CLM5-DART Regional Carbon Fluxes and Stocks over the Western US, 1998-2010

NASA's CLM5-DART dataset provides monthly estimates of biomass stocks and land-atmosphere carbon exchange across the western United States from 1998 through 2010. The data are generated at a 0.95° longitude x 1.25° latitude grid resolution from two types of model simulations: a 'free' Community Land Model (CLM5.0) run and an 'assimilation' run constrained by remote sensing observations of leaf area index and aboveground biomass.

Use Cases

• Comparing 'free' model simulations against 'assimilation' runs constrained by satellite observations of leaf area index and biomass.
• Analyzing spatial and temporal trends in carbon fluxes like net ecosystem exchange across the western US grid.
• Studying the impact of data assimilation on estimates of aboveground biomass stocks over a 13-year period.
• Validating regional climate model outputs for vegetation state and carbon exchange parameters.

Strengths

• Provides a 13-year continuous time series from 1998 to 2010 for longitudinal analysis.
• Offers data from two distinct model simulation types ('free' and 'assimilation') for comparison.
• Covers the complex mountainous terrain of the western United States at a defined grid resolution (0.95°x1.25°).
• Integrates remotely sensed observations to constrain model states in the assimilation runs.

Limitations

• Conflicting metadata: the last update date is reported as 2026-03 13 on Data.gov but 2010-12-31 on NASA EarthData, suggesting potential platform errors.
• Specific column names, row counts, and dataset size are not provided by any source.
• The license is ambiguously listed as 'other-license-specified' on Data.gov but is 'None' on NASA EarthData.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Outputs from Community Land Model (CLM5.0) simulations and the CLM5-DART land surface data assimilation system, constrained by remote sensing.

Time Range

1998-2010

Freshness

2026-03-13 04:24:24.209086

Geography

Western United States