TTO_TAS Expeditions: Ocean Carbon and Hydrographic Measurements in the Atlantic, 1982-1983

TTO_TAS_Expeditions data includes chemical, physical, and profile measurements from the R/V Knorr in the Caribbean Sea, North Atlantic, and South Atlantic Ocean from December 1982 to February 1983. The dataset contains measurements for dissolved inorganic carbon, alkalinity, oxygen, nutrients, temperature, salinity, and isotopes collected using CTD and bottle instruments. Stewart C. Sutherland and Taro Takahashi of Lamont-Doherty Earth Observatory and Claes Rooth of the Rosenstiel School of Marine and Atmospheric Science collected the data.

Use Cases

• Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and alkalinity measurements.
• Studying deep water formation and circulation using tritium and carbon-14 isotope tracers.
• Analyzing nutrient distributions and their relationship to biological productivity based on nitrate, phosphate, and silicate data.
• Calibrating and validating ocean biogeochemical models using concurrent physical and chemical profile data.

Strengths

• Includes multiple key variables for carbon cycle studies, specifically dissolved inorganic carbon, alkalinity, and carbon-14.
• Data collection covers a specific, well-documented research cruise (TTO_TAS_Expeditions) from 1982-12-01 to 1983-02-18.
• Measurements were taken by researchers from established institutions: Lamont-Doherty Earth Observatory and Rosenstiel School of Marine and Atmospheric Science.

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 expedition in 1982-1983; temporal coverage is limited.

Provenance

Source

Lamont-Doherty Earth Observatory (LDEO) and Rosenstiel School of Marine and Atmospheric Science, via the National Oceanic and Atmospheric Administration.

Collection Method

Discrete sample and profile observations using CTD and bottle instruments.

Time Range

1982-12-01 to 1983-02-18

Freshness

Metadata was last updated 2026-03-05 23:34:58.391197; data collection ended in 1983.

Geography

Caribbean Sea, North Atlantic Ocean, South Atlantic Ocean