High-Resolution CTD Profiles from NOAA Ship Miller Freeman 1991

CTD profiles provide high-resolution measurements of temperature, salinity, density, and other oceanographic parameters. The dataset contains 287 casts collected from the NOAA Ship Miller Freeman in the Bering Sea, Gulf of Alaska, and North Pacific Ocean. Data was processed by the Pacific Marine Environmental Laboratory and submitted to the National Oceanographic Data Center in a standardized format.

Use Cases

• Analyzing vertical water column structure using temperature and salinity profiles.
• Calculating ocean density (sigma-t) for studies of water mass distribution and circulation.
• Investigating relationships between dissolved oxygen levels and physical oceanographic conditions.
• Correlating surface meteorological conditions recorded during casts with subsurface ocean properties.
• Mapping the spatial distribution of oceanographic features across the Bering Sea and Gulf of Alaska.

Strengths

• Contains 287 high-resolution CTD casts, providing detailed vertical profiles.
• Data is processed and available in the standardized NODC F022-CTD-Hi Resolution format.
• Measurements include core parameters like temperature, salinity, density, and potentially dissolved oxygen.
• Profiles can have depth intervals as fine as 1 meter, offering detailed resolution.

Limitations

• The exact column names, row count, and file size are not provided by any source.
• Sources disagree on the project name, listing both 'Cooperative' and 'Coordinated' Investigations.
• The dataset is from a specific 1991 cruise, limiting temporal analysis to a single season.

Provenance

Source

Pacific Marine Environmental Laboratory (PMEL), submitted by Ms. Leslie Lawrence.

Collection Method

Data collected using Conductivity-Temperature-Depth (CTD) instruments lowered from the NOAA Ship Miller Freeman.

Time Range

1991-04-02 to 1991-10-05

Freshness

2026-04-01 15:04:04.197804

Geography

NE Pacific Ocean, including the Bering Sea, Gulf of Alaska, and North Pacific Ocean (limit-180).