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Published on: March 13, 2017
Layer of Abnormally Cold Bottom Water over Southern Aves Ridge
Science (New York, N.Y.)
|March 25, 1966
Summary
A cold, oscillating water layer was detected near Ayes Ridge, suggesting a temporary anomaly. This unusual thermal feature, observed after a hurricane, impacted ocean temperature structure.
Area of Science:
- Oceanography
- Marine Geophysics
Background:
- Subsurface ocean layers can exhibit complex thermal structures.
- Environmental disturbances, like hurricanes, can significantly impact marine thermal profiles.
Purpose of the Study:
- To investigate an anomalous cold water layer observed near Ayes Ridge.
- To determine the nature and potential cause of the observed thermal discontinuity.
Main Methods:
- Utilized thermograd measurements to record temperature profiles.
- Analyzed temperature data across the sediment-water interface.
Main Results:
- Identified a 13-meter cold water layer with high-frequency internal oscillations.
- Observed a significant temperature discontinuity at the sediment-water interface.
- The layer's thermal structure deviated from normal temperature profiles, indicating a transient state.
Conclusions:
- The cold water layer was a temporary phenomenon.
- The hurricane passage three days prior likely influenced this abnormal thermal condition.
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