NOAA High-Resolution CTD/STD Profiles from R/V Thompson (1967-1975)

NOAA_NCEI provides high-resolution CTD and STD instrument profiles collected by the R/V THOMAS G. THOMPSON. The dataset covers coastal waters of Southeast Alaska, British Columbia, the Gulf of Alaska, the Gulf of California, and the North Pacific Ocean. Data spans from February 1967 to October 1975 and is processed to the NODC standard F022 format.

Use Cases

• Analyzing vertical profiles of temperature and salinity for water mass identification.
• Studying historical density (sigma-t) variations in coastal and open ocean regions.
• Investigating dissolved oxygen or light transmissivity trends over the 1967-1975 period.
• Correlating oceanographic casts with recorded meteorological and sea surface conditions.

Strengths

• Data provides nearly continuous profiles at fine depth intervals, potentially as fine as 1 meter.
• Coverage spans multiple distinct regions over an 8-year period from 1967 to 1975.
• Processed to a consistent standard (NODC F022 format) ensuring structured comparability.
• Includes ancillary station data like position, date, time, and instrument metadata.

Limitations

• Specific row count, file size, and complete column list are unknown from provided sources.
• Data values may be subject to averaging, filtering, or interpolation as noted in the format description.
• Conflicting 'last updated' dates exist between platforms (2026 vs. 1975), indicating potential metadata inconsistency.

Provenance

Source

NOAA_NCEI (National Oceanic and Atmospheric Administration, National Centers for Environmental Information).

Collection Method

Collected using CTD (Conductivity-Temperature-Depth) and STD (Salinity-Temperature-Depth) instruments deployed from R/V THOMAS G. THOMPSON, processed by NODC.

Time Range

1967-02-05 to 1975-10-09

Freshness

2026-03-05 22:55:58.619437

Geography

Coastal Waters of Southeast Alaska and British Columbia, Gulf of Alaska, Gulf of California, North Pacific Ocean.