High-Resolution Ocean CTD Profiles from Redoubt 1980-1981

Nearly continuous oceanographic profiles from the vessel REDOUBT, measuring temperature, salinity, density, and other parameters in the coastal waters of Southeast Alaska and British Columbia. The data was processed by the National Oceanographic Data Center (NODC) into the standard F022 format. Measurements were collected over an 11-month period from June 1980 to May 1981.

Use Cases

• Analyzing vertical water column structure using temperature and salinity profiles at depth intervals as fine as 1 meter.
• Studying coastal ocean density variations through computed sigma-t values.
• Correlating oceanographic conditions with surface meteorological data reported at the time of each cast.
• Mapping spatial distribution of parameters like dissolved oxygen or transmissivity across station positions.

Strengths

• Data provides high-resolution, nearly continuous profiles with potential sampling at 1-meter depth intervals.
• Records include cruise, instrument, position, date, time, and environmental metadata for each station.
• Coverage spans a specific 11-month operational period from 1980-06-10 to 1981-05-07.

Limitations

• Key quantitative details like row count, file size, and specific column names are unavailable from all sources.
• Data freshness is unclear due to conflicting last updated dates: one source shows 2026-03 05, while another shows the collection end date of 1981-05-07.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), from NODC Accession 8100586.

Collection Method

Collected using CTD (Conductivity-Temperature-Depth) and STD (Salinity-Temperature-Depth) instruments lowered and raised from the vessel REDOUBT, processed to NODC standard F022 format.

Time Range

1980-06-10 to 1981-05-07

Freshness

2026-03-05 23:01:25.584675

Geography

Coastal Waters of Southeast Alaska and British Columbia.