HRAC_Precip: High-Resolution Altitude-Corrected Precipitation for the CONUS

NASA's High Resolution Altitude Corrected Precipitation dataset enhances the TMPA 3B43 monthly product for the contiguous United States. It applies a correction function based on land surface elevation to reduce bias, verified against approximately 9,200 gauge measurements. The resulting product covers the entire CONUS at a 1-kilometer spatial resolution.

Use Cases

• Bias correction of satellite precipitation estimates based on the described elevation-dependent correction function.
• High-resolution hydrological modeling based on the 1-km grid precipitation data.
• Validation of satellite precipitation products based on the comparison with 9,200 gauge measurements.
• Analysis of precipitation patterns in mountainous regions based on the elevation-corrected data.

Strengths

• Spatial resolution is improved to 1 kilometer from the original 0.25-degree product.
• Verification was performed against approximately 9,200 gauge measurements across the CONUS.
• Product specifically addresses underestimation bias at elevations above 1,500 meters.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite data from the TMPA 3B43 product resampled and corrected using a function derived from gauge comparisons and elevation data.

Time Range

null

Freshness

Last updated 2026-03-13 01:42:31.863093; freshness should be verified.

Geography

Contiguous United States (CONUS)