Arctic Ocean CTD Profiles from Helicopter Survey 1994

CTD profiles provide high-resolution measurements of pressure, temperature, salinity, and sigma-T in the Arctic Ocean. The dataset contains 73 profiles collected from a helicopter during the AOS-94 expedition aboard the CCGS Louis S. St-Laurent. Data were converted into the NODC standard F022 format by the National Snow and Ice Data Center with assistance from UCSD/SIO.

Use Cases

• Analyzing vertical structure of temperature and salinity in the Arctic Ocean.
• Calculating water density (sigma-T) from measured parameters for physical oceanography studies.
• Using station position, date, and time metadata to map oceanographic conditions during the 1994 expedition.
• Investigating near-continuous profiles at fine depth intervals for detailed feature resolution.

Strengths

• Dataset contains 73 distinct high-resolution CTD profiles, providing substantial observational points.
• Data covers a specific time range from 1994-07 -28 to 1994-08-27 during a dedicated research expedition.
• Profiles are reported in a standardized NODC format (F022), ensuring structured consistency.

Limitations

• Exact row count, column names, and dataset size are not provided by any source.
• Sources conflict on the temporal coverage: one source states 1994-07-28 to 1994-08-27, while another mentions the period 26 July - 1 September 1994.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce; data converted by National Snow and Ice Data Center (NSIDC).

Collection Method

High-resolution data collected using CTD/STD instruments lowered from a helicopter during the AOS-94 expedition.

Time Range

1994-07-28 to 1994-08-27

Freshness

2026-03-05 22:42:07.657201

Geography

Arctic Ocean