North Atlantic Ocean CTD and Bottle Cast Measurements from 1902 to 1999

Physical and chemical oceanographic data collected from CTD and bottle casts across the North Atlantic Ocean. The dataset contains parameters including water depth, temperature, salinity, alkalinity, pH, and concentrations of chlorophyll, oxygen, and nutrients. Data were gathered by multiple platforms and contributed to NOAA's National Centers for Environmental Information, with records spanning from August 1902 to February 1999.

Use Cases

• Analyze temperature and salinity time series to study long-term ocean warming and freshening trends.
• Model relationships between chlorophyll concentration, nutrient levels (phosphate, nitrate, ammonium), and dissolved oxygen.
• Calibrate ocean carbon cycle models using total dissolved inorganic carbon and alkalinity measurements.
• Investigate vertical water column structure by correlating parameters like pH and oxygen with water depth.

Strengths

• Covers a long temporal range of nearly a century (1902-1999).
• Includes multiple key chemical and physical parameters per observation.

Limitations

• Specific row count, spatial resolution, and data collection frequency are unknown.
• Data from early 20th century may have higher measurement uncertainty compared to modern records.
• Potential for spatial and temporal gaps due to collection from multiple, unspecified platforms.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI).

Collection Method

Collected from Conductivity, Temperature, Depth (CTD) sensors and water sample bottle casts from multiple oceanographic platforms.

Time Range

05 August 1902 to 11 February 1999

Freshness

Data collection ended in February 1999; it is a historical archive.

Geography

North Atlantic Ocean