NOAA Topobathy Lidar Point Cloud for Gloucester, Massachusetts Coast

2021 NOAA NGS Topobathy Lidar: Gloucester, MA data were collected by the National Oceanic and Atmospheric Administration National Geodetic Survey using a Leica Chiroptera 4X system. The acquisition period spanned from July 29, 2021, to August 14, 2022. The data are provided in LAS 1.4 format and include points classified as ground, water surface, bathymetric points, and submerged features according to ASPRS standards.

Use Cases

• Modeling coastal erosion and sediment transport based on classified ground and submerged feature points.
• Creating integrated digital elevation models (DEMs) for land and seafloor based on topobathy data.
• Analyzing nearshore bathymetry for navigation and marine planning using bathymetric point classifications.
• Classifying land cover and coastal features based on ASPRS-standard point classes like ground, water, and noise.

Strengths

• Data collection used a specific Leica Chiroptera 4X system, suggesting standardized acquisition.
• Points are classified to ASPRS standards, including ground, water surface, and bathymetric categories.
• Acquisition period is explicitly stated as 20210729 - 20220814.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale processing.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Collected via airborne Leica Chiroptera 4X lidar system by the NOAA National Geodetic Survey Remote Sensing Division.

Time Range

2021-07 29 to 2022-08-14

Freshness

Last updated 2026-03-13 20:57:11.344522; freshness should be verified.

Geography

Gloucester, Massachusetts, USA