Hard and Soft Bottom Seafloor Maps for Select U.S. Pacific Locations

Unsupervised classification maps distinguishing hard from soft seafloor substrate at specific U.S. Pacific locations. The National Oceanic and Atmospheric Administration produced this preliminary product using backscatter, bathymetry, acoustic derivatives, and optical data. Data processing details are available in individual metadata records for each location.

Use Cases

• Modeling benthic habitat suitability based on substrate type mentioned in the description
• Analyzing the relationship between acoustic backscatter and seafloor geology based on the classification inputs
• Supporting marine spatial planning by identifying hard bottom areas for coral reef conservation
• Calibrating remote sensing data with in-situ seafloor characteristics based on the integrated data sources

Strengths

• Data originates from the authoritative National Oceanic and Atmospheric Administration
• Classification integrates multiple data sources: backscatter, bathymetry, acoustic derivatives, and optical data
• Last updated metadata indicates a recent timestamp of 2026-03-14

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download
• Column-level documentation is absent; field semantics must be inferred after download
• The product is explicitly labeled as preliminary, indicating it may not be a final version

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Unsupervised classification run using ArcGIS software with the Spatial Analyst extension

Time Range

null

Freshness

Last updated 2026-03-14 23:01:48.445913; freshness should be verified

Geography

Select U.S. locations in the Pacific Ocean (e.g., American Samoa, Commonwealth of the Northern Mariana Islands)