HX118 Cruise: CTD/STD Data from the Gulf of Alaska

The University of Alaska Institute of Marine Science collected this high-resolution CTD/STD dataset aboard the R/V Alpha Helix during cruise HX118. Data covers 77 oceanographic stations in the Gulf of Alaska from September 14 to 29, 1988, with field corrections applied based on bottle sample comparisons. The dataset is stored in the NODC F022 format.

Use Cases

• Analyzing vertical profiles of salinity and temperature across 77 stations.
• Studying seasonal oceanographic conditions in the Gulf of Alaska during September 1988.
• Calibrating historical sensor data using the described field correction methodology.
• Investigating water mass distribution and structure in a coastal ocean system.

Strengths

• Data is field-corrected based on 9 bottle samples from 11 stations, suggesting quality control.
• Covers a defined spatial area with 77 discrete sampling stations.
• Dataset has a clear provenance from a specific research cruise (HX118) and principal investigator.

Limitations

• Column names and data schema are not provided in any source, limiting immediate usability.
• Conflicting metadata exists: one platform lists a last update in 2026, while another lists the collection end date in 1988.
• The exact data size, row count, and license information are unknown.

Provenance

Source

University of Alaska, Institute of Marine Science; Dr. T.C. Royer

Collection Method

Collected via CTD/STD sensors aboard the R/V Alpha Helix, with field corrections from bottle samples.

Time Range

1988-09-14 to 1988-09-29

Freshness

2026-03-05 23:05:53.612594

Geography

Gulf of Alaska