Topobathy Lidar DEM for St. Jeromes Creek, MD, 2017

St. Jeromes Creek, Maryland, is covered by approximately 34 square miles of topobathy lidar data collected on August 5, 2017. The National Oceanic and Atmospheric Administration acquired the data using a Riegl VQ880G sensor from an airplane. The dataset consists of 342 tiles, each 500 meters by 500 meters, with points classified for ground, water surface, and bathymetric bottom.

Use Cases

• Model coastal erosion and sediment transport based on classified ground and bathymetric bottom points.
• Analyze seafloor topography and water column structure based on point classifications for bathymetry.
• Create high-resolution digital elevation models (DEMs) for flood risk assessment based on terrain and water surface data.
• Study coastal habitat changes by integrating topographic and bathymetric elevation layers.

Strengths

• Data covers a defined coastal area of approximately 34 square miles.
• Includes 342 consistently sized tiles (500m x 500m) for manageable processing.
• Points are classified into specific categories like ground, water surface, and bathymetric bottom.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single acquisition date (August 5, 2017), which may not reflect seasonal or long-term changes.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via airborne Riegl VQ880G lidar sensor.

Time Range

2017-08-05

Freshness

Last updated 2026-03-13 22:17:05.653756; freshness should be verified.

Geography

St. Jeromes Creek, Maryland, USA