High-Resolution CTD/STD Profiles from Gulf of Alaska

High-resolution CTD/STD data profiles were collected by the RV Alpha Helix in the Gulf of Alaska and North Pacific Ocean. The dataset, processed by NODC to its F022 standard format, contains nearly continuous measurements of temperature, salinity, density, and other parameters from May 11 to May 17, 1986. It is curated and published by NOAA's National Centers for Environmental Information.

Use Cases

• Analyzing vertical profiles of temperature and salinity (`temperature`, `salinity`) to study water mass structure.
• Calculating density (`sigma-t`) for oceanographic modeling of currents and mixing processes.
• Correlating environmental conditions (`meteorological data`, `sea surface conditions`) with subsurface measurements from specific stations.
• Investigating dissolved oxygen or water clarity trends (`dissolved oxygen`, `transmissivity`) in coastal Alaskan waters.

Strengths

• Data is processed to the NODC's high-resolution F022 standard format, ensuring a consistent structure.
• Profiles offer fine vertical resolution, with data potentially reported at depth intervals as fine as 1 meter.
• Includes ancillary station metadata such as cruise information, position, date, time, and environmental conditions.

Limitations

• Specific column names, row counts, and file sizes are not provided by any source platform.
• The dataset's license information is not declared across any of the source platforms.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI)

Collection Method

Collected via CTD/STD instruments deployed from RV Alpha Helix and processed by NODC.

Time Range

1986-05-11 to 1986-05-17

Freshness

2026-04-01 15:06:23.200232

Geography

Gulf of Alaska, North Pacific Ocean, Coastal Waters of S. Alaska