IMERG and LHASA: Global Landslide Exposure Maps 2001-2016

Global GeoTIFF raster maps show average annual landslide hazard and exposure of population, roads, and critical infrastructure. The eight files cover a 16-year period from 2001 to 2016 at 30 arc-second resolution, totaling approximately 20.3 GB. The data was produced by NASA using the Landslide Hazard Assessment for Situational Awareness (LHASA) model.

Use Cases

• Model regional landslide risk based on satellite precipitation and susceptibility factors.
• Assess population exposure to landslide hazards for humanitarian planning.
• Evaluate infrastructure vulnerability by analyzing road and critical facility exposure.
• Validate landslide prediction models using the 16-year average hazard nowcasts.

Strengths

• Provides a 16-year average (2001-2016) for stable long-term trend analysis.
• Covers global spatial extent from 72°N to 60°S latitude.
• Includes exposure metrics for population, roads, and five types of critical infrastructure.
• Data is at a high 30x30 arc-second spatial resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic and temporal bias inherent to the IMERG satellite source and 2001-2016 period.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Modeled by the LHASA model combining satellite precipitation estimates with susceptibility maps.

Time Range

2001 to 2016

Freshness

Last updated 2026-03-13 01:29:44.576071; freshness should be verified.

Geography

Global, 72°N to 60°S latitude, 180°W to 180°E longitude