VEMAP 1: Model Input Database for Ecosystem Modeling

1895 to 1996 long-term data compiled for Phase 1 of the Vegetation Ecosystem Modeling and Analysis Project. The database contains model-generated and compiled datasets of climate, soils, vegetation, and climate change scenarios for the conterminous United States. Data are provided on a 0.5-degree latitude by 0.5-degree longitude grid.

Use Cases

• Comparing ecosystem model outputs using standardized historical climate inputs.
• Assessing vegetation response to climate change scenarios across the conterminous US.
• Validating biogeochemistry models against long-term mean soil and climate data.
• Analyzing spatial patterns of evapotranspiration and primary production.

Strengths

• Provides a century of historical data (1895-1996) for model benchmarking.
• Offers a standardized, gridded (0.5-degree) input set for consistent model comparisons.
• Compiles multiple data types (climate, soils, vegetation, scenarios) into a unified resource.

Limitations

• Metadata completeness is low: column names and exact row/record counts are unknown.
• Data is historical, with the latest year being 1996, limiting contemporary analysis.
• Platforms conflict on 'last updated' date (1993 vs. 2026), raising provenance questions.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Compiled and model-generated datasets.

Time Range

1895 to 1996

Freshness

2026-04-09 21:19:09.286789

Geography

Conterminous United States