Historical Bathythermograph Data from STRANGER Vessel Across the North Pacific

Mechanical bathythermograph (MBT) data collected by the vessel STRANGER across multiple ocean basins from 1954 to 1962. The dataset provides temperature-depth profiles for the upper ocean layers, processed by the National Oceanographic Data Center into the standard C128 format. It covers regions including the Bering Sea, Gulf of Alaska, and the South China Sea.

Use Cases

• Analyzing the thermal structure of the upper ocean (up to 285m) using temperature-depth value pairs.
• Studying spatial patterns of sea surface temperature and subsurface layers across the North Pacific Ocean.
• Investigating historical ocean conditions by using reported cruise information, date, position, and time for each observation.
• Examining temperature data recorded at uniform 5-meter depth intervals for consistency in profile comparison.

Strengths

• Data is processed to a known standard format (NODC C128), ensuring structural consistency.
• Provides a specific temporal range of over seven years (1954-12-09 to 1962-04-14).
• Covers a wide geographic area across eight distinct ocean regions and seas.

Limitations

• Key metadata such as row count, column names, and file size are unknown across all platforms.
• Instrument limitation: MBT data is only useful for the upper ocean layers, with a maximum observation depth of approximately 285 meters.
• Conflicting 'last updated' dates: Data.gov reports 2026-04-01, while NASA Earthdata reports the original collection end date of 1962-04-14.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce.

Collection Method

Temperature-depth profiles obtained using the mechanical bathythermograph (MBT) instrument from the vessel STRANGER, processed by NODC.

Time Range

1954-12-09 to 1962-04-14

Freshness

2026-04-01 15:03:54.291868 (Data.gov)

Geography

Bering Sea, Coastal Waters of Southeast Alaska and British Columbia, Gulf of Alaska, Gulf of Thailand, Indian Ocean, North Pacific Ocean, Philippine Sea, South China Sea.