2022 NOAA Topobathy Lidar DEM for Big Bend, Florida

1,373 square miles of topobathy lidar data were collected by Dewberry for the Big Bend Wildlife Management Area in Florida between October and November 2022. The dataset includes 220 5km x 5km DEM tiles, with the North Block containing 102 of those tiles. Data points are classified into categories such as ground, water surface, bathymetric bottom, and submerged objects.

Use Cases

• Modeling coastal erosion and sediment transport based on classified ground and bathymetric bottom points.
• Mapping submerged habitats and objects like wrecks or rocks based on the 'submerged object' classification.
• Creating high-resolution digital elevation models for coastal flood risk assessment using the 5km x 5km DEM tiles.
• Analyzing the interface between land and water surfaces using the classified water surface and derived water surface points.

Strengths

• Data covers a specific, large area of approximately 1,373 square miles.
• Includes 220 high-resolution 5km x 5km DEM tiles for detailed analysis.
• Points are classified into specific categories like ground, water surface, and bathymetric bottom, enabling targeted feature extraction.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic and temporal bias inherent to the specific 2022 survey of the Big Bend, Florida area.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected by Dewberry using a CZMIL Super Nova lidar system from an airplane.

Time Range

2022-10-27 to 2022-11-29

Freshness

Last updated 2026-03 13 21:07:10.919607; freshness should be verified.

Geography

Big Bend Wildlife Management Area, Florida, USA