Bathythermograph Data from the MORNING STAR in the North Pacific

The Bering Sea, Gulf of Alaska, and North Pacific Ocean contain temperature-depth profiles collected by the vessel MORNING STAR. The dataset comprises observations from May 1961 to April 1962, processed into the NODC standard C128 format by the National Oceanic and Atmospheric Administration. Each profile provides paired temperature and depth values at uniform 5-meter intervals, focusing on the upper ocean layers.

Use Cases

• Analyzing the seasonal thermal structure of the upper ocean using temperature-depth pairs recorded at 5-meter intervals.
• Mapping historical temperature gradients in the Bering Sea and Gulf of Alaska using cruise position and date columns.
• Studying upper-layer ocean heat content variability over the one-year time range covered by the observations.
• Calibrating or validating regional ocean models with in-situ temperature profile data from a defined cruise.

Strengths

• Data is processed to a standardized format (NODC C128), ensuring consistency for analysis.
• Provides a complete one-year time series from May 1961 to April 1962 for studying seasonal changes.
• Includes precise geographic coverage across three specific ocean regions: the Bering Sea, Gulf of Alaska, and North Pacific.

Limitations

• Conflicting last updated dates exist between platforms (2026-03-05 on datagov vs. 1962-04 21 on nasa_earthdata), creating uncertainty about metadata maintenance.
• The mechanical bathythermograph (MBT) instrument limits observations to a maximum depth of approximately 285 meters, restricting analysis to the upper ocean.
• Key metadata such as exact row count, file size, and column names are unavailable across all sources.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Temperature-depth profiles collected using a mechanical bathythermograph (MBT) instrument from the vessel MORNING STAR and processed by NODC.

Time Range

1961-05-01 to 1962-04-21

Freshness

2026-03 05 23:41:44.771179

Geography

Bering Sea, Gulf of Alaska, North Pacific Ocean