LPJ-EOSIM: Global Daily Wetland Methane Flux at 0.5 Degrees

LPJ-EOSIM Version 1 provides simulated daily global wetland methane emissions at a 0.5-degree spatial resolution, delivered on a two-month cadence for low-latency monitoring. The model uses wetland extent, soil moisture, temperature, and carbon content to estimate fluxes, excluding ponds, lakes, and coastal wetlands. Four Cloud Optimized GeoTIFF files are produced per day, including outputs forced by MERRA-2 and ERA5 reanalyses alongside mean and standard deviation layers.

Use Cases

• Rapid detection and attribution of climate-carbon feedbacks based on simulated daily flux estimates.
• Strategic placement of field measurement campaigns using predicted emission hotspots from the model.
• Supporting the United States Greenhouse Gas Center's mission to study natural GHG fluxes with low-latency data.
• Analyzing spatial and temporal patterns of wetland methane emissions under different meteorological forcings (MERRA-2 vs. ERA5).

Strengths

• Provides global coverage at a consistent 0.5-degree spatial resolution.
• Offers low-latency delivery on a two-month cadence, with granules updated as new CO2 input data become available.
• Cross-platform presence on Data.gov and NASA EarthData indicates official curation and importance for climate research.

Limitations

• Dataset size, row count, and specific column names are not provided in any source, limiting precise technical assessment.
• The model excludes small ponds, lakes, and coastal wetlands from its wetland definition, which may omit significant emission sources.
• Relies on simulated wetland extent and characteristics, introducing model uncertainty compared to direct measurements.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Simulated output from the Lund-Potsdam-Jena Earth Observation SIMulator (LPJ-EOSIM) model.

Freshness

Last updated on 2026-04-10 according to Data.gov entries.

Geography

Global