Aerial Imagery of U.S. Coastal Areas from 1944 to Present

Over 80 years of aerial imagery collected by NOAA and the US Army Corps of Engineers supports shoreline mapping. The dataset includes high-resolution true color, infrared, 4-band, black and white, and hyperspectral ortho-rectified mosaic tiles. Imagery ground sample distances range from 0.05 meters to 1 meter, with most data at 0.50 meters per pixel.

Use Cases

• Train semantic segmentation models on true color and infrared imagery to automatically delineate shoreline boundaries.
• Analyze coastal erosion over time using the historical time series of ortho-rectified mosaic tiles dating from 1944.
• Classify land cover in coastal zones using the 4-channel imagery and hyperspectral imagery bands.
• Assess image quality and resolution for mapping applications by comparing data with different ground sample distances (GSD) of 0.05m, 0.25m, 0.35m, and 0.50m.

Strengths

• Extensive temporal coverage spanning from 1944 to the present, providing an 80+ year historical record.
• High spatial resolution, with data collected by the US Army Corps of Engineers offering a ground sample distance of 0.05 meters.
• Diverse imagery types including true color, infrared, 4-band, black and white, and hyperspectral data for multi-modal analysis.

Limitations

• Specific row, column, and total file size metrics are unknown, making it difficult to assess the dataset's computational scale.
• Imagery resolution and collection methods vary significantly across the time range and between contributing agencies (NOAA NGS, OCM, USACE).
• Geographic coverage is limited to U.S. coastal areas, which may not be representative of global coastal environments.

Provenance

Source

National Oceanic and Atmospheric Administration (NOAA) Office for Coastal Management, NOAA National Geodetic Survey, and the US Army Corps of Engineers.

Collection Method

Imagery acquired from airplane flights and processed into ortho-rectified mosaic tiles in GeoTIFF or ERDAS Imagine .img format.

Time Range

1944 to present

Freshness

The dataset is an ongoing project, with a last recorded update in December 2025.

Geography

Coastal areas across the United States.