Classified LiDAR Point Clouds for Washington DC 2020

2020 LiDAR data consists of processed, classified LAS 1.4 files covering the District of Columbia. The dataset features USGS Quality Level 2 specifications and contains voids due to data redaction guided by the United States Secret Service. It is provided as an ArcGIS Image service with point cloud files available for download.

Use Cases

• Generate high-resolution digital elevation models from classified LAS point clouds for urban planning.
• Analyze elevation data voids to understand restricted areas within Washington DC.
• Process LiDAR2020 point clouds for 3D building modeling and infrastructure analysis in the District of Columbia.

Strengths

• Data conforms to USGS QL2 specifications, indicating a defined quality standard.
• Point clouds are classified, providing pre-processed categories for analysis.
• Covers the entire District of Columbia, offering complete spatial coverage for the region.

Limitations

• Contains intentional data voids due to security redaction, creating gaps in coverage.
• Primary access is via an ArcGIS Image service, which may limit direct point cloud manipulation for some users.
• Sample data and specific technical details like point density are unavailable for review.

Provenance

Source

District of Columbia government via Data.gov.

Collection Method

Acquired via LiDAR survey and processed into classified LAS 1.4 files.

Time Range

2020

Freshness

Last updated on 2025-05-07.

Geography

District of Columbia, Washington DC.