2023 NOAA Ortho-rectified Aerial Mosaic of Eastern Chesapeake Bay

January 28, 2023 aerial imagery covering approximately 840 square miles of the Eastern Chesapeake Bay. The data was collected by the National Oceanic and Atmospheric Administration using a Leica ADS100 sensor on a Cessna 404 Titan aircraft, timed around low tide. It is ortho-rectified with a horizontal reference of NAD83 (2011) UTM Zone 18N and a vertical reference of NAVD88 Geoid 18.

Use Cases

• Monitor shoreline erosion and accretion based on high-resolution aerial imagery.
• Analyze coastal landform processes and geomorphic changes based on the ortho-rectified mosaic.
• Support habitat mapping and environmental assessments based on the four-band spectral data.
• Validate or update GIS basemaps for the Chesapeake Bay region based on the NAD83 (2011) geodetic reference.

Strengths

• Imagery was collected during a specific tidal window (+/- 3 hours of low tide), likely enhancing visibility of intertidal features.
• Data covers a defined area of approximately 840 square miles across 15 flight lines.
• Uses a professional-grade Leica ADS100 airborne digital sensor for data capture.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to a single-day collection in January 2023.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via airborne digital sensor (Leica ADS100) mounted on a Cessna 404 Titan aircraft.

Time Range

January 28, 2023

Freshness

Last updated 2026-03-13 20:55:23.004292; freshness should be verified.

Geography

Eastern portion of the Chesapeake Bay, Maryland, North America