Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables coll

Discrete sample and profile data collected from the HUDSON research vessel in the Davis Strait, Gulf of St. Lawrence, Labrador Sea, and North Atlantic Ocean from 2013-05-07 to 2013-05-28. These data include dissolved inorganic carbon, total alkalinity, pH, dissolved oxygen, nutrients, and chlorofluorocarbons. The data were collected by Igor Yashayaev and Kumiko Azetsu-Scott of the Bedford Institute of Oceanography as part of the International CLIVAR Global Ocean Carbon and Repeat Hydrography Program.

Use Cases

• Modeling ocean acidification based on pH, dissolved inorganic carbon, and total alkalinity measurements.
• Studying deep-water formation and circulation using chlorofluorocarbon (CFC-12) and sulfur hexafluoride (SF6) tracer data.
• Analyzing nutrient cycling and primary productivity based on nitrate, nitrite, phosphate, and silicate concentrations.
• Calibrating biogeochemical models using co-located measurements of temperature, salinity, and dissolved oxygen.

Strengths

• Data covers multiple key ocean basins (Davis Strait, Gulf of St. Lawrence, Labrador Sea, North Atlantic) during a specific cruise in May 2013.
• Includes over a dozen co-located chemical and physical variables relevant for carbon cycle and climate studies.
• Collected as part of the systematic International CLIVAR Repeat Hydrography Program, which follows standardized protocols.

Limitations

• Column-level documentation and sample data are unavailable, making field semantics and data structure uncertain.
• Row count and file size are unknown, which limits suitability assessment for large-scale analysis.
• The dataset is a snapshot from a single three-week cruise, limiting temporal scope for trend analysis.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce; collected by researchers at the Bedford Institute of Oceanography.

Collection Method

Discrete sample and profile observations using Alkalinity titrator, CTD, Coulometer, and bottle sampling.

Time Range

2013-05-07 to 2013-05-28

Freshness

Last updated 2026-03-05 23:52:33.985954; freshness should be verified.

Geography

Davis Strait, Gulf of St. Lawrence, Labrador Sea, North Atlantic Ocean