Measurements of bottom loss from normal incident reflection of 12 kcps sound pulses. Data was collected using a semi-automatic instrument system developed for the investigation, capable of continuous measurement from a moving vessel. The dataset was created by Lloyd R. Breslau and published by NOAA's National Centers for Environmental Information in July 1963.
Use Cases
- Correlate bottom loss measurements with sea floor sediment type to infer geological composition.
- Analyze peak pressure of sea-floor echoes to model acoustic energy absorption.
- Study the time integral of the square of echo pressure to understand signal energy decay.
- Map continuous acoustic reflection data from a vessel's track to identify seabed features.
Strengths
- Original research focused on a specific 12 kcps frequency for controlled analysis.
- Data collection was performed continuously from a vessel underway, enabling spatial coverage.
- Dataset is preserved and published by the authoritative NOAA NCEI repository.
Limitations
- Dataset is from a single investigation in 1963, representing a historical snapshot.
- Specific sample size, row count, and geographic coverage are unknown from the description.
- The semi-automatic instrument system may reflect the technological limits of its era.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 7001147).
- Collection Method
- Data gathered using a custom semi-automatic instrument system measuring peak pressure and time integral of pressure squared from sea-floor echoes.
- Time Range
- Investigation published in 1963; specific collection dates unknown.
- Freshness
- null
- Geography
- Spatial coverage is not specified, but data was collected from a vessel at sea.