NOAA Topobathymetric Lidar DEM: Trappe to Toddville, MD, 2018-2019

Topobathymetric lidar data covering approximately 564 square kilometers of the Chesapeake Bay near Trappe to Toddville, Maryland. The National Oceanic and Atmospheric Administration (NOAA) collected the data via airborne surveys between November 2018 and April 2019. The final dataset includes classified point clouds and 36 Digital Elevation Models (DEMs) with 1-meter pixel resolution.

Use Cases

• Modeling coastal erosion and inundation based on integrated topographic and bathymetric elevation data.
• Analyzing seafloor and submerged feature morphology based on bathymetric bottom and water column classifications.
• Creating high-resolution terrain models for habitat mapping based on 1-meter pixel DEMs.
• Studying land-water interface dynamics based on ground and bathymetric point classifications.

Strengths

• Covers approximately 564 square kilometers with integrated land and underwater elevation data.
• Data is classified to ASPRS standards, including ground, bathymetric bottom, water column, and noise points.
• Final products include 36 Digital Elevation Models with consistent 1-meter pixel resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and exact file sizes are unknown, which may limit suitability assessment.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via airborne Riegl VQ-880-G series lidar systems across 14 missions.

Time Range

2018-11-07 to 2019-04 17

Freshness

Last updated 2026-03-13 21:37:29.003661; freshness should be verified.

Geography

Portion of the Chesapeake Bay near Trappe to Toddville, Maryland, including Taylors Island, Cambridge, Madison, Woolford, and Algonquin.