LHASA: Global Landslide Nowcast Model Outputs at 1 km Daily Resolution

NASA's Landslide Hazard Assessment for Situational Awareness model combines satellite precipitation with susceptibility data to issue daily landslide probability nowcasts. The model identifies locations where extreme rainfall coincides with moderate to very high susceptibility derived from slope, geology, and infrastructure. Spatial coverage spans from 60°N to 60°S, and the archive contains a daily record from a retrospective model run.

Use Cases

• Daily landslide risk assessment based on satellite precipitation estimates and susceptibility factors.
• Retrospective analysis of landslide probability patterns based on the model's historical run.
• Integrating landslide nowcasts with other hazard data for multi-risk disaster planning.
• Validating landslide susceptibility maps using the model's derived susceptibility layers.

Strengths

• Model combines multiple data sources: satellite precipitation, slope, geology, roads, faults, and forest loss.
• Provides daily temporal resolution for landslide probability nowcasting.
• Spatial coverage is global, from 60°N to 60°S latitude.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or source bias inherent to the input satellite and susceptibility layers.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from the Landslide Hazard Assessment for Situational Awareness (LHASA) model combining satellite precipitation and a susceptibility map.

Time Range

Daily records from a retrospective model run.

Freshness

Last updated 2026-03-13 01:53:17.010574; freshness should be verified.

Geography

Global coverage from 60°N to 60°S latitude.