NEX-DCP30: Downscaled U.S. Climate Projections from 1950-2099

1950 through 2099 of monthly climate data for the conterminous United States. The NASA Earth Exchange (NEX) provides high-resolution, bias-corrected projections from 33 climate models across four greenhouse gas emissions scenarios (RCPs). It includes monthly averaged maximum temperature, minimum temperature, and precipitation for retrospective (1950-2005) and prospective (2006-2099) periods.

Use Cases

• Projecting regional temperature extremes based on monthly maximum and minimum temperature data.
• Modeling hydrological impacts using monthly precipitation projections across different emissions scenarios.
• Evaluating climate model ensemble statistics for uncertainty analysis across 33 downscaled models.
• Assessing long-term climate trends for ecological or agricultural impact studies using the 1950-2099 time series.

Strengths

• Includes projections from 33 distinct climate models, allowing for ensemble analysis.
• Covers a long temporal range from 1950 to 2099, including both historical and future periods.
• Provides data for four standard greenhouse gas emissions scenarios (RCPs) used in IPCC AR5.
• Data is downscaled and bias-corrected for high-resolution analysis of the conterminous United States.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to its focus on the conterminous United States.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Downscaled projections derived from General Circulation Model (GCM) runs under CMIP5.

Time Range

1950-2099

Freshness

Last updated 2026-03-05 19:59:49.449634; freshness should be verified.

Geography

Conterminous United States