Historical North Pacific Upper Ocean Temperature Profiles from RAMSDEN

1953 to 1959 temperature-depth profiles from the RAMSDEN vessel in the North Pacific Ocean, collected using mechanical bathythermographs. Data is processed into the NODC standard C128 format, containing pairs of temperature and depth values recorded at 5-meter intervals. The National Oceanic and Atmospheric Administration provides this dataset for studying the thermal structure of the ocean's upper layers.

Use Cases

• Analyzing historical temperature gradients in the upper 285 meters of the North Pacific using paired temperature-depth values.
• Studying seasonal or interannual thermal variability from 1953 to 1959 using cruise date and position data.
• Calibrating or validating ocean mixed layer models with in-situ temperature profiles recorded at uniform 5-meter intervals.
• Investigating the spatial distribution of near-surface ocean heat content using geospatial position and time metadata.

Strengths

• Provides a consistent 6-year temporal record from 1953-02-18 to 1959-04-04 for analyzing decadal-scale changes.
• Data follows a standardized format (NODC C128) with uniform 5-meter depth intervals, ensuring structural consistency.
• Includes essential metadata for each observation: cruise information, date, position, and time.

Limitations

• Instrument limitation restricts observations to a maximum depth of approximately 285 meters, capturing only the upper ocean.
• Key quantitative details like total row count, file size, and specific column names are unavailable from the provided sources.
• Conflicting 'last updated' metadata exists between platforms (2026-03-05 on Data.gov vs. 1959-04-04 on NASA Earthdata).

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected using mechanical bathythermograph (MBT) instruments and processed by NODC to the standard C128 format.

Time Range

1953-02-18 to 1959-04-04

Freshness

2026-03-05 23:27:44.775200

Geography

North Pacific Ocean