2024 USACE Topographic Lidar DEM for Lake Seminole (AL, FL, GA)

USACE SAM Topographic Lidar DEM: Lake Seminole (AL, FL, GA) contains rasterized topographic lidar elevations collected with a Teledyne ALTM Galaxy PRIME sensor. The data were processed by the USACE JALBTCX and provided to NOAA OCM for public distribution. Horizontal positions are referenced to NAD83 UTM Zone 16N, and vertical positions are referenced to the NAD83 (2011) ellipsoid and transformed to NAVD88 using the GEOID18 model.

Use Cases

• Model coastal erosion and flood risk based on high-resolution topographic elevation data.
• Analyze landform and geomorphic processes around Lake Seminole based on lidar-derived elevation.
• Create base maps for infrastructure planning using tiled 1-km by 1-km raster data.
• Conduct hydrological flow modeling based on the detailed digital elevation model.

Strengths

• Data is georeferenced to specific horizontal (NAD83 UTM Zone 16N) and vertical (NAVD88 via GEOID18) datums.
• Lidar data is processed and tiled into a standardized 1-km by 1-km grid for GIS use.
• Data originates from authoritative sources: USACE JALBTCX and NOAA OCM.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific Lake Seminole area.

Provenance

Source

USACE Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) and NOAA Office for Coastal Management (OCM).

Collection Method

Airborne lidar data collected with a Teledyne ALTM Galaxy PRIME sensor, processed into rasterized elevations and tiled LAS files.

Time Range

2024

Freshness

Last updated 2026-03-13 22:18:31.745029; freshness should be verified.

Geography

Lake Seminole, spanning Alabama, Florida, and Georgia, USA.