Gulf of Alaska CTD Cast Profiles from R/V Alpha Helix

Physical data from CTD casts collected by the University of Alaska Fairbanks Institute of Marine Science aboard the R/V Alpha Helix in the Gulf of Alaska. The dataset contains vertical profiles of temperature, salinity, fluorescence, and oxygen. Measurements were taken during the Gulf of Alaska-1 (GAK-1) mission from May 30 to June 25, 1995.

Use Cases

• Analyzing vertical water column structure using temperature and salinity profiles.
• Studying phytoplankton biomass distribution via fluorescence measurements.
• Investigating dissolved oxygen levels and potential hypoxic zones.
• Calibrating regional oceanographic models with in-situ CTD data.

Strengths

• Dataset provides four core oceanographic parameters: temperature, salinity, fluorescence, and oxygen.
• Data collection is temporally focused over a 27-day research cruise in 1995.
• Dataset is curated and hosted by NOAA NCEI, a recognized authority.

Limitations

• The exact row count, file size, and specific column names are unavailable from all sources.
• Sources conflict on the last updated date, reporting either 1995-06-25 or 2026-03-05.
• License information is not provided.

Provenance

Source

University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS)

Collection Method

Collected from CTD casts aboard the R/V Alpha Helix.

Time Range

1995-05-30 to 1995-06-25

Freshness

2026-03-05 23:36:15.598519

Geography

Gulf of Alaska