Chesapeake Bay Topobathymetric Lidar Survey, 518 Square Miles, 2018

Topobathymetric lidar data covering approximately 518 square miles of Chesapeake Bay, Virginia, from Fisherman Island National Wildlife Refuge to Pitts Neck. The data were collected by the National Oceanic and Atmospheric Administration using a Riegl VQ-880-G sensor between March 29 and May 25, 2018. The dataset consists of 1,527 tiles in LAS 1.4 format with points classified as ground, water surface, bathymetric, and other categories.

Use Cases

• Model coastal erosion and sediment transport based on classified ground and bathymetric points.
• Analyze seafloor topography and submerged features based on bathymetric and submerged object point classifications.
• Create high-resolution digital elevation models (DEMs) for coastal zones based on ground and water surface points.
• Study the water column and coastal processes based on the classified point categories for water surface and column.

Strengths

• Data covers a specific, large area of approximately 518 square miles.
• Points are classified into specific categories like ground, water surface, and bathymetric, enabling targeted analysis.
• Collection dates and sensor model (Riegl VQ-880-G) are explicitly stated, providing provenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single collection period in 2018; temporal changes are not captured.
• The primary file formats listed are PDF and HTML, suggesting the raw LAS data may require separate access or specific tools.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via airborne lidar using a Riegl VQ-880-G sensor.

Time Range

March 29, 2018 through May 25,我们发现 2018

Freshness

Last updated 2026-03-13 20:43:49.359475; freshness should be verified.

Geography

Chesapeake Bay, Virginia, from Fisherman Island National Wildlife Refuge to Pitts Neck