Airborne Snow Observatory Bare-Earth Elevation Model at 3-Meter Resolution

ASO L4 Lidar Point Cloud Digital Terrain Model 3m UTM Grid V001 provides 3-meter resolution gridded bare-earth elevation data, excluding trees. The dataset was created by the NASA/JPL Airborne Snow Observatory aircraft survey campaigns and last updated in October 2019.

Use Cases

• Calculate snow depth by differencing 'snow-on' product elevations from this bare-earth Digital Terrain Model (DTM).
• Model hydrological runoff using the 3-meter gridded elevation data as a baseline for terrain analysis.
• Generate high-resolution topographic maps for mountainous regions from the point-cloud-derived DTM.
• Assess vegetation structure by comparing this bare-earth DTM with surface models that include vegetation.

Strengths

• Provides a high-resolution 3-meter gridded elevation product.
• Data is specifically collected under snow-free conditions to establish a clean baseline.

Limitations

• Data recency is limited, with the last update recorded in 2019.
• Specific spatial coverage and total area size are not provided in the description.

Provenance

Source

NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

Collection Method

Collected via airborne lidar surveys during snow-free conditions.

Freshness

Last updated 2019-10-10.