North Atlantic Ocean CTD and Station Data from BLUE FIN 1976

Oceanographic station and CTD/STD data from the BLUE FIN cruise in the North Atlantic Ocean. The dataset contains physical-chemical measurements at discrete depth levels, processed to NODC standard formats F022 and C100. Data collection occurred during a specific cruise from July 14 to August 18, 1976.

Use Cases

• Analyzing vertical profiles of temperature and salinity from CTD/STD instruments.
• Studying nutrient distributions (phosphate, silicate, nitrate) and dissolved oxygen levels.
• Correlating oceanographic conditions with meteorological data (air temperature, pressure, wind) recorded at stations.
• Calculating derived parameters like water density (sigma-t) and sound velocity from measured values.
• Examining auxiliary ocean properties such as water color (Forel-Ule scale) and transparency (Secchi disk depth).

Strengths

• Data is processed to established NODC standard formats (F022 and C100), ensuring consistency.
• Includes both directly observed measurements and values interpolated to standard depth levels for comparison.
• Covers a specific, well-documented 35-day research cruise in the North Atlantic Ocean.

Limitations

• Key quantitative details like row count, column names, and file size are unknown across all sources.
• A small conflict exists: the last_updated date on datagov (2026-04-01) is a future date and likely an error, conflicting with the actual data collection end date (1976-08-18).
• The dataset's license information is not provided.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Data collected via multi-bottle Nansen casts and electronic CTD/STD recorders during a research cruise, processed and stored by the National Oceanographic Data Center (NODC).

Time Range

1976-07 14 to 1976-08-18

Freshness

1976-08-18

Geography

North Atlantic Ocean