NOAA 2023 Ortho-rectified Aerial Mosaic of Maryland Coastline

May 22, 2023 aerial imagery covering approximately 426 square miles of the Eastern Delmarva Peninsula from Bethany Beach to Chincoteague, Maryland. The National Oceanic and Atmospheric Administration collected the data using a Leica ADS100 sensor on a Cessna 404 aircraft, timed to low tide conditions. The data is ortho-rectified and referenced to the NAD83 (2011) UTM Zone 18N and NAVD88 Geoid 18 coordinate systems.

Use Cases

• Monitor shoreline erosion and accretion based on high-resolution aerial imagery.
• Analyze coastal landform changes based on ortho-rectified imagery collected near low tide.
• Create base maps for coastal management planning based on georeferenced aerial mosaics.
• Validate or supplement satellite-derived coastal data based on higher-resolution airborne sensor data.

Strengths

• Imagery was collected on a specific date (May 22, 2023) under controlled tidal conditions (+/- 3 hours of low tide).
• Covers a defined area of approximately 426 square miles on the Eastern Delmarva Peninsula.
• Data is ortho-rectified and uses defined horizontal (NAD83 UTM Zone 18N) and vertical (NAVD88 Geoid 18) reference systems.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for quantitative analysis.
• The description metadata is limited; actual data quality and resolution require manual inspection after download.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via a Woolpert, Inc Cessna 404 aircraft equipped with a Leica ADS100 Airborne Digital Sensor.

Time Range

May 22, 2023

Freshness

Last updated 2026-03-13 20:54:58.263501; freshness should be verified.

Geography

Eastern Delmarva Peninsula from Bethany Beach to Chincoteague, Maryland, USA.