EVANS Bathythermograph Temperature-Depth Profiles from 1967

National Oceanic and Atmospheric Administration data contains mechanical bathythermograph (MBT) temperature-depth profiles from the EVANS cruise. The dataset covers the North Pacific Ocean and South China Sea over an 18-day period in September and October 1967. Observations are processed into the NODC C128 standard format, recording temperature at uniform 5-meter depth intervals down to approximately 285 meters.

Use Cases

• Analyzing the thermal structure of the upper ocean (0-285m) using temperature-depth pairs.
• Studying spatial temperature variation across the North Pacific and South China Sea using position data.
• Investigating short-term ocean temperature changes during the 1967 cruise period using date and time stamps.
• Calibrating or validating ocean models with historical in-situ temperature profile data.

Strengths

• Data is processed to a documented standard format (NODC C128), ensuring consistency.
• Provides precise temporal coverage from 1967-09-30 to 1967-10-17.
• Records temperature at uniform 5-meter depth intervals, facilitating profile analysis.
• Includes core metadata for each observation: cruise information, date, position, and time.

Limitations

• Key quantitative details like total row count, file size, and specific column names are unknown across all sources.
• Instrument limitation restricts data to the upper ocean layers, with a maximum depth of approximately 285 meters.
• The dataset's age (1967) may limit direct comparison with modern high-resolution sensor data.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Mechanical bathythermograph (MBT) instrument measurements processed by NODC.

Time Range

1967-09-30 to 1967-10-17

Freshness

2026-03-05 22:50:07.136911

Geography

North Pacific Ocean and South China Sea