Pioneer Ship Historical Temperature-Depth Profiles in North Pacific

Approximately 285 meters is the maximum observation depth for these mechanical bathythermograph (MBT) readings. The dataset contains temperature-depth profile pairs recorded at uniform 5-meter intervals from the R/V PIONEER, processed by the National Oceanographic Data Center (NODC) into its standard C128 format. It captures ocean thermal structure across the Bering Sea, Gulf of Alaska, and North Pacific Ocean over a 13-year period.

Use Cases

• Analyzing the thermal structure of the upper ocean layers using paired temperature-depth values.
• Studying seasonal or interannual temperature variability in the Bering Sea, Gulf of Alaska, and North Pacific.
• Correlating ocean surface and subsurface temperature data with cruise information, date, position, and time for each observation.
• Investigating historical ocean conditions using data formatted to the NODC standard C128 specification.

Strengths

• Data spans a 13-year time range from 1952-09-22 to 1965-09-26, providing a multi-decadal record.
• Observations are standardized to the NODC C128 format with temperature recorded at uniform 5 m depth intervals.
• Includes precise geospatial coverage for the Bering Sea, Gulf of Alaska, and North Pacific Ocean.

Limitations

• Key metadata such as row count, total size, and specific column names are unavailable from all sources.
• The mechanical bathythermograph (MBT) instrument limits useful observations to a maximum depth of approximately 285 meters.
• Conflicting 'last updated' dates exist between platforms (2026-04-01 on Data.gov vs. 1965-09-26 on NASA Earthdata).

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), originating from the R/V PIONEER.

Collection Method

Data gathered using mechanical bathythermograph (MBT) instruments and processed by NODC to its standard C128 format.

Time Range

1952-09-22 to 1965-09-26

Freshness

2026-04-01 15:02:01.791159

Geography

Bering Sea, Gulf of Alaska, North Pacific Ocean