temperature, salinity, and pressure profiles.
• Studying nutrient-oxygen relationships in coastal ecosystems based on discrete oxygen and nutrient concentration data.
• Calibrating and validating regional oceanographic models using synoptic, climate-quality field data.

Strengths

• Data conforms to climate-quality monitoring guidelines of the Global Ocean Acidification Observing Network.
• Includes a synoptic snapshot of seven stations, providing spatial coverage of the Salish Sea.
• Combines high-resolution CTD sensor data with laboratory-analyzed discrete samples for key parameters.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single cruise in October 2018, representing a specific seasonal condition.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete water samples collected via Niskin bottles and CTD casts aboard the R/V Norseman II, with subsequent laboratory analysis.

Time Range

2018-10-16 to 2018-10-19

Freshness

Last updated 2026-03-05 23:30:58.877841; freshness should be verified.

Geography

Salish Sea and adjoining coastal waters, Washington State, USA